Sound From Bonet

[AJAG]

I have a Toyota Auris TR Automatic 1.6, 59REG I bought it when it had done 16k miles, under the Toyota used car warrenty from a Toyota dealer. Today, I took it just to get around the corner to co-ops and there was a horrible sound as if, there were 2 metal plates rubbed against each other and it went on untill I got to co-ops , I parked and opened the bonet to check if I could see something moving but couldnt see anything nor was the sound that audible, so realised the sound came only when I accelerated , wonder what this is any ideas?

[Mooly]

You need to pin it down a bit more... and first thoughts are either a slipping drive belt (as alternator is heaviliy loaded after starting) or something like a stone caught between the brake pads and disc.

Does it vary with engine revs ? In other words is it different at say 30mph in 2nd, 3rd, 4th or 5th or is it constant and independent of revs.

[AJAG]

Yeah the more you accelerate the worse the noise gets

[Mooly]

So is it road speed or engine speed dependent ? It's an important distinction. You can accelerate by freewheeling down a hill. Would it make the noise then ?

If it is under a warranty then perhaps ask the dealer to take a look.

[AJAG]

yeah taking it to the dealer tomorrow..cheers!!