little smoke at idle
#1
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Member Since: Jul 2007
Location: chambersburg pa
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little smoke at idle
Im getting a little smoke at idle. I took the oil cap off and didnt see any smoke. I replaced the pcv valve and installed a catch can but still get a little smoke. If i rev to about 3000rpm i get alot more smoke. How can i tell if its the valve seals or the rings?
#4
Melting Slicks
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Valve seals generally make the car smoke when it is first started. Rings would cause smoke while running. First do a compression test. All readings should be within a few pounds of each other. If one or more cylinders is low you have a problem. You can squirt some oil into a cylinder that shows low compression and then recheck its compression. If it comes up then you have bad rings. If it stays low then it is valves.
#5
Tech Contributor
Valve seals generally make the car smoke when it is first started. Rings would cause smoke while running. First do a compression test. All readings should be within a few pounds of each other. If one or more cylinders is low you have a problem. You can squirt some oil into a cylinder that shows low compression and then recheck its compression. If it comes up then you have bad rings. If it stays low then it is valves.