Quote:
Originally Posted by BlackJack
are you SURE that they're saying to change the valve springs and not the lifter springs?
hydraulic lifters are hollow with the ball socket that traps the oil inside, and it's the pumping action that keeps the lifters primed, but when the springs inside the lifters get weak, they don't pump/prime efficiently, which in turn gives more slop in the valve train. I'd think if it happens at idle, the lifter springs would be more suspect than the valve springs. Just my opinion though.
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Probably, I'm stilll learning so mine is getting pretty loud so I think new lifter springs should be done soon to my car but since I'm going down there I'm going to research if there is anything else I should replace or do.