My 2002 Duramax has diesel in the oil and rough idle at 112,000 miles. Dealer said needs injectors and that the injector pump gate valve is stuck open. they want about 6-8 k to fix including the pump and are offering $5500 as is for the truck. Is it worth repairing?
Looking at doing the job myself:
1. where to get and what injectors to use
2. what else to replace while apart
3. does the pump gate valve make sense; i have not read anything about this
Dont mean to beat the horse on this but would appreciate some guidance