Serpentine belt tension?

[T-Cut]

Ah OK. The interior blower is irrelevant to almost everything that's going on in a car except its own job.

TC

[Mike Noc]

Originally Posted by Mike Trident

I am guessing this is going to be a process of elimination, starting with a new belt and tensioner.

I'd start with a new belt Mike, and worth replacing the air con belt while you are there.


The tensioner itself is a bit more tricky to change with the engine in situ, and they aren't known for failing either. If you have changed belts before, then you will have a good idea as to how tight a good one is and can check how it feels when you change the serpentine belt.

[Mike Trident]

Originally Posted by T-Cut

Ah OK. The interior blower is irrelevant to almost everything that's going on in a car except its own job.

TC

True! But it also uses a lot of power which will make the alternator harder to turn, along with the power steering pump working really hard as it approaches full lock. All these factors could make the belt slip a little on the crank pulley.

I have just been out to the car to try and replicate the conditions, but with the bonnet open. Nothing! Some things are just sent to test us I guess.

The belt actually looks new, but I will replace it and see what happens.