Thread: how do you stop belt squeaking?

they have belt dressing at any local parts stores.... or use a little WD-40. this is what I used... and it did the trick.

spray it on both side of the belt....

CRC makes some belt dressing.

I just had to deal with a belt squeal and read ALOT of posts on many forums. I always read the one to apply wd-40 to the belt followed by the never do this. I read teh belt dressing is a temp fix and it comes back worse.

Most likely what happened is the coolant got on the pulleys and allowed the belt to slip jsut a little bit. The belt might be glazed and then the only solution would be replace the belt. I would get some good engine cleaner and spray the pullies and belts. Then from what I hear, use white chaulk on the belt while the engine is running on each side to clean the belt. I would use some pliers if you go this route. Again from what I hear if the noise goes away...then it is the belt. Otherwise it is a pulley.

Belt dressing is for v belts not serpentine belts. dont use it

Originally Posted by silverbullet

so is it wd-40 what i should use?

I would never put wd40 on my serpentine belt. I mean it relies on friction to spin all of the different pulleys. And someone has said that the coolant made it slip. If coolant made it slip what would wd40 do, it is a lubricant. I have used carb cleaner on a belt that was squeaking to try to clean it off. But Im sure that that is bad for the belt. Also that didnt work it ended up not even being the belt but it was an idler pulley with a bad bearing.