Quote:
Originally Posted by pilot4fn
Check if all spark plugs are tight (to torque spec).
If one comes a bit loose, the pressure leaks out just a bit and makes thsi kind of noise that changes by rpm - ususlly shows up only as the engine is hot / normal operating temperature.
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Thanks! I think that was it. All of mine were loose. I retorqued them and the noise is gone.
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Steven
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1975 914-6, 3.5l
2001 Boxster, 2.7l
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