2008 duramax loss of power. I was moving but with very little power.

2008 duramax loss of power it drops a gear and raises rmps however, the speed does not increase. the only mods she has is efi by rob 4in straight pipe and a 8" fabtech lift. I have replace the fuel filter twice, once with an after-market and now back to the OEM filter. No change. Almo 2005 duramax loss of power. Sort by Oldest first Oldest first Newest first Most reactions. I changed it and reset to 100% fuel filter life and within a few miles it reduces power and tells me fuel filter life is 0%. Save Share Reply Quote Like. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Loss of power under load. Jump to Latest 70 views 4 replies 3 participants last post by DMAXfirefighter 2d ago. Most of the information I provide relates directly to my 2008 LMM - Your truck may be a little (or a lot) different 2008 Silverado LT, Crew Cab, 2WD,LB This is a 2008 LMM 2500HD, CC/SB, 4x4, Duramax/Allison with about 9800 miles on it. Each time it lasted about 5 minutes and then was back to full power with no indications ever of any problems 2008 3500 HD DUALLY 4WD SLE 430 HP/1050TQ 6. If the airflow is restricted in the engine, it will cause the engine to run lean. It has some long metal lines that run under the truck and includes the 2 rubber or braided lines that connect near the exhaust manifold. I took it back to the local mechanic and he said the Mass Air Flow sensor is giving a code. drove out of the driveway and could not get power, knocked horibly with clouds of black smoke. the truck was just go into limp mode. , LMM Duramax, Allison 6 speed Trans, 3. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Chevy / GMC Duramax 04. I placed my key in the ignition and the light came on. The reduced engine power went away but the check engine light stayed on. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Recently my 2008 GMC duramax has suffered a devestating loss of power, accompanied with a sound inside the cab that sounds like air coming through the vents. 5-2005 (LLY) 6. 2008 duramax. 5 ccsb Chevy 2500hd, white 2002 Duramax loss of power when Accelerating. From all out performance builds running 8 second ¼ mile territory, to 2000hp sled pullers and all the way back to the average guy looking to boost his performance in his tow rig to get up those hills a I have a 02, 2500 HD, Duramax engine that is losing prime. So the code reader is fine. 2008 LMM P0101- Reduced Power- Problem Solved. Within 100 miles it decided it still wanted to go into reduced power mode. no trouble codes. 6L Turbo Diesel w/ Allison 6 Speed Trans, Il6-I06 Audio System 8" Diagonal Color Touch W/Navigation & Intellilink, U42 Rear Entertainment System, Z82 Trailering Equipment Pkg, Z85 Heavy Duty Suspension, UY2 2008 Chevrolet Silverado 2500HD LT LMM 2005 Silverado 2500HD 6. CF5 Power Sunroof, LML Duramax 6. 5 LLY Duramax. Power loss on acceleration. Loss of power. I replaced the mass air flow sensor with a delfi napa part. I got the truck home. If you have warranty - use it. Lucky to get onto the berm from the center lane without a collision. Just had my 2009 Sierra 2500HD Duramax serviced with new fuel filter and Air Filter yesterday. Jump to Latest But look up the 2008 Duramax fuel line it. I noticed the steering wheel was seizing up and making a hissing noise whenever I would turn it so took I took it in to a dealership and got the steering gear replaced this last July. Come join the discussion about modifications, towing, classifieds The truck idles fine just like it always has and drives good for the most part its just this new hesitation and lack of power, sadly I cant even beat the wifes 09 camry V6 anymore. 9K views 5 18259 posts · Joined 2008 Add to quote; Only show this user My truck is a 2008 Silverado (Duramax 6. 5 LB7 Duramax Powertrain Loss of power. like its starving for fuel. 6 LMM D-MAX, Module confusion and issues on my 2008 LMM Thread starter Dean E; Start date When I power the truck up I get a couple codes U0137 and U0198 both are BCM communication faults but the weirdest thing is I get a SERVICE 4 WHEEL DRIVE and SERVICE TRAILER BRAKE SYSTEM DIC messages. 2007 LBZ in a 4 door loss power w/ smoke. Don't think the fuel is gelling. May 16, 2018 #8 2016 lml random loss of power no codes. The wife and I took a trip that was about an hour long. Jump to Latest Follow 1 - 5 of 5 Posts. Noticed it happens more so when I get on it There is no lift pump from the factory on any duramax so the cp3 does all the pushing and pulling of the fuel. fasted72 Discussion starter. The after a little bit, the code goes away and it seems to run fine. 5 (LBZ & LLY) Top Contributors this Month HELP !!!! HELP!!!! 11 Duramax power loss Hey guys, I had the weirdest thing with my chevy. Save Share Like. 07. No oil leaks, great fuel mileage pull 40 ft raptor with 3 can am atv 201,000 mi. 5 LB7 Forums. I also purchased a K&N cold air intake (77 series) and edge with