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I did an oil change prior to the most recent one, at about 200 miles, using Penzoil Full synthetic and 1 bottle of Ceratec and the noise went away. I thought that the problem was solved. So to see if it was, at 3000 miles I had a free dealer oil change and they used Motorcraft Full synthetic...

Thanks, I'll give this a shot when I get a chance.

I've seen this also and was ruled out. This noise is from the front of the valve cover on the passenger side. Used a stethoscope to verify it.

Thanks for the responses, the noise starts after the car idles down from a cold start, it will not go away after it warms up. I did use ceratec and it helped a lot. But after my oil change the noise came right back. The noise increases speed when you rev the motor and disappears under the...

Hi All, I've been a member for a while but have never posted. Normally I have found the answers to my questions searching forums. I currently have a 2020 Mustang Gt I purchased new in 10/2021. I have had this tapping noise coming from the passenger side valve cover. I believe it's a lifter tap...