Sometimes Tapping at idle

shoyam

Registered User
I have 90 T-bird SC auto. After it warms up it starts to tap at a idle but not all the time. It taps for about 30 seconds then goes away for about a minute then comes back. If you hit the gas it goes away. I tried adding some sea foam but no luck. It sounds like it is coming from the driver side valve cover. Anybody ever have this problem? Thanks
 
I have 90 T-bird SC auto. After it warms up it starts to tap at a idle but not all the time. It taps for about 30 seconds then goes away for about a minute then comes back. If you hit the gas it goes away. I tried adding some sea foam but no luck. It sounds like it is coming from the driver side valve cover. Anybody ever have this problem? Thanks

sounds like a collapsing lifter.
 
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