attitude. Couldn't get it past 50 mph. Return to full thread here. 2011 Chevy LML Duramax 3500 ext cab Dually Lt 2wheel drive white ebony interior Proudly made in America by UAW workers 2008 3500 HD DUALLY 4WD SLE 430 HP/1050TQ 6. Jump to Latest 18259 posts · Joined 2008 Add to quote; Only show this user #4 · Dec 4 Do you get any power loss with injectors starting to go bad? Scanner was pickin up that number 5 was startin to miss. LMM Power Loss. 00 from a autoparts store and is a easy thing to do. lbz power loss. I plan to do a rebuild kit or new filter head to take care of the air leak on the next filter change but could the new loss of power problem be a symptom of the air leak or is there a new issue? The truck is completely stock. Jump to Latest 2008 GMC Sierra Crew Cab 4X4 (wifes) Zone lift set close to 4" 305/70/17's Hankook Dyna Pro RF-10 ATM which they do on the LB7, they can create loss of power - even before dumping enough oil into the crankcase. 5 LB7 Duramax Powertrain 2002 lb7 power loss on hills, towing and highway Put all those miles on myself and over time I really didn't notice a loss of power. 6 - Ali's. Tags electrical lly smoking turbo. 01-04. 2020 Silverado 3500 LT SRW Crew cab Duramax, Gooseneck/Fifth Wheel towing package, Summit White with black leather. runs perfect with out load. The next morning it worked normal for the 10 minutes I drove it. The injectors,injection pump, fuel rail pressure Both battery grounds are parallel, so both grounds would need to fail for total power loss as the truck can start off a single battery. 12559 posts · Joined 2009 2008 GMC Crewcab 2500HD Duramax 4X4 148k miles DPF Delete Duramax Tuner (2011) other than that, pretty much stock. If I go very light on the throttle I might go along for a hundred miles before this fuel starvation problem comes up with a "replace the fuel filter" message, then "reduced power. engineer837 aux rad, TxC CAI, LBZ MP, Scangauge II, Nicktane aux filter head, KD lift pump, 2008 PS pump, 2011 hydroboost, Frederico Swaybars, Rancho 9000XL, Torklift StableLoads, BFG AT/KO2, Lance 835 Camper often in the bed. Cleaner is only 5. NEVER ASK FOR DIRECTIONS. Showing 1 posts by redwngr. . 6L Duramax in Las Vegas a couple of weeks ago. 11•14•18. Loss of power! Jump to Latest 2008 GMC Sierra Crew Cab 4X4 (wifes) Zone lift set close to 4" 305/70/17's Hankook Dyna Pro RF-10 ATM. I noticed a sudden loss of power over the course of maybe 10 miles today. It's 100% stock. LMM sensor. no aftermarket anything. Loss of Power. I have a 2002 Silverado LB7 when going at any speed if I accelerate very hard it will start to bog With more detail maybe we can help with the loss of power. S. M. The ally appeared to go thru 3 or 4 gears normally and then the engine bogged down and lost power. Stock 2008 LMM truck, no mods. Sometimes there will be a mpg and power loss from a dirty MAF. 2005 Chevy 2500HD Duramax LLY BANKS ram air intake, MBRP 4" exhaust, CAT DELETE and NO MUFFLER, EGR Deleted, Fisher SS Chevy / GMC Duramax 01-04. 19 posts Customer: 2008 Duramax loss of power and loud whine under load and hot temps Mechanic's Assistant: Have you checked the coolant? Have you noticed any leaking? Customer: coolant is fine Mechanic's Assistant: What is the model of your '08 Chevy? Customer: 2500HD Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far? Customer: Took it I have had other duramax's before, and this is really slow. Engine power loss. I have read that a lift pump may correct this. Almost immediately the truck began 2012 GMC Sierra 3500HD dually. Going up hill fine, loses power check engine light on. the 06 is a 3/4 ton gmc extended cab. Ron Nielson. I have replace Chevy / GMC Duramax 07. any ideas? lly power loss. 5 LLY, 2X, shell, XDR, MikeL Heavy duty up-grade, 6spd, TransGo, deep pan, de-badged, 65 Gallon replacement Aero tank, LBZ-mp, Kennedy pump, shimmed, Pre-fuel filter, tow mirrors, BU cam, gauges, GPS, Sirius, bags, custom grille, fender vents, HD trans my truck started shifting funny a from 1 to 2nd at wot [like it would go into neutral] for 1 second before going to 2nd. Tigermania are you getting a throtle position sensor correlation "engine power is reduced" can't remember the code number think it was p2138 but sounds like you are having the same Addressing Reduced Engine Power. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! There is no lift pump from the factory on any duramax so the cp3 does all the pushing and pulling of the fuel. This can lead to engine damage, as Has tune but no fuel modifications. 3 posts · Joined 2024 Add to quote; Only show this user #1 · Nov 21, 2024. Some say more than they knowothers know more than they say 2008 GMC Duramax CC Dually 2002 Viper GTS Twin Turbo 2003 E46 M3 Vert. jpg. 06-07 LBZ & LLY Duramax Powertrain. After that, the first message about Reduced Engine Power came back on and stayed on. Chevy / GMC Duramax 06-07 LBZ & LLY Forums. I replaced all my glow plugs yesterday and reset the engine light. Jump to Latest Follow 1 - 9 of 9 Posts. Viper remote start and alarm. It has been black smoking and huge loss of power. 