V6 whine when warm

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bukko

Well-Known Member
Full Member
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1,521
Location
Somerset (but I'm a Landanna)
Can't hear it at all when cold, gets louder until it's louder than the engine.
It's rev based, but could still be from the gearbox.

I'm thinking it could be:

1. Auto Trans Fluid. Solution: change ATF.
2. Aux belt has stretched and stretches more when warm allowing a worn pulley bearing to whine. Solution: replace belt and pulley

Or something else. Any suggestions?
 
Cam belts can whine sometimes, especially cheap belts. The gearbox pump can whine if the fluid level is low. The alternator can also whine when it's warm.
Good luck ;)
 
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