Position the tensioner in the vise so you can access the pulley bolt. Turn the pulley bolt counterclockwise with a ratchet and a socket. Remove the bolt, the retaining washer and the pulley. Replace the pulley, washer and bolt and tighten to specified torque illustrated in the repair manual.
Consequently, how do you replace the idler tensioner pulley?
Loosen the bolt and push the pulley toward the center of the engine to relieve the tension on the belt. Slide the belt off the idler pulley. Hold the idler pulley so it cannot turn and loosen the center bolt with a socket wrench. Remove the bolt completely and pull the idler pulley from the engine.
Secondly, how much does it cost to replace a belt tensioner? The average cost for a drive belt tensioner replacement is between $211 and $239. Labor costs are estimated between $73 and $93 while parts are priced between $138 and $146. Estimate does not include taxes and fees.
Beside above, how do you remove a tensioner pulley?
If equipped with a tensioner screw, back off the tensioner screw. Then, push the alternator toward the other pulleys, loosening the belt. To loosen an NAI tensioner, loosen the locking nut or bolt, then back off the tensioner screw. Push the pulley toward the other pulleys or accessories, loosening the belt.
Can you drive with a bad pulley?
The safety recommendation is not to drive the car at all and take it to a mechanic immediately. You should be concerned if the vehicle makes squeaking or rattling noises. The car can still run for months or break after a few days.
What happens if tensioner pulley breaks?
When the tensioner or tensioner pulley fails, the loss of tension can cause the belt and pulleys to make high-pitched rattling or chirping noises. If the pulley bearing completely fails, it can also cause a squealing or even a grinding noise.
How long does it take to replace a tensioner pulley?
You are only required to loosen the bolt that goes behind the PS pump. This will move the tensioner pulley. You will then slide the default belt off and replace with the right one. This process should not take you more than 30 minutes.
What does a bad tensioner pulley sound like?
Grinding or squeaking noise from the belts or tensioner
If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started. It is also possible for the tensioner pulley or bearing to wear out, in which case the vehicle will produce a grinding noise from the pulley.
When should I replace my tensioner pulley?
Alternator decouplers and pulleys should be inspected every 10,000 miles for wear. Early design versions have a service life of 40,000 to 60,000 miles, with more recent versions lasting more than 100,000 miles. When inspecting a decoupler or pulley, there are two signs that replacement is needed.
How do you diagnose a bad pulley?
Symptoms of a Bad or Failing Idler Pulley
- Visibly worn pulleys. One of the first symptoms of an issue with an idler pulley is visible wear on the pulley.
- Belt squealing. Another common symptom of a possible issue with the idler pulley is squealing from the engine belts.
- Damaged bearing or pulley.
How long do idler pulleys last?
An idler pulley is a simple device used to keep tension on the accessory belt (also called the “serpentine belt”). An idler pulley is expected to wear over time, and eventually the pulley will fail. Replacement intervals for idler pulleys vary, but are usually within the 50,000 to 100,000 mile range.
What is the difference between an idler pulley and a tensioner pulley?
The difference between the two is that the idler pulley is mounted on a fixed structure while the tensioner pulley is mated to an adjustable device. Specifically, the idler pulley provides a smoothly and efficiently rotating point for the car's engine belt drive to move and loop around, preventing unnecessary slack.
Can a belt tensioner be repaired?
If the drive belt shows any wear, it should be replaced. If you have a bad spring or hydraulic drive belt tensioner, it is not repairable. The mechanic will also be sure that the belt is properly tensioned after the repair, and will check that all of the engine pulleys that the belt runs through are properly aligned.
Can you drive without a serpentine belt?
It drives multiple peripheral devices including, the alternator, power steering pump, water pump, air conditioner and others. Without the serpentine belt, there is no way to drive power to any of these devices.
How tight should a tensioner pulley be?
The required measure of tension in the serpentine belt is that it should not deflect more than ½ inch when twisted either way from the middle. If twisted more, the belt is loose, and if twisted less, the belt is too tight. Either of the positions does not work for the vehicle.
How much is a tensioner pulley?
You will pay somewhere between $125 and $380 to have your tensioner pulley replaced. The labor should run between $45 and $155, while parts can cost as little as $85 or as much as $225.
Can you replace just the pulley on a tensioner?
More often than not, just the pulley goes bad on the tensioner, not the whole tensioner, and for most vehicles, you can purchase and replace the pulley instead of the tensioner itself. The pulley should be replaced if it has a lot of resistance when you spin it.
Can you replace the pulley on a belt tensioner?
Replace the tensioner in the engine and replace the bolt. Release the tension on the automatic belt tensioner using the serpentine belt tool or wrench to manipulate the belt back onto the pulley it was removed from. If you replaced the belt, snake it around the pulley system properly.
What are the signs of a bad belt tensioner?
Some of the more common symptoms of a failing or bad belt tensioner include the following.
- Squeaking or Grinding Noise.
- Unusual Belt Wear.
- Failure of the Belt-driven Accessories to Operate.
- Bleeding Rust and Presence of Cracks.
- Excessive Wear of Pulley Bearing.
- Visible Signs of Pulley Wear.
Where is the tensioner pulley located?
Locate the manually adjustable tensioner pulley on the front of the engine. The pulley will be round with a bolt head in the middle of it and an adjustment bolt sticking out of the side, top or bottom of the pulley.
How long does a belt tensioner last?
Drive belts typically last anywhere between 40,000 and 70,000 miles. There aren't a lot of warning signs that a drive belt tensioner has hit the end of its lifespan, in fact there is really only one.
How do you remove a pulley?
Disassemble the crankshaft pulley
You just have to place one end on the bolt-removing tool and slacken the bolt using an impact wrench. With the bolts included in your tool, you may now tighten the bolt remover tool. Keep doing this step until the crankshaft pulley is finally released.
Should belt tensioner wobble at idle?
Watch the tensioner arm movement while the engine is idling. There should be a gentle arm motion as accessories turn on and off (such as the A/C compressor clutch engaging and disengaging). If the tensioner pulley does not move at all, the tensioner may be stuck. You can test for this later with the engine off.
How do you fix a pulley?
Part 1 of 1: Replacing an idler pulley
- Materials Needed. Replacement idler pulley.
- Step 1: Disconnect the battery. Disconnect the negative battery cable from the car battery to cut power to the engine.
- Step 2: Remove the drive belt.
- Step 3: Remove the old pulley.
- Step 4: Install the new pulley.
- Step 5: Torque the pulley.