2002 Duramax code P1093

Plumbed1

New member
May 18, 2015
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0
1
Ok guys, I have been reading every post possible trying to determine what I need to do before I replace my injectors. For the record, I just purchased a 2002 Chevy Silverado 3500 with the LB7 Duramax. It has 153,00 miles on it and the first set of injectors were replaced, by Chevy, at 84,000. I paid $9500 for the truck as it is a dually with a 11 foot service bed. I followed the advice of many of you and started from the beginning. I filled the truck with Chevron diesel and poured two bottles of Sea a Foam in each tank. I changed the fuel filter. I checked all the vacuum lines and all the electrical connections. I performed the oil on white paper towel test to determine if there is fuel in my crankcase. There is. I have no loss of power while towing a load with the service engine light on but have noticed a considerable drop in oil pressure. The truck starts up right away, cold or hot. It does not smoke, white or black. So...what do you guys suggest I do next? I'm prepared to absorb the cost of injector replacement but need to be sure I am spending my money on the right problem. Please advise.
 

rfletes79

Active member
Mar 5, 2010
649
165
43
Galt, Ca 95632
Have you done a balance rate? That would give you a good idea of how the injectors are. Also keep in mind the return lines are in the valve covers which if leaking would do so right into the crankcase.
 

Plumbed1

New member
May 18, 2015
6
0
1
This is my very first Diesel experience. I am willing to purchase the necessary tools for repair but do not want to purchase what I don't need. Please advise on what is required for the balance test and how I perform one. Thank you.