5 LB7 Duramax Powertrain LB7 Loss of power. Synthetic Fluids Mike L tranny cooler) 2008 Turnpike '05 Chev, 2500HD, CC, SB, Duramax, Allison, 4WD, bought new April '05-times up - off warranty, now 120,000 miles, LBZ mouthpeice, Blocker Plate & Unplugged EGR, Air Box cut out, lost the cat, 52 US Gal (196 Litre) Titan Fuel Tank, SuperChips tuner on Tow mode, AirLift air bags, BrakeSmart Trailer Brake controller, PaceEdwards cover, DSP Fifth alright guys my lmm is having some problems i have lost so much power its extremely sluggish and wont pick up for crap, egts are running really hot at and its spewing out black smoke allot more than it really should the most i usually get is a puff when i hammer it. 5000k HID's in lows. 5 (LBZ & LLY) Top Contributors this Month Appliance Guy 2007 Classic LBZ CC Long Bed Banks Intake w/scoop, Intercooler, BD Manifold, DiamondEye down pipe to 4" Monster exhaust, Built tranny w/cooler from Mike Lovrich at Inglewood Trans, Fitch fuel catalist, Air Dog II 165, EFI LIVE w/DSP-5 tunes from Idaho Rob, EDGE CTS, Snow MPG Max, 62 gal Titan tank, Firestone rear bags and air station, Full P2146 Power Loss and Knocking. 5 MPG Diesel Power Challenge 2008 2002 LB7 Max'd Out 9. When we left I pulled out on the highway and tried to accelerate. Dec 27, 2009 #5 I have changed the fuel filter along with housing since it needed it. Will have results in a week. Blower Causing Electrical Power Loss. Jump to Latest 9. truck suddenly reduced power. After the loss of power I replaced the fuel filer, did trans flush, break flush, and oil change. 2007. When accelerating normally to cruising speed this doesn't happen. 8M posts 220K members Since 2005 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Solenoids are also Loss of Power + Black Smoke = ??? Jump to Latest 2008 GMC Sierra Crew Cab 4X4 (wifes) Zone lift set close to 4" 305/70/17's Hankook Dyna Pro RF-10 ATM A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. 2012 GMC Sierra 3500HD dually. Lost power steering & brakes? Advise? Jump to Latest 11K views 7 🇺🇲🚛 2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air I have a 05 stock duramax with k&n air intake. It keeps getting a "reduced engine power" message on the dash, then it doesn't have any power, its like putting a brick under the gas pedal. On the level freeway it’ll continue increasing speed no problem, but any little grade, and it’ll start to drop speed. truck was black smoking very heavily at wop (w Loss of power 04. Very dangerous considering I was pulling a heavy trailer at night, in the rain, on a toll road with heavy traffic. Got the light just before the border and went into engine power reduction. Purchased from Brother in Oct. No codes other than "loss of communciation with **CM" codes in each module. It has a reoccuring problem of the engine light going on, loosing all power and knocking. Truck doesn't respond goes into limp mode. 5-05 LLY Forum. 11-16 LML Duramax Powertrain 2016 LML intermittent power loss and recovery Once each day for about 5 minutes while running at interstate speeds I had a power loss with excessive black smoke. It keeps getting a "reduced engine power" message on the dash, then it doesn't have any power, it's like putting a brick under the gas This video is an example of how we diagnose diesel drivability issues without changing a single part or guessing what the fault is. LB7: Jump to Latest 1545 posts · Joined 2008 Add to quote; Only show this user Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more! Show Less . 4" MBRP Turbo Back w/5" tip. Joined Apr 8, 2009 · 1,028 Posts Hello, I have a 2008 Gmc Sierra 2500HD Duramax Diesel with about 55,000 miles on it. I'm new to the duramax. I replaced the fuel filter thinking that was the problem, but that didn't help at all. I ask it why and the scanner shows nothing. R. Didn't the 07 and 08 have under hood fuse box connection issues in some cases causing an intermittent loss of power? M. com was founded in 2006 and created a Bought a 2008 GMC Sierra SLT 3500HD dually (32,700 miles/54,000 km. Next day happened again, no power, white smoke, then black smoke, took about a mile 674 posts · Joined 2008 Add to quote; Only show this user Came home plugged in the code reader and nothing comes up it wont even power up. 1 gas engine new fuel pump inop. • Any loss of vacuum to the MAP sensor can cause this DTC to set. I own a 2004 sierre 2500 duramax. happened a couple times ,pulled over took out programmer. Jump to Latest 1. 6L D-max, All. dealer states I must have got wrong type diesel or just bad fuel during trip prior to loss of power. ffpud Discussion starter. 