Hydraulic Tensioner Pulley Hydraulic (not hydraulic-damped) tensioners are almost always located in the timing case, mostly on vehicles with timing chains, though some are used with timing belts.Simply so, where is the belt tensioner located?
The belt tensioner is on the front of the engine, between the crankshaft and alternator pulleys.
Subsequently, question is, is the idler pulley and tensioner pulley the same? 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.
People also ask, how do I know if my tensioner pulley is bad?
Symptoms of a Failing Belt Tensioner
- 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.
- Excessive Sideward Movement of the Tensioner Arm.
- Loss of Tensioner Spring Force.
What does a bad tensioner pulley sound like?
1. 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.
Can you drive with a bad tensioner pulley?
So, how long can you drive with a bad idler 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 when a pulley goes bad?
If the surface of the idler pulley wears, or the pulley seizes or binds it may cause the engine belt to squeal as a result of it rubbing against the surface of the pulley. In some instances a bad pulley may bind or slip and cause the belt to squeal when the engine is first started.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.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.What causes a belt tensioner to go bad?
1. Grinding or squeaking noise from the belts or tensioner. The most common symptom of a bad or failing drive belt tensioner is noise from the belts or tensioner. 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.How do you remove a pulley without a pulley puller?
There is a way to do it. You put a wrench on the pulley bolt and block the other end against the floor or the frame. Then you use the starter motor to turn the engine (DO NOT START IT, JUST TURN IT) for at most one or two revolutions of the crank. Just enough to break the bolt loose.How much does it cost to replace 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.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.Is a tensioner pulley supposed to move?
Appearance: Move the tensioner arm (tensioner being mounted on the engine) through its entire range of motion with a wrench. There should be resistance to this movement. If there is none, the spring has lost its force. Other indicators are belt squeal from slippage, or loss of rotation of a belt-driven component.Is the idler pulley supposed to spin?
However, the idler pulley is difficult to spin by hand. It looks new, but if you spin it by hand it stops spinning as soon as you stop turning.Should tensioner be replaced with serpentine belt?
In order to keep the proper tension on your vehicle's serpentine belt, a drive belt tensioner is used. It should be noted that the drive belt itself will most likely need replacing before the tensioner does. Drive belts typically last anywhere between 40,000 and 70,000 miles.How does a tensioner pulley work?
The base holds the other parts, and the spring keeps the belt pulled tight. The pulley is what facilitates movement of the belt. The tensioner arm is found on the bottom of the tensioner, and if you press on it, it will work against the spring, delivering enough slack so that you can adjust or remove the belt.How do you remove a pulley?
You may also use a bolt-removing tool on the bolt's head. 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.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 much is 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. When would you like to drop off your car?How do you change a 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.Should idler pulley have any play?
There should be no wobble, or end play in the bearings at all. They should have no thrust or axial load at all. You will wear out the other pulleys and accessories eventually if you don't. 
