Tapping when engine started. Stops after few seconds. Happened two months ago one time. Never again until today.
Jan 5, 2018 at 1:44 PM
Tapping when car is started, stops after a few seconds
2009 CHEVROLET COBALT
CORINNE KOWALSKEY
- MEMBER
- 1 POST
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ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Good morning.
If it is a valve train noise, it could be a tuck lifter. Using a product called sea foam to try and break down the varnish in the lifters.
the other possibility is the lower end that has the bearings. If there is excessive clearance or the oil pump is weak it will also cause the issue.
Roy
If it is a valve train noise, it could be a tuck lifter. Using a product called sea foam to try and break down the varnish in the lifters.
the other possibility is the lower end that has the bearings. If there is excessive clearance or the oil pump is weak it will also cause the issue.
Roy
Jan 6, 2018 at 4:47 AM
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