7 Simple Steps to Replace Your Idler Pulley Disconnect the negative battery cable. Loosen the tension adjustment bolt with a socket wrench and remove the drive belt. Remove the retaining bolt to release the idler pulley.
Full Answer
Where is the idler pulley on a 3.5?
How much does it cost to pull a pulley?
How much deflection does an alternator belt have?
How much deflection does a compressor drive belt have?
Can you replace idler pulleys before snapping serpentine belt?
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How do you change the idler pulley on a 2003 Trailblazer?
3:057:49How To Replace Engine Idler Pulley 02-09 Chevy Trailblazer - YouTubeYouTubeStart of suggested clipEnd of suggested clipThank You Angela pulley is right down here underneath the alternator the 15 millimeter socket andMoreThank You Angela pulley is right down here underneath the alternator the 15 millimeter socket and ratchet on. It. Okay we'll just fast forward removing that bolt.
What are the symptoms of a failing idler pulley?
Signs and Symptoms of a Bad Idler PulleyChattering, Squealing, or Chirping Sound. ... Corroded Surface. ... Excessively Loose Idler Pulley. ... A Bad Idler Pulley May Spin Excessively. ... Slow to No Spin or Binding.
How long does it take to change a idler pulley?
If you are doing the job at home, give yourself about four hours to change all the parts. You will need the following tools and parts: Replacement idler pulley.
How do I access the idler pulley?
3:4312:12Replacing the Idler Pulley (Whirlpool Part # WP6-3700340) - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo just reaching the both arms let them in through the sides locate the idler pulley on the beltMoreSo just reaching the both arms let them in through the sides locate the idler pulley on the belt will push that either pulley towards the side of the cabinet.
What does an idler pulley sound like when it's going out?
Idler pulley slippage is likely to follow after it becomes worn out enough. This will cause the pulley to bind and then rub against the engine belt. As a result, there will be squealing noises coming from the engine area that will only get worse until the pulley is replaced.
Is the idler pulley and tensioner pulley the same?
The primary distinction between tensioners and idler pulleys is the presence of an adjustable bolt. Tensioners are positioned on the bolt through mounting. Idler pulleys are not mounted to an adjustable bolt.
What can a bad idler pulley cause?
The pulley spins against the belt wearing down both parts. This wear reduces tension which can lead to belt slippage. Even more noticeable is a cracked or damaged pulley or bearing. This damage interferes with the rotation of the belt causing torn belts, or the belt falling off of the engine.
Can you over tighten an idler pulley?
A belt shouldn't be over-tightened. Any bearing that the belt rotates on can be burned out by an over-tightened belt. A pulley bearing can be ruined by an over-tightened timing belt.
Can you drive without an idler pulley?
In some cases, you will be able to safely drive for tens of thousands of miles before you notice any drops in performance. But, it takes only one slip of the belt for the engine to lose momentum and for you to lose control over the vehicle.
How do I change the idler pulley bearing?
0:082:55HOW TO | Replace Idler Pulley Bearing - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe socket that I used is exactly the same circumference. As the bearing so you'll see it get stuckMoreThe socket that I used is exactly the same circumference. As the bearing so you'll see it get stuck when I press it. Out. You can use a hammer or a pipe to help press out the bearing.
Where is the idler pulley located?
The idler pulley and belt are located near the front of the engine. You will see the belt rotating in conjunction with the engine. You can find the idler pulley when you look at the serpentine belt moving on the engine.
How do you stop a pulley from squeaking?
2:258:41How to Fix a Squeaky Belt (figure out where the squeak is coming from)YouTubeStart of suggested clipEnd of suggested clipAfter you spray the belt. And the noise is the same noise. It doesn't change that means the problemMoreAfter you spray the belt. And the noise is the same noise. It doesn't change that means the problem is probably a bad bearing in a pulley.
What can a bad idler pulley cause?
The pulley spins against the belt wearing down both parts. This wear reduces tension which can lead to belt slippage. Even more noticeable is a cracked or damaged pulley or bearing. This damage interferes with the rotation of the belt causing torn belts, or the belt falling off of the engine.
How do I know if my belt tensioner is bad?
One of the most common symptom of a bad or failing drive belt tensioner is noise from the belts or tensioner. If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started.
Can a bad idler pulley cause vibration?
Grinding noises – Grinding and rumbling noises are another common sign of tensioner or idler pulley failure, usually due to failing bearings. Excessive tensioner movement – Worn-out coil springs can also cause drive belt tensioners to loosen their grip on the drive belt, resulting in excessive vibration and rattling.
How often should I change idler pulley?
Replacement intervals for idler pulleys vary, but are usually within the 50,000 to 100,000 mile range. Replacement often coincides with expected serpentine/accessory belt replacement periods.
Where is the idler pulley on a 3.5?
this is a diagram for a chevy 3.5 belt routing. idler pulley is bottom left.
How much does it cost to pull a pulley?
Yes, very simple....about 15 minutes and around $25 for the pulley.
How much deflection does an alternator belt have?
Adjust the alternator drive belt to obtain 6-8 mm (0.24-0.32 in) deflection for a used belt or 5-6 mm (0.20-0.24 in) deflection for a new belt.
How much deflection does a compressor drive belt have?
Adjust the A/C compressor drive belt to obtain 6-9 mm (0.24-0.35 in) deflection.
Can you replace idler pulleys before snapping serpentine belt?
It is the idler pulley. Change it before it seizes and snaps the serpentine belt. It should be a relatively inexpensive repair.
Where is the idler pulley on a 3.5?
this is a diagram for a chevy 3.5 belt routing. idler pulley is bottom left.
How much does it cost to pull a pulley?
Yes, very simple....about 15 minutes and around $25 for the pulley.
How much deflection does an alternator belt have?
Adjust the alternator drive belt to obtain 6-8 mm (0.24-0.32 in) deflection for a used belt or 5-6 mm (0.20-0.24 in) deflection for a new belt.
How much deflection does a compressor drive belt have?
Adjust the A/C compressor drive belt to obtain 6-9 mm (0.24-0.35 in) deflection.
Can you replace idler pulleys before snapping serpentine belt?
It is the idler pulley. Change it before it seizes and snaps the serpentine belt. It should be a relatively inexpensive repair.
