e85 z4 3.0 tweeting from front end

dougisme

New member
All, after some advice..

I've been getting a chirping/ tweeting from the front end (Or so it sounds)..

She's a 2003 3.0 E85, as at first I thought it was a bearing/pulley squeak I went ahead and changed the below:

Air Con Belt
Main serpentine belt
Water pump (ball ache but I managed it in the end)
Deflection pulley
Idler pulley
Drive belt tensioner (retrofit hydraulic)
Air Con tensioner
Thermostat (yeh it doesnt spin - but while I was doing the rest it seemed sensible).
I did a full oil change and filters the other weekend.

When at a standstill I get the chirp occasionally (If I rev it up fairly hard it may chirp briefly).

Normally on fairly rough roads and maybe takes 5-10 mins from cold before it starts - but is not constant... for example if Im in a position I can stop and get out and listen... it doesn't happen, however when driving down a busy street full of people with the top down - it loves to make an appearance. If its tweeting and I hit a bump, it does chirp louder for a sec, then settles down to how it was.

Seems to cover the rev range without any significant pitch change all the way from 1200 - 300 RPM.

When driving I can drop the clutch and the tweet remains, I can apply the brakes and the tweet remains. I can throw it round a corner and the tweet remains.

Engine seems to run smooth at a standtill, in neutral or the clutch down, no masssive vibrations or wonky feelings.

Its on about 117k (Albeit around 10k are in the last few months as work has meant a few months of big time driving of late)

If anyone has had this or knows what it is likely to be it would be very much appreaciated as it is driving me crazy....
 
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