Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Which engine is in that truck, LBZ (8th digit on VIN "D") or LMM (8th digit on VIN "6")?
Two different 6.6L engines were used on trucks made that year; which of those is in that truck, LBZ (8th digit on VIN "D") or LMM (8th digit on VIN "6")? How about the truck's VIN, do you have that?
I'm sorry for the confusion, you're absolutely right in that it is a Medium size truck. GM put the same engines in some of these as they did in the pick-ups, as is it happens to be the case on this particular truck where the 8th digit of the VIN ("2") identifies the engine as a LMM Duramax.
The LMM suffers from a bad filter housing design where the "O" rings used to seal it deteriorate and cause no-starts. New assemblies can be purchased for less than $130 on ebay (click here for example). The filter assembly can be replaced in about an hour - please let me know if you need detailed instructions on how to do this and I'll upload those for you.
Are you saying the new primer pump that comes as part of the assembly is not working?
What happened? Did I lose you?