With the engine running spray the belt dressing directly onto the back of the fan belt.
Fan belt squeal spray.
Spray on belt dressing if you re unable to stop the squeal with either of these methods you can use a spray on belt dressing compound widely sold at automotive shops.
As the engine runs the fan belt will be moving quickly so you can leave the can in one place and spray onto the belt as it spins.
Wd 40 is a water displacement lubricant and should remove the moisture from the belt ribs.
How to fix a squeaky belt in your car diy with scotty kilmer.
If the squeak goes away your belt is the culprit.
This may be occurring due to any number of factors including the following.
But when the belt dries out and or the solvent flashes off the rib surface will become very tacky and aggressive which will actually cause the noise to return even louder.
It is applied to the belt while the engine is running and you should notice that the squeal stops almost instantly.
Sometimes a belt will squeal upon starting a vehicle and will disappear shortly thereafter.
Spray the belt dressing directly onto the belt.
Similar to when your tires squeal on the pavement this slip causes a dreadful noise.
The secret to fix a squeaky belt in your car.
The sound of a squeaky belt in your vehicle s engine is usually because the rubber belt is slipping on the metal pulley.
If you feel it s a specific belt grab a spray bottle filled with water and squirt the inner lining of the belt as it runs.
Spray just enough wd 40 onto the belt to lightly cover the area where the squeal occurs.
When belt dressing oils or solvents are placed on a belt the belt s rib surface will initially become lubricated which may quiet the noisy belt temporarily.
Aside from being embarrassing a squeaky fan belt can be mildly if not terribly bothersome when listening to it squeal for extended periods of time.
Belt squeal squeaky belt belt noise.
It is generally easier to determine when alternators are the cause of the squeak since they tend to be closer to the top and front end of the engine.
A main drive belt and separate ones for the alternator fan water pump hydraulic steering etc.
If a noise remains after spraying your belts it could be a bad pulley or a tensioner that needs replacement.
After turning off the engine the belt can be visually inspected for wear and tear.
