When to replace idler pulley and belt tensioner?
If the automatic belt tensioner has failed (and the engine has a lot of miles on it), it’s probably a good idea to replace the idler pulley (s) at the same time. Why? Because the shaft bearings on all the pulleys will have the same amount of wear.
How much does it cost to replace a tension pulley?
That being said, when one pulley wears out, the others won’t be far behind. So if you have the extra money, it won’t hurt to go ahead and replace them all at once. Pulleys aren’t terribly expensive. The tensioner will cost about $40 to $50 depending on where you buy it and shipping costs.
How do you remove a tensioner pulley on a Pontiac Grand Prix?
The pulley’s bolt is reverse threaded so to the left is tighten and to the right is loosen. After loosening the tensioner pulley’s bolt, it will come off with a large metal washer attached. The 3″ smooth tensioner pulley itself can be removed by gently rocking it while pulling it away from the engine.
Where is the serpentine belt tensioner pulley located?
My car has a very slow leak that requires topping off the fluid every 6 months to prevent the PS from whining. The first pulley I replaced was the serpentine belt tensioner pulley located just below the alternator. To remove the pulley, place the 15mm socket and long handled wrench on the pulley’s bolt.
If the automatic belt tensioner has failed (and the engine has a lot of miles on it), it’s probably a good idea to replace the idler pulley (s) at the same time. Why? Because the shaft bearings on all the pulleys will have the same amount of wear.
Can a worn belt tensioner damage an alternator?
It’s just the opposite. A worn tensioner actually increases tension on the belt and that increased tension can damage the nose bearings on your AC compressor, power steering pump and alternator. Here’s why.
When to replace serpentine belt tensioner — Ricks free?
A good belt tensioner will dampen the power pulses so much that the tensioner pulley arm barely moves. As the dampener wears the pulses cause the belt to flutter and that can be seen on the pulley arm. A belt tensioner pulley arm should not move more than 1/32”.
What happens if you have a bad idler pulley?
Bad spring-loaded automatic belt tensioner: Tension is essential to proper working of the serpentine belt. A tensioner is used to maintain tension and when it seizes up or wears, tension is lost. The belt may start slipping off the pulley or slip off completely. In both cases it causes the belt to wear out faster.
How to replace tensioner and idler pulleys?
It’s probably a pulley bearing or two. It’s soooper easy to change these two pulleys and can save you about $100 and a little time if you have some basic tools. 1/2″ drive ratchet and 15mm socket if you need leverage, or 3/8″ too if you’re strong. Only takes about 15-20 minutes to do it yourself.
It’s just the opposite. A worn tensioner actually increases tension on the belt and that increased tension can damage the nose bearings on your AC compressor, power steering pump and alternator. Here’s why.
A good belt tensioner will dampen the power pulses so much that the tensioner pulley arm barely moves. As the dampener wears the pulses cause the belt to flutter and that can be seen on the pulley arm. A belt tensioner pulley arm should not move more than 1/32”.
Why does my alternator make noise when I change the belt?
If you notice noise after changing your alternator belt, you need to assess your hydraulic belt tensioner (if your car uses this type of tensioner). This type of belt tensioner is common with Toyota Corolla and Toyota matrix. As the name indicates, it works with the help of a strong spring in it.