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.

Also, Can idler pulley making noise?

Idler pulley slippage

Once the pulley gets worn out it may start rubbing itself against the engine’s belt. This will produce the squeaking noise which gets even worse as you continue driving the car. If not replaced immediately it may cause damage to parts around the belt if it fails.

In this way, 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.


30 Related Questions Answers Found

 

How long should an idler pulley last?

An idler pulley is a simple device used to keep tension on the accessory belt (also called the β€œserpentine 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.

Why is my pulley making noise?

An engine pulley is mounted to the engine of an automobile and drives all belts. Belt and pulley noise is usually a screeching sound that has a repetitive pattern screeching on each revolution. The screech can be caused by a worn out belt or by the pulley attached to an engine accessory that is starting to freeze up.

Is it bad to drive with a squeaky belt?

Having a vehicle with squeaking noise when driving or a squealing engine belt can be embarrassing and annoying. That single engine belt is called the serpentine or drive belt. This belt is different from your timing belt because if it breaks it won’t do any immediate damage to your engine or car.

Can idler pulley making noise?

Idler pulley slippage

Once the pulley gets worn out it may start rubbing itself against the engine’s belt. This will produce the squeaking noise which gets even worse as you continue driving the car. If not replaced immediately it may cause damage to parts around the belt if it fails.

What is the purpose of an idler pulley?

Function. The idler pulley is one pulley in a set that drives the belt system of a vehicle. The idler pulley regulates the belts that connect to the crankshaft and are used to produce movement in numerous engine accessories, such as the alternator, steering pump and air-conditioner compressor.

What is the function of idler pulley?

Idler pulleys are used to take up slack, change the direction of transmission, or provide clutching action. Idler pulleys are rollers that do not produce any mechanical advantage, nor transmit power to a shaft. Idler pulleys are used to lead a chain around a bend or to take up slack in a drive chain.

Is it bad to drive with a squeaky belt?

That’s why it’s recommended that the serpentine belt is replaced early when the squealing symptoms are first noticed. Although it may be safe to drive with the squealing for a few days or weeks, the belt will eventually need to be replaced, and for safety, the earlier it’s repaired, the better.

How tight should the idler pulley be?

How do I know if my tensioner pulley bearing is bad?

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.

How long can you drive with a bad belt tensioner?

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. 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 an idler pulley?

The average cost for a drive belt idler pulley replacement is between $143 and $164. Labor costs are estimated between $64 and $81 while parts are priced between $79 and $83. Estimate does not include taxes and fees.

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.

How do you replace the idler pulley?

Part 1 of 1: Replacing an idler pulley
  1. Materials Needed. Replacement idler pulley.
  2. Step 1: Disconnect the battery. Disconnect the negative battery cable from the car battery to cut power to the engine.
  3. Step 2: Remove the drive belt.
  4. Step 3: Remove the old pulley.
  5. Step 4: Install the new pulley.
  6. Step 5: Torque the pulley.

What does a bad power steering pulley sound like?

As the bearings on the impeller go bad it will start to make noise as the pump is turning. If you have a bad power steering pump you usually will also experience leaks from around the pulley, a wobbly pulley, or difficulty turning the steering wheel when you are stopped.

How long does it take to replace a pulley?

If an idler pulley goes bad, usually the bearing is to blame, which throws the pulley off balance, creating wear and too much friction, which causes the belt to wear rapidly.

How long does it take to replace a pulley?

You can increase or decrease the blower speed by slightly adjusting the pulley on the blower drive motor. To increase blower speed, slightly loosen the setscrew that holds the pulley to the driveshaft. Move or turn the pulley clockwise on the shaft one turn, then tighten setscrew.

How do you adjust a pulley for a faster driven pulley speed?

You can increase or decrease the blower speed by slightly adjusting the pulley on the blower drive motor. To increase blower speed, slightly loosen the setscrew that holds the pulley to the driveshaft. Move or turn the pulley clockwise on the shaft one turn, then tighten setscrew.

What is an idler pulley used for?

Function. The idler pulley is one pulley in a set that drives the belt system of a vehicle. The idler pulley regulates the belts that connect to the crankshaft and are used to produce movement in numerous engine accessories, such as the alternator, steering pump and air-conditioner compressor.

How much is an idler pulley?

The average cost for a drive belt idler pulley replacement is between $143 and $164. Labor costs are estimated between $64 and $81 while parts are priced between $79 and $83. Estimate does not include taxes and fees.

How long does a tensioner pulley 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 change a tensioner pulley?

This resonance causes too much stress for the crankshaft. If this stress continues, the crankshaft will break and your vehicle will be inoperable. The pulley belt may slip causing your vehicle to backfire or misfire. The vehicle’s ignition timing will be off.

Is it safe to drive with a bad belt tensioner?

A failing belt tensioner can also cause problems in the water pump. The air conditioning compressor may also fail to work if there is an issue with the belt tensioner. If this happens, then you will be driving without your air conditioning. It should be okay if you are cruising.

How many idler pulleys does a car have?

Cars have 2 types of belt pulleys, the idler and the tensioner. Some cars have only one of each type, although there are those that may have more than one idler pulley. The idler and tensioner pulleys look the same and function in the same way, too.

How many idler pulleys does a car have?

Replacing the pulley should only take an hour or two, and the parts will vary in cost from one type of car to the next. How many parts need to be replaced and how long the repairs take will depend on how severe the damage is. If the pulley is simply loose, then replacing it will be simple and straightforward.

Can you tighten a tensioner pulley?

Tighten the tensioner pulley by turning the adjustment bolt clockwise with the ratchet and socket until the belt is tight. Tighten the bolt in the center of the pulley with the ratchet and socket.

What is the average life of a serpentine belt?

60,000 to 100,000 miles

What does a bad belt sound like?

The symptoms of a loose serpentine belt include a loud squealing noise when the engine is started or when the steering is turned all the way to one side. A serpentine belt that keeps slipping off the pulley is another symptom of a bad tensioner. The solution is to replace a serpentine belt and a belt tensioner.

Can a belt tensioner be adjusted?

When the belt stretches, it can begin to slip, if left unattended. Not all types of drive belt systems can be adjusted. Cars equipped with an automatic belt tensioner adjust themselves over time and do not require adjustment. This article shows you the process to adjust drive belts on a pivot-style belt adjuster.

What happens if the crankshaft pulley breaks?

60,000 to 100,000 miles

How do you remove a idler 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.

How do you replace the idler pulley?

This resonance causes too much stress for the crankshaft. If this stress continues, the crankshaft will break and your vehicle will be inoperable. The pulley belt may slip causing your vehicle to backfire or misfire. The vehicle’s ignition timing will be off.