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International Automotive Technicians Network
Re: 03 Duramax LB7 fuel in oil
Posted to Technical Discussion Forum on 8/27/2025

Waiting for the customers to find his receipts of what work has been done already, in the meantime I'm going to try to do a better injector return test. Believe it or not this truck only has 78,000 miles on it and going by the inspection and Lube stickers it's... Login to read more.