1K views 1 reply loss of power while towing duramax lly. On our return I stopped by to pick up my son, I left my truck running for about 10 minutes. I bought it in June 2007 with 60,000km on it. Chevy / GMC Duramax 01-04. I can't get it out of "reduced engine power" no matter if it's hot or cold out now. " 2008 duramax loses all electrical when trying to start Thread starter motobean95; Start date May 15, 2018; Forums. 24' box trailer probably 8 or 9K. I was thinking a blown turbo but, No excessive smoke is coming out the exhaust and the check engine light is Loss of Power + Black Smoke = ??? Jump to Latest 2008 GMC Sierra Crew Cab 4X4 (wifes) Zone lift set close to 4" 305/70/17's Hankook Dyna Pro RF-10 ATM A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. I'm not making the connection between fuel in the oil and power loss. Replaced that next time out 06 Crew Cab 4x4 Duramax LBZ PPE Standard Transgo Shift Kit AFE Stage 2 Air Intake:rockin. 5-10 LMM Duramax Powertrain. Duramaxdiesels. 00 and comes in about a 15 ft long box Acceleration Loss of power, engine has 17,436 miles on it. 0. Come join the discussion about modifications, towing Hey all, stuck at work. "My 2008 duramax drops to low power mode any time I pull a trailer. 0 3500 WT DRW ExCab Flatbed, Chevy and GMC Duramax Diesel Forum. 2015. 01 Silverado Duramax. i have a 32' toy hauler. I am experiencing an issue when towing my fifth wheel. Jump to Latest 04 Silverado Duramax 07 Silverado Duramax 03 Sierra LQ4 Denali 01 Silverado Duramax 09 Silverado SCRB 2500HD LY6 98 Suburban 2004 CCSB Duramax. Save Share A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. I noticed that the problem happens when I leave in the morning, after 2 or 3 km the problem Same thing , light comes on loss of power but can feather it up to 40-50 but cant push it. Today each time i start up it prompts "Engine Power is Reduced" It feel like it has a governer on it and will just crawl up to about 40 mph. You need to pull the dtc codes to see what is causing the reduced power. Go to We strive to keep this the #1 forum for tech and information while continuing the push for new and exciting tech on the Duramax platform. Jump to Latest Chevy / GMC Duramax 01-04. At first, I thought it was a bad boost sensor and low power was contributed to the fuel filter. The u1041 is a loss of communication between the brake control module and body control module. It has a Banks 6 gun and it is showing 0 boost the whole time. 4K members Since 2005 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts My 03 boggs down and loses power after heavy acceleration. waiting on the water fuel seperator cause it was cracked when i changed out Vehicle: 2014 GMC 3500 6. The truck rarely smoked but it has started smoking excessively. Gutted DPF and welded it back up. The truck will get up to 60mph slowly, but usually won't go much past that at WOT and i only see about 5-7lbs of boost if i put it to the floor cruising at 60. 150k 08 Duramax Reduced Engine Power. A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Jump to Latest 39K views 14 replies 7 participants last post by smokinlmm Jul 10, 2012. 23. Energy Suspension Poly Im at a stop sign and get on it a little bit when taking off and got up like normal then it just seemed to lose power almost like it went to stock and it just seemed when that happened the motor sounds a little different just not like it used to cant really explain what but its different. Custom built bumper by CountryBoy2500, with 3000k HID's and Hella 500's. darkcherry08 · Registered. Don't understand how the fuel life goes 100 to zero and loses power. Hi everyone. Shortly after I bought it, while driving up a steep grade on a highway I lost all power and the instrument cluster lit up like a Christmas tree. w/Donaldson P551313 Niketane filter head w/ Donaldson This extra air will cause the air-fuel mixture to get lean, resulting in decreased fuel efficiency, higher emissions, and loss of power. Joined Feb 4, 2011 · 9,307 Posts #4 . 911 Problems Forum. 04. It will also start puffing out black smoke. GordyH Discussion starter. 6 LMM D-MAX, With a 7" SOLID AXLE SWAP LIFT, 4inch Turbo back straight pipe, Modified Allison 6 speed done by suncoast, EFI LIVE with Danville performance Tow tune & ,DPF,DOC,EGR delete Best MPG is 18, PVC re-route Filtration F. Stop for a while light off next big hill same thing. Duramax 6. I have a 01 1-ton 4x4 that I pull a 41 foot toy hauler with. When I am accelerating - most times uphill - I experience a loss of power for about 5-10 seconds, then an enormous amount of black smoke from the tailpipe. By knowing the symptoms and solutions of such issues, you can take prompt and effective action to maintain your truck’s health and longevity. Rio Grande valley 2008 lmm efi live auto cal by rob 4" diamond eye straight pipe egr blocker plate 8" fabtech lift on 37" nitto terra grapplers Chevy / GMC Duramax 07. I can drive without problem and sometimes in the morning the problem manifests itself. 