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International Automotive Technicians Network
Re: Old C7 Acert CAT
Posted to HD/Fleet Forum on 4/12/2025

Hello Stephen, How's the competitive knitting going? I remember a symptom like this in the past. No codes, no problem starting, but just sitting there idling, the rpm's bounce all over the place. I have found the engine coolant temp connector(driver side, mid ... Login to read more.