Ford Mustang 2002 Squeaks after serpentine belt replacement?
I'll bet 50 cents you used an aftermarket belt. I have found the aftermarket belts are more likely to squeak than a genuine Ford Motorcraft belt. Ensure the belt tensioner, idler pulleys and all accessories are good and all the pulleys are clean and free of any contamination. Verify it is a belt problem by pouring some water over the belt while it is squeaking to verify the condition. If it changes the sound, or temporarily makes it go away, look harder at the belt and all surfaces it touches.
Ford Mustang 2002 Squeaks after serpentine belt replacement?
try some belt dressing can be purchased at wal mart. It could be also that the new belt is putting quite a bit more tension on something. The belt tensioner itself maybe.
I know exactly what the issue is here - you need to replace your serpentine belt idler pulley - it's the one you had to take the tension off in order to put the belt on. Likely what has happened is that you put the belt on the proper way but rastling with the pulley may have dislodged some rust or dirt which caused the bearing to become gritty. most of these pulleys are plastic so dirt can wear them out pretty quickly. try taking the pulley off and see how the bearing feels - if it spins freely, it;s fine, otherwise replace it. The other thing you need to check is that the belt isn't sitting crooked on the system. make sure that the belt is running in it's proper grooves and that it is not sitting over the edge of one of the pulleys. hope this helps!
I have 3.8 Mustang that had this problem for a long time before I figured it out. Start with checking the idler pulley, however that was not my problem. it has a part called a cam angle sensor. It takes place of the distributor. it is located at the top front of the engine. Instead of a distributor cap it just has a small cap about the size of an old electric choke. It mounts and adjusts just like an old style distributor, with a shaft and gear. If you pull it out(just like removing a distributor) make sure you mark it first and reinstall it exactly like it came out. You can get a new one at an auto parts store, listed under remanufactured distributors. You will need a special alignment tool to install the new one. I got the tool online from OTC tool company.
i believe the tension on your belt is off a bit,the idle pulley if it is seized up will make a whistling noise and not a sqweaking noise