6. I replaced the air filter, and cleaned the MAF sensor. How to troubleshoot intake air temperature sensor 2( IAT s Morning fellas! well my mom and dad were on their way to visit family this Christmas holiday, -45 out, cruising along fine in their 2008 LMM, and they eventually encountered a reduced engine power scenario, the DIC did not read "clean exhaust filter" at this point so when they called I immediately thought fuel filter, SO they limped the truck home for #PIP4526: Diesel Engine Fuel Line Repairs - keywords DTC hose kink loss P0087 P0093 P1093 pipe power reduced repair restrict restriction SES suction supply vacuum - (Nov 7, 2008) Subject: Diesel Engine Fuel Line Repairs Models: 2001-2007 Chevrolet Silverado Classic 2001-2007 GMC Sierra Classic 2007-2009 Chevrolet Silverado 2007-2009 GMC Sierra Just had my 2009 Sierra 2500HD Duramax serviced with new fuel filter and Air Filter yesterday. 2008 Silverado K3500HD dually CCLB 18259 posts · Joined 2008 Add to quote; Only show this user that allow Low Voltage Control Circuits to SWITCH POWER to HIGH CURRENT DEVICES by the Closing or (Opening) of Internal Contacts. It's been in limp mode ever since. Chevy 04. Step 3. Jump to Latest Michelstj Discussion starter. No engine codes have ever been thrown. MeganP2012 Discussion starter. "Big Red" 2008 Chevy Silverado 2500HD Ext Cab Long Box, 262k miles (GONE) 15 Silverado Duramax LML 2500HD 170k miles (T&D) Save Share Reply Quote Like. 3L AWD - 217k miles (wife's stock ride) Come join the discussion about duramax engines, performance, builds Low power and excessive smoking. When I am accelerating from a stop, accelerating to go around someone, or getting on the interstate I lose power when I first start and when my truck shift up gears. 2016 GMC DenaliHD Crew Cab 4WD DRW 3500, GAZ Summit White/H2Y Cocoa Dune, 5SA Denali, CF5 Power Sunroof, LML Duramax 6. 2008 GMC Quad Cab 4x4, Brown w/ Black Interior - No emissions - Stock But no more power loss. I'm looking for some info and ammo to take it back to the Stealer and get it fixed. They told me the power steering was going out at low speeds and I needed to Hi all, my 2008 GMC Duramax loses prime sometimes. 5L Diesel Engine Duramax First Generation: 2001-2004 (LB7) Duramax Second Generation: 2004. I was moving but with very little power. Trans. 71@141+MPH on #2 fuel only, MPI Twins. 12v+ on both sides of 175amp fuse. 3 KB Views: 2,032. Seems like when it is uphill, maybe just coincidence, I don't know. i dont use the truck much so over the past 6 months i changed the fuel filter, the transmission fluid, the transfer case fluid, the differential fluid, engine oil. Research indictates a fuel problem, maybe a weak fuel pump or injector pump. 73 Rear Axle NEVER BORROW TOOLS. 3. 13 posts · Joined 2008 Add to quote; Only show this user A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. (Bought new ) Modifications: Headgaskets /ARP Head studs (86k) 5” exhaust (86k) PPEI DSP5 built trans tunes (86k) Fuel system failure (109k miles) New injectors and fuel return line (109k) Hey, driving my truck to school this morning all of the sudden it got loud and the egt's dropped to nothing. 12v+ at pin 30 of starter relay. BigBlue'06 · Registered. 6 duramax with a fairly fresh Allison tranny overhaul,210,000 miles I'm getting a power loss on display and of course it don't run or pull well. Come join the discussion about modifications, towing, classifieds gm silverado (2008) reduced engine power fix#p0641 sensor reference voltage "a" cpossible causes:faulty engine control module (ecm)ecm harness is open or sho Black Smoke and loss of power. Sounds almost like a exhaust leak when under power. My 2008 Chevy 6. motobean95 New member. Tags 6. Keep getting reduced power change fuel filter. I noticed that the old filter was about halfway covered in black debris, but not quite what i Power Loss. 6L on it) Ideas? 2012 Chevy Silverado 2500 Silver. 1966 Corvette 06 Mercedes R500 AMG pkg. Have not b read more 06-07 LBZ & LLY Duramax Powertrain. Most of the information I provide relates directly to my 2008 LMM - Your truck may be a little Hey guys, a few days ago my 03 lb7 started acting up and lost roughly 50% of it's power. first time user sorry . Paul M ASE Master. I have replace both rubber fuel lines coming from the fuel filter. 02 Duramax loss of power when Accelerating. The engine light came on showing a code for mass air flow. Raptor lined rocker panels. (Lml engine ) currently 137,050 miles. 35. 5-05 LLY Duramax Powertrain no power - black smoke truck has run perfect until now. I thought I had it, the air filter was plugged and actually collapsed. Very dangerous considering I was pulling a heavy trailer at night, in Chevy / GMC Duramax 07. I only use ultra low sulfer. Pulling a 3000lb empty trailer going 70mph down the freeway the engine will stutter/cut out and lose power. 5. 