What year Duramax has problems?
The 2001 to 2016 Duramax diesel is largely susceptible to fuel starvation, air in the fuel lines, and difficulty bleeding the fuel system.
What year Duramax has head gasket problems?
These are both relatively common problems you might expect to deal with on the 2001-2004 LB7 Duramax, but you can rest a bit easier knowing the aftermarket has had a decade to develop and perfect the parts you need to correct it. It’s now better than it was from GM.
What was the best year for Duramax?
2006-2007 2500 & 3500 Perhaps the most desired of all Duramax models are the ’06-’07 Classic body style trucks.
How many miles can you get out of a LB7?
As we said earlier, the LB7 powered HD Sierras and Silverado’s are very reliable, and many you’ll find on the market have well over 300,000 miles on the original engine.
How long does it take to put injectors in a LB7?
A lot of people choose to replace the injector cups (which involves draining the coolant, then using a puller to remove them), as it usually only adds a few hours of additional labor. With replacing all eight injectors being a 12- to 14-hour job, it’s cheap insurance.
How do you tell if a Duramax has a blown head gasket?
If your temperature gauge suddenly starts running colder than it always has, you may have a head gasket problem. The quickest and easiest way to check for combustion pressure in the coolant system is to squeeze the upper radiator hose while the truck is running.
What are common problems with the LB7 Duramax?
The 5 Most Common LB7 Duramax Engine Problems
- Fuel Injector Failure.
- Water Pump Failure.
- Fuel Filter Housing O-ring Leaks.
- Blown Head Gasket.
- Overheating (fan clutch problems, radiator gunk)
What are some of the most common problems with the Duramax?
9 Common 6.6L LB7 Duramax Problems. 1 1. LB7 Duramax Injectors. The most notorious LB7 Duramax problem is their original injectors. Even GM acknowledged their problems when they corrected 2 2. Lack Of A Fuel Lift Pump. 3 3. Fuel Filter Housing O-Ring Leaks. 4 4. Water Pump Failures. 5 5. Overheating.
Do they still make Duramax diesel engines?
These diesel engines are where the Duramax started, and they have been so successful that the Duramax are still used in GM HD trucks today. As successful as the 6.6L LB7 Duramax was however, they do have their fair share of problems. The first Duramax was far from perfect.
Are there any problems with the LLY Duramax injectors?
In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 ½ redesign, but the LLY Duramax would occasionally exhibit a trouble code for the injectors, but in most cases it turned out to be an issue with the injector harness rubbing through and causing a short or open in the wiring.
Are there any problems with the LMM Duramax?
Mechanically, the LMM Duramax is almost identical to the LBZ, and if you do a quick search of the web for LMM Duramax problems, you’ll find much like the earlier LBZ it had very few problems related to the engine itself.