Quote:
Originally Posted by key_lime
Hi Boxstard,
The issue you describe sounds very similar to a noise I’m experiencing. I also have a 1997 2.5L.
Every time I ‘feather’ the throttle, either gradually on or off, I hear a distinct ‘chatter’. Full throttle / No throttle and the noise disappears. Most of the time I hear it when attempting to maintain a steady speed when cruising, but it's amplified at high RPM's when easing off the throttle after a hard acceleration (when joining a motorway for example).
Interestingly, unlike you - I can replicate the noise with the clutch fully depressed and the car stationary, by carefully holding the revs around 2,500 RPM and slowly feathering in a little more gas. Are you sure you can’t achieve this ?
I’ve just had my front engine mount changed (for unrelated reasons) which made no difference to the noise.
Did you ever find a root cause?
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Still chasing the root cause... and I could not reproduce the noise with the car parked, clutch in or out, no matter how I tried with gentle throttle around the ‘sweet spot’ of 2,400 rpm.
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1997 Boxster arctic silver/ red, XNE riveted mahogany/ leather steering wheel & 917-style wood shift knob, Ben’s short shifter, PSE, 996 TB, UDP, stereo/ center console delete, hardtop and speedster humps, daily driver rain or shine or snow!
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