How To Replace Fan Belt
Save money and learn how to replace a fan belt on your own. The fan belt delivers power from the engine to the fan. The fan moves air across the engine radiator which in turn keeps the engine temperatures within a certain range. When the belt breaks or wears out you'll hear a lot of squealing.
To replace a fan belt, you'll need:
- fan belt
simple hand tools
- Work on a cool engine. The fan belt is very near the engine and you can get burned easily.
- Look for the belt path going to the fan. Some models of vehicles have just one belt that powers everything, others have multiple belts to power things like air conditioning.
- A fan belt usually also travels around the alternator. The alternator will have bolts holding it in position. Loosen the bolts some, which allows you to push on the alternator housing and move it slightly which creates slack in the belt.
- Remove the fan belt. With the alternator loose the belt should come off of that pulley and then allow you to remove the belt from around the fan.
The installation of the fan belt is the reverse of the removal procedure. Place the new belt around the fan pulley and then around the alternator.
- Secure the alternator. Move the alternator back into position and while keeping the fan belt from having slack, tighten the alternator bolts. The fan belt should have about an inch of movement when you press down on the belt.
Push the alternator back into position with the new belt on and tighten the bolts holding it in position.
When you start the vehicle up, if you hear a squeal you need to tighten the belt. Go back to the alternator bolts and loosen them, then use something like a piece of wood to get leverage on the alternator housing and tighten the belt and bolts.