Chain noise?

[key_lime]

Originally Posted by Boxstard

... I am hearing what seems to be chain noise when giving very little throttle at low rpm....

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?

[Gilles]

Originally Posted by key_lime

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 ?
Did you ever find a root cause?

Keylime,

Perhaps the noise comes from within the muffler (loose shield) or failing cat..?

[Boxstard]

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?

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.

[robdelorenzo]

FWIW-black silicone holds the mesh windscreens securely. Isolating that noise took a while!