its a 1990 z71 with a 350 throttle body

Asked by Sep 05, 2014 at 03:56 PM about the Chevrolet Silverado 1500

Question type: Maintenance & Repair

theres a lifter in my 1990 z71 it will make noise then it will stop after awhile whats the
problem i was told the oil was ad it would fix it if i changed but it still does it

2 Answers

97,215

Most likely the lifter has a varnish build up, you could put a quart of Marvel Mystery oil and run it for a while to see if it will come out of it. But you most likely wind up doing a lifter job.

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thanks

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