Start up screeching noise
Hello fellow ford drivers!
I have a 2000 Ford Explorer Sport, 4.0 SOHC, 150,000 miles.
Last week I replaced the alternator and the serpentine belt. As soon as I put everything back together, there was a loud screeching noise at start up every time unless the car has been running for 20 minutes or more. The noise only lasts for a few seconds. The only thing that changes was a new belt and alternator. I drove he car back to the auto parts store, because I was thinking it was the new alternator. They said it could be the a/c clutch. The new alternator w is a remanufactured unit from Autozone. I have since replaced he belt tensioner thinking that could be the cause, but no luck . Can anyone share their opinion on what is causing the screeching?