strange noise at 75mph

[ecoslion]

2am last night i was coming home and heard a strange noise while on the m25. i was doing between 72-77 mph contantly from junction 8 til clackett lane services when i heard a very stange noise which i could only describe sounds like the noise thats made when you rub your finger on a wet window, like a higher pitched humming noise.

the noise only happened at this speed at about 3100-3250rpm at light throttle (5th gear).

the noise went away if i floored the throttle but came back once i came off. i changed down into 4th too and it went away.

i wasnt sure if it might have been somehting to do with the steering so i did a bit of weaving but there was nothing strange there.

once i reached the A21 it disappeared.

the car is a 1999 VTR with 55k miles

any ideas??

[SaxoAL]

Must have been the M25 mate, if it disappeared at the A21.
I will check if mine does it when I next go along there.. smileys/smiley14.gif

Other than that, All I can suggest is it may be something to do with the gas somewhere.
Accelerator cable, but that would prob do it throughout the range.
Weird one that.

[andy51086]

sounds like the wheel bearing

[al_VTR]

i was along that stretch of the M25 twice over the last week & i didn't notice any unusual noises (apart from my loose exhaust!)

[grantsmith1985]

Or dont speed and and stick to 70. Nah im only joking. Try recreating the sound at different speeds doing different things like how you accelerate or something.

[kopking]

Ecoslion,
Did ya have loads of weight in the car? Or even a tad more than usual? Its possible your getting early signs of CV joint / driveshaft. I had exactly the same. I regreased all concerned around the drivers front wheel and it went away........ for a week and then driveshaft is screaming like a bitch. Changing it today.

[w_jd_w]

might be a wheel bearing.i used to get a strange noise from 60-65mph.i changed my back wheels with my front ones and the problem disappeared smileys/smiley14.gif