tapping noise at idle

Dreadnaught · 11-08-2017, 04:22 PM

Quote:

Originally Posted by Z_ealot

Seems to switch from right to left sometimes, but yeah most often from the top right of the rear of the engine

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When I first got my Z I heard a tapping coming from the rear of the right side head. I thought I had a valve train issue. It turned out to be purge control valve. That's what you may be hearing. I could hear it if I was standing on the left side of my engine bay but it was a little more quiet. You can put your finger on it and feel it pulsating for every tap.

I think if it was an oil pressure issue you would possibly have advance and retard issue for the intake cam since they are driven by oil pressure.

Hope this helps, I can only do so much over the interwebs.

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