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Re: What causes repeat GM AFM lifter failures?
Posted to Technical Discussion Forum on 9/28/2021

Sorry I did not explain that very good. I had 50psi at the filter and 42psi at the oil sender port @142*F at idle. I know what you mean where it says 6psi hot at 1000RPM. The test is for the relief valve Which appears to be leaking. Its in Prodemand under: oil... Login to read more.