
Re: 5.3 oil pressure and noisy lifters
I am not privy to that. The only o-ring I know of is pick up tube to pump. I have done lots of pumps lately and I haven't seen a o-ring behind the pump. And if memory serves me even in the non AFM there is no o-ring back there. But I haven't done a nine AFM li... Login to read more. ![]()
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