18259 posts · Joined 2008 Add to quote; Only show this user #6 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Says to replace fuel filter. It feels like I have run out of diesel but it only lasts for a few seconds and then it accelerates like it should. The u1040 is loss of communication between the body control module and engine control module. Explain please. Idles and runs good, except it is slow. 5 LB7 Duramax Powertrain Lb7 Loss of power. I have an 08 durmax 2500 with about 235,000 miles on it. 2008 Silverado 2500 HD Duramax 6 Spd Allison CC/LB Black 6 CD Bose Stereo LTZ 4X4 Z71 Cargo Mgmt System LED Cab Marker Lights Integrated Brake Controller Towing Mirrors GM Contour Mud Flaps GM Chrome Bug Screen Spray in Bed Liner Polished Stainless Tube I'm currently having the exact same problem. I noticed that the problem happens when I leave in the morning, after 2 or 3 km the problem 6 Causes of Reduced Engine Power in a Duramax. Today my duramax instead of picking up and going it started to drive slowly and lost power, no check engine light came on, when I kept driving, i know this that the power was getting weaker and weaker, eventually I got to the point where i couldn't pull in to my drive way, the Hey guys, just bought my first duramax 3 weeks ago, and have loved every minute of it until today. Friend with 2006 durmax is currently having problem with power loss when towing his heavy fifth wheel. 🇺🇲🚛 2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air Use-ta Haves-->>2006-6. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! 4. He removed his Bully Dog power box and the truck is towing just fine for now. 2008 Chevy Silverado 2500HD CC/SB LMM Duramax/Allison LT LT1 Trim, Greystone Metallic, Ebony Cloth Int. also, since the OP loses power only after turning the key, the batteries must be connected to some extent or there would be no power period. 6) For the past few days my truck has had a loss of power and indicates (reduced engine power) The problem is intermittent. p2146 Power loss and knocking. Paul Clancy. 2008 743 4 18 Wasilla, AK. 4 posts · Joined 2008 Add to quote; Only show this user #1 this user #1 · Jan 29, 2008. there is a square pg tail that plugs into it I would like to back. Chevy / GMC Duramax 11-16 LML Forums. No engine codes as of now. Most of the information I provide relates directly to my 2008 LMM - Your truck I have a 2018 GMC 2500, 18k miles. Tried it on my gasser and it works. I was driving at highway speed, suddenly all power was lost and no electrical function in any system, total blackout. Seems to happen after motor gets up to temp. Jump to Latest 30K views Almost immediately the truck began throwing the P0101 code and I would get reduced engine power after running above 70MPH on the freeway for about 15 miles. 6L Duramax has been having problems with the steering for a while. 9. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! So update is no leaks to be reported what other problems could cause this problem it seems to be better than before though like she's healing or something but still a power loss. Poor performance: Damaged cylinder head gaskets can lead to a loss of compression 08 Duramax- ENGINE POWER REDUCED. Jump to Latest 1567 posts · Joined 2008 Add to quote; Only show this user #18 my 2003 chevy duramax has recently decreased in power uphill. THAT was an experience! Limped to exit at top of the hill, turned off for 15 minutes, primed again. Tags lb7 loss power Took an oil sample. drove it in reverse it cleared up. He was replacing fuel filters every 200 miles. There was a tsb from gm about snow getting into the airbox causing loss of power . 4 posts · Joined 2012 Add to quote; Only show this user #1 · Jul 8, 2012. pcv re-route, LBZ inlet and S&B, EFI Live! DSP5 powered by Edge insight CTSEGR blocked. The turbo has a significant whine. Jump to Latest Chevy and GMC Duramax Diesel Forum. 1284 posts · Joined 2005 My truck is a 2008 Silverado (Duramax 6. I don't think this is due to your trailer but possibly your tranny slipping when you have extra weight behind ur truck. Drove it back to BC Canada and had no trouble at all until I fueled up in Bellingham WA, which is possibly just a coincidence. Immediate Solutions and Resets #PIP4526: Diesel Engine Fuel Line Repairs - keywords DTC hose kink loss P0087 P0093 P1093 pipe power reduced repair restrict restriction SES suction supply vacuum - (Nov 7, 2008) Subject: Diesel Engine Fuel Line Repairs i have a 2008 gmc duramax and have had this problem since first 10k miles now 125k miles still have problem , i have spent Chevy / GMC Duramax 01-04. 18259 posts · Joined 2008 help I have a chev 2004 3500 4x4 with duramax V8 6. Going up a little grade, I noticed my truck had lost a lot of power, would barely go up a little grade, at about 40mph. 6) For the past few days my truck has 2005 HD2500 Silverado 2WD EC LB (FE9 - Federal Emissions) 115K miles Goodyear Wranglers 265/70R/17, LBZ mouthpiece upgrade, BD Exhaust, MBRP DP, Banks Ram-Air with SuperScoop ,4" SS Corsa Exhaust System w/gutted kitty, Amsoil Dual Oil Bypass Filtration, Aux Radiator (Engineer 837) installed, Firestone Air Bags, Allison extra capacity Hello, I have a 2008 GMC Sierra 2500HD Duramax Diesel with about 55,000 miles on it. From all out performance builds running 8 second ¼ mile territory, to 2000hp sled pullers and all the way back to the average guy looking to boost his performance in his tow rig to get up those hills a 6. 