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International Automotive Technicians Network
Re: Misfire on cold start
Posted to Technical Discussion Forum on 1/23/2021

I had always read that there was no AFM on 4.8 or 6.0, guess I learned something new then. If you comfirmed that there was proper rocker arm movement when cranking cold, does this change diagnostics any? I haven't tangled much with AFM problems. Login to read more.