T180 Wah Wah Engine Sound

[Paul Gailey]

I don't know how best to describe it, but the engine has developed a sort of wah wah revving sound, that so far has not had any adverse effect on fuel consumption or driving behaviour.

(I may even record it and attach the sound if I can isolate the sound whilst driving)

I wonder what it could be and if it forebodes?

[Red Yaris 54]

I don't know how best to describe it, but the engine has developed a sort of wah wah revving sound, that so far has not had any adverse effect on fuel consumption or driving behaviour.

(I may even record it and attach the sound if I can isolate the sound whilst driving)

I wonder what it could be and if it forebodes?

Does it go " Bop she Bop Bop" on the chorus? ;)

Posting a sound bite may help identify

[Brian Roly]

Post moved to RAV4 board

Edited April 6, 2014 by Devon Aygo
Incorrect board

[Paul Gailey]

Dealer inspected it. Said it's wheel bearings. I don't know their typical fail rate. About 250 EUR to repair!