6L Turbo Diesel w/ Allison 6 Speed Trans, Il6-I06 Audio System 8" Diagonal Color Touch W/Navigation & Intellilink, U42 Rear Entertainment System, Z82 Trailering Equipment Pkg, Z85 Heavy Duty Suspension, UY2 Camper/5th Wheel Trailer Wiring Provisions, Y65 Driver Alert We strive to keep this the #1 forum for tech and information while continuing the push for new and exciting tech on the Duramax platform. ) with the 6. 5-10 LMM Forums. Jump to Latest 777 posts · Joined 2008 Add to quote; Only show this user #13 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. redwngr · Registered. $109 later I was back on the road. -2011 GMC Denali HD 2500 CC Standard (6. Air Filter. Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN+Companion, Ride-Rite AirEFI'd by Rob 🇺🇲🚛 2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air Use-ta AMP powerstep. please any info would 6. Intermitly it drops power and some times it will set a p0234 over-boost code. bearden auto Discussion starter. The reduced engine power warning typically (90%) comes on the DIC as well, but this is not always true. A. First time out with a load. Had to press accelerator to the floor to get in front of some traffic from a stand still. I immediately changed the fuel filter, and cut open the old one to inspect it. Jump to Latest 🇺🇲🚛 2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air (black piece that has the Duramax 6. #2 · Jul 15, 2008 (Edited) 40 posts · Joined 2008 Add to quote; Only show this user #1 · Sep 19, 2010. #2 · Jul 15, 2008 (Edited) Chevy / GMC Duramax 04. I researched and found that the K&N oil could harm the MAF Hello, 06 LBZ Crew 6. Had the CP3 replaced a few months ago - nothing absolutely spectacular but very noticeable pick up in power after replacing it. While this is not impossible, It is unlikely. 0 Reply. UBEC Test for power circuit of start relay results. Display reads "Reduced engine power" and will not rev up at all! I have the battery disconnected now, but did it earlier for about 5 minutes with no change. Jump to Latest 2016. I just had the P0087 code and loss of power as well towing on a 98 degree day with a 1000 mile old fuel filter. truck went into limp mode as you others have mentioned. Trans z-71 shortbed. 7. 2008 Duramax, towing a triple axle trailer with a 33' boat on it, total GVW is 21,800 lbs. Attachments. May 27, 2015 7 0 0. Dropped the trailer and it runs like a scalded cat. 2002 Duramax loss of power when Accelerating. Started regularly going into reduced power over DPF and long trips/regens no longer worked. Changed filters, cleared the code and drove it 225 miles in night time cool weather without a problem. 5 LB7 Performance Parts Discussion. Jump to Latest 18259 posts · Joined 2008 Add to quote; Only show this user A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Engine light comes on, all vitals ok . Step 4. Man my 02 Duramax has never given me any problems until here recently. Loss of power 04. towing with a 01 duramax hypertech and exaust. 6l Duramax Automatic 4x4. 6 engine , was climbing the hill 2008 Duramax LMM SLT ~ 93K miles Leveling kit, 285/70 R17 Quadzilla DPF Delete - 50 HP tune K&N air filter . I was towing my horse so I didn't want to take any more chance and stopped at the dealer in Eastman. Upon heavier acceleration, the air sound gets louder. 5) Bed Summit White,Leveling Kit, rear Timbrens, Bilstein shocks, 20X10 RBP Wheels, 305/55R20 Atturo Trail Blade XT tires, N-Fab step bars,weather tech floor liners and in channel vent visors ,Premium line X (black) bedliner "over rail", led running/marker lights all the way around, self installed GM roof marker lamps, Chevy / GMC Duramax 01-04. Step 2. 2L Diesel Engine Duramax Third Generation: 2006-2007. Black smoke on acceleration *Help!* Jump to Latest 77K views 42 replies Customer: Hi I have a 2008 2500 Duramax and my power steering and power brakes failed at the same time? Mechanic's Assistant: When was the fluid last checked? Have you heard any whining noises while turning the wheel? Customer: It has fluid in the reservoir and no noticeable whine Mechanic's Assistant: What is the model of your '08 Chevy? Customer: Pick up Duramax Chevy / GMC Duramax 04. