How to Fix a Timing Belt Tensioner that is Not Working Properly

The timing belt tensioner is an important component of the engine that is responsible for moving the crankshaft and camshafts. When it does not work properly, it can lead to serious engine damage.

A broken timing belt tensioner can cause a lot of problems for your car. It will cause your car to be harder to start, run rough, or even stall out completely. If you’re lucky enough to get it fixed before it causes serious damage, then you’ll just have a big repair bill on your hands.

This article will help you fix your broken timing belt tensioner without having to pay a mechanic or buy a new one!

What is a Timing Belt Tensioner

A timing belt tensioner is a device that allows the timing belt to be tensioned and held in place without the use of a belt tensioner pulley.

Timing belts are used on internal combustion engines, especially those with overhead camshafts. When the engine is started, the camshafts rotate and engage with the crankshaft. The timing belt keeps them from rotating too fast or too slow, so they can synchronize properly and allow for power to be transferred from one to another as needed.

Bad Timing Belt Tensioner

Torque to spec

The tensioning device consists of two pulleys on either side of the timing belt. One is attached to the crankshaft (or some other part) and connected by a chain or rope to an idler pulley that is mounted on one side of the engine.

Symptoms of a Bad Timing Belt Tensioner?

The timing belt tensioner is a part of the timing belt system that helps to maintain the tension on the timing belt. It is a plastic gear and pulley system that uses spring torsion to generate force.

Symptoms of a bad tensioner include:

  • The engine will not start or will be difficult to start.
  • The engine will stall during acceleration or idle.
  • There may be excessive noise from the engine.

Symptoms of an over Tightened Timing Belt

The symptoms of an over tightened timing belt are usually a grinding noise, a squeal, or the car not starting. It is important to know the signs of an over tightened timing belt because it can lead to serious engine damage.

An over tightened timing belt can cause the following:

  • A grinding noise
  • A squeal
  • The car not starting

How to Diagnose Problems Timing Belt Tensioner

The timing belt tensioner is a device that is used to control the tension of the timing belt. It is connected to the crankshaft pulley, which it turns. When the engine is running, this device ensures that the timing belt does not slip by pulling on it.

The most common symptom of a faulty tensioner is when you hear a rattling noise coming from your engine compartment. The noise can be mistaken for an exhaust leak or a loose bolt on your car’s exhaust system, but it’s actually coming from your timing belt tensioner.

There are two common causes of why your timing belt tensioner may have failed:

  • Your vehicle has been in an accident and sustained damage to one or more components;
  • You have driven too many miles without changing your oil in time.

Best Ways to Fix Your Bad Timing Belt Tensioners?

We all know that the timing belt tensioners are the most important part of your vehicle. They keep your engine running smoothly and efficiently. And they also ensure that you don’t have to worry about any problems with