What are the problems with a Duramax diesel engine?
Both of these issues result in fuel leaking from the injector which can then enter the crankcase. This can lead to more serious problems, as diesel fuel doesn’t offer the same lubrication properties as oil. You’ll also experience loss of power, excessive smoke, rough idling, and engine misfiring.
What are the most common 6.6L LB7 Duramax problems?
What Are The Most Common 6.6L LB7 Duramax Problems? The LB7 Duramax engine made its debut on Chevrolet and GMC HD trucks in 2001. 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.
What causes a Duramax crankcase to leak fuel?
The ball seat can deteriorate over time, resulting in an incomplete seal, and ultimately, injector leaking. Both of these issues result in fuel leaking from the injector which can then enter the crankcase. This can lead to more serious problems, as diesel fuel doesn’t offer the same lubrication properties as oil.
Can a leaking O ring cause a Duramax to hard start?
If you’re going to own an LB7 Duramax over an extended period of time, the odds are you will experience this problem. A leaking o-ring not only results in a fuel leak, but air can also enter the fuel system. This causes various performance issues, hard starts, and even engine codes.
When was the LMM engine installed on a Duramax?
LMM (VIN “6”) Engine was installed from 2007-2011. LML (VIN “8”) Engine was Installed from 2011 to current. To determine the correct part number and configuration available, please gather the VIN (Vehicle Identification Number). Depending on the model this may be all that is needed.
Both of these issues result in fuel leaking from the injector which can then enter the crankcase. This can lead to more serious problems, as diesel fuel doesn’t offer the same lubrication properties as oil. You’ll also experience loss of power, excessive smoke, rough idling, and engine misfiring.
When did the Isuzu Duramax engine come out?
The Duramax engine is a joint venutre of GM & Isuzu. LB7 (VIN “1”) Engine was installed from 2001-2004. LLY (VIN “2”) Engine was installed from 2004-2005. LBZ (VIN “D”) Engine was installed from 2006-2007. LMM (VIN “6”) Engine was installed from 2007-2011. LML (VIN “8”) Engine was Installed from 2011 to current.
How is a Duramax engine remanufactured in the USA?
Assembled in the USA. Blocks and crankshafts are 100% magnaflux tested to avoid cracked components. Aluminum cylinder heads are dyed to check for cracks.Crankshafts are checked for size and micro-polishedto OEM specifications. If necessary, it is re-ground re-nitrated and micro-polished to OEM specifications.