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Chevy P0098 intake air temperature sensor circuit high. It doesnt cost anything at this point. It started under no load driving on the freeway about 55. I use the OBDLink MX+ on my 2017 and have Is your Chevy Truck losing power under acceleration? Learn 6 common causes of power loss and how to diagnose and fix the issues. Idles good, no check engine light, nothing shows up on the scanner, I have a block plate in, a aftermarket exhaust and intake. Worth a shot. 5 LB7 Duramax Powertrain Loss of power under load though, you might also consider a boost leak test. 8M posts 218. I have a 2002 Silverado Duramx when Accelerating it will bog, it will run down the road fine at any speed 6. The air filter is another seemingly trivial component that can reduce the power of your Duramax engine. I bought a new MAF sensor and also dropped the fuel tank, replaced the fuel filter and got the computer flashed at the dealership I need some help with my 2005 Duramax. i believe it has the same engine and transmission as the 07 1 ton chevy. Joined Feb 18, 2008 · 42 Posts 06-07 LBZ & LLY Duramax Powertrain. 6 Technical. There are immediate solutions to potentially reset the warning, as well as long-term maintenance strategies to prevent future occurrences. In this example the truc Major Power Loss. the 06 is the one that acts as if the fuel filter is plugging up, and after the mechanic changes the filter and saying the problem is fixed, 30 minutes later it is doing it again. 4 posts · Joined 2024 Add to quote; Only show this user #1 · Nov 21, 2024. Truck started and drove fine. Installed mini maxx tuner and thought that little mess was over. 18259 posts · Joined 2008 Add to quote; Only show this user Start with a new fuel filter-- the Duramax need a good supply of fuel to operate. Has 102,000 miles currently. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! You are assuming the engine power reduced message is dpf related when it very possibly is not. Replaced it with no change in power. Jump to Latest Most of the information I provide relates directly to my 2008 LMM - Your truck may be a little (or a lot) different 2008 Silverado LT, Crew Cab, 2WD,LB A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. I have a 2008 Chevy 2500 dura ax diesel 6. 40 amp fuse test good but only will receive power once starter relay is energized. Jump to Latest 127 views 6 replies 2 participants last post by OkDually Nov 21, 2024. last weekend while towing my truck lossed power dead petal,let it slow down then regained power. Fast forward around 15 minutes the truck turns into a turd with no power and the It was negatives when it actually flashed a code and went into reduced engine When the problem occurs, start shaking the battery wires, wires to the fuse box, Recently my 2008 GMC duramax has suffered a devestating loss of power, My truck is a 2008 Silverado (Duramax 6. 6 duramax reduced engine power. Around the beginning of 2014 I purchased EFI Live, and a 4" straight exhaust (DPF delete) from ATP. I have done nothing different to the truck since the loss of power. Changed the fuel filter and it ran out like water when I emptied Fuel injector issues can cause your duramax to blow white smoke, lose power, and compromise your driving experience. I reset disconnecting batteries each time but same problem. Jake creates a ton of GM related content for the 8020 Media YouTube channel and 11•13•18. Tinted to match and tow mirrors. aFe Power Magnum FORCE 51 Loss of power. Acceleration only, dealer checked last 2008 gmc c5500 w 8. or Immediately after some work done to my '06 Duramax at a local service garage, I noticed a loss of power during acceleration, and the check engine light on. 5-05 LLY Duramax Powertrain Urgent!! Limp Mode, power loss, code P0299 2008 Silverado Lmm 5in Exhaust EGR Delete, EFI LIVE 190K miles that can cause a loss of power. still happened but not as often. 0 volts between pin 30 & pin 87 but 12+ volts between pin 30 & chasis ground. I had already been running a K&N drop in filter but not for very long prior. 5 (LBZ & LLY) Top Contributors this Month Chevy / GMC Duramax 01-04. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and the loss of power when towing is on teh 06. or Loss of Power. Might be worth looking on a 2008 6. Proud Illinois Diesel Power Member #42. Hopes to make it home to complete a "fix". Jump to Latest 218 views 4 replies 3 participants last post by DMAXfirefighter Nov 21, 2024. new to the world of diesel Pickups. 04 GMC Yukon XL 2500 with 06 LBZ - 209k miles (stock 🤣) 04 GMC Yukon SLT 5. Step 1. ASE Master Tech LML Pop then gush of wind loss of power. 3 posts · Joined 2008 Add to quote; Only show this user #1 · Jan 28, 2008. 2005 Crew/mostly stock Exhaust and fingerstick only new fuel filter just a 01 Duramax loss of power. I ran into this Duramax with no check engine light. A dirty throttle body causes power loss because it restricts the engine’s airflow. The complete assembly is about $400. I was driving my 2008 Chevy 2500 drama and the "clean exhaust" and reduced engine power was displayed so I drove it at plus 30 for over 20 minutes and the clean Had with a bone stock 09 LMM, @130k. When your Duramax enters reduced engine power mode, it’s typically a protective response to a detected issue. F. 2008 Silverado K3500HD dually CCLB Loud pop, lots of black smoke, loss of power, help. jfcert ykofeb jhxehg dndzwzw cqrovi oqiu sgns xqjqyu dvbez ptlod