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Re: GM 4.2L variable valve timing
Posted to Technical Theory Forum on 5/30/2007

Hey Jim

Good to hear from you. This truck had a real bad idle/stall. Unpluging the solenoid made no difference. The waves are from before and after. Wish they could have been longer, but a vantage is all I got. (Never thought I'd hear myself say that!) We se... Login to read more.