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Re: Valve Adjustment '99 5.7 vortec.
The valves are not adjustable.
But if a valve lifter noise check rocker arms and push rods for wear and or for a rocker nut backed off.
Also for a broken valve spring.
When do you hear the noise?
Start up or cold or hot or all of the time?
Just one side ot both?
Good clean oil and AC Delco oil filter?
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Remember proper testing gives us the answer to many problems.
MT
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