while idling at engine temperature, I'm experiencing lifter tick coming from #1 and 4 cylinders what are the possible causes?
Jan 21, 2010 at 9:56 PM
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KHLOW2008
CAR REPAIR CONTRIBUTOR
41,814 POSTS
Hi johnboy57,
Thank you for the donation.
If the noise are from the valve lifters, possible causes are :
1. Excessive valve clearance.
2. Abnormal wear on the camlobes.
You would need to remove thge valve cover to inspect the camshaft lobes and measure the valve clearance.