What was the problem with my GMC Duramax?

The first 2 hours of the drive passed without incident, but at the 3rd or 4th stoplight, immediately after I told my wife the problem seemed to have been resolved, the light turned green and the truck couldn’t get up to speed. Happily this happened almost at the gate to a storage facility so I backed the trailer up the road and stored it.

What causes a Chevy 2500HD to lose power under load?

Probably P0087. Check the fuel hoses at the side of the trans– they can get kinked, weak and collapse. I’ve just experienced a very similar situation with my 2005 2500HD. After driving about 2 hours, over varying terrain, I had to stop at a light (not the first on the trip).

What’s the RPM on a 2005 GMC Duramax?

Check out the thread “2005 6.6 max rpm 2000”, there are some suggestions there. Also search for the “ice pick trick” as it is one of the suggestions that often comes up for this problem.

As noted in earlier posts, have had the entire DPF/DEF system replaced at 113k miles on my 2014 after having 3 aborted trips and same amount of revisits to the dealer $6.5K. Nothing under warrantee. Primary problem was DEF module was not properly injecting DEF fluid when going up hills .

What do I need to know about my Duramax Diesel?

Engine , Transmission, Etc. Postings of Tech Service info for any New L5P engine issues. Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

Who are the moderators of duramaxforum.com?

Duramaxforum.com, and it’s moderators/staff are not responsible for anything that is traded, sold, stolen, not payed for, or anything else that happens in this section. If you choose to trade or buy from anyone on this forum you do so at your own risk. Please use good judgment and common sense when you enter this section.

What kind of lubricant does a Duramax diesel use?

Discussion of diesel, its various additives, oils, lubricants and alternative fuels IE: Bio-Diesel ect… Discuss the Allison OEM, aftermarket, and the ZF-6.

When did the LMM Duramax diesel engine come out?

The LMM Duramax refers to Chevrolet Silverado HD and GM Sierra HD trucks equipped with the 6.6L Duramax diesel engine between the years of 2007.5-2010. It was very similar to the LBZ, but it featured an all-new emissions device, a diesel particulate filter.

Is the LMM Duramax the same as the LBZ?

It was very similar to the LBZ, but it featured an all-new emissions device, a diesel particulate filter. While it reduced emissions output drastically, the DPF system on the LMM resulted in these trucks having terrible fuel economy.

How many horsepower does a GMC Sierra Duramax have?

2008-2010 GMC Sierra & Chevy Silverado HD 6.6L LMM Duramax Specs Manufactured Years: 2007.5-2010 Fuel: Diesel Fuel Tank Size: Short Bed: 26 Gallons Long Bed: 34 Gallo Max Engine Speed: 3,250 RPM Horsepower: 365 horsepower

How big is a 6.6 liter Duramax engine?

2008-2010 GMC Sierra & Chevy Silverado HD 6.6L LMM Duramax Specs Manufactured Years: 2007.5-2010 Displacement: 6.6 Liters or 403 Cubic Inches Engine Weight: 835 Lbs Bore: 4.055″ or 103 mm Stroke: 3.897″ or 99 mm