I have this nasty squeeking coming from under my hood. It is when you apply throttle. When it is idling or you are offof the throttleAt first I thought it was a bad belt. As a result I replaced the belt. Didn't go away. Next Thought was a bad pully. I replaced both idler pullies as well as the the tensioner pully. The noise is still there. Any thoughts?

 

Year and model, how many miles on the truck?
Need to look at your alternator bearings as well as the a/c.

 

99 Disco 2. I know there is a problem with the AC bacause when I turn it on I get noise. I am currently waiting for a new compressor to arive. Should be here today. After that is on I will look into the altenator bearing. Can you buy juust the bearing or do you have to buy the whole thing.

 

Hey, you are driving a Rover, no bearings only. If you look around you may find a good shop to rebuild your alternator, I like doing that better then buying a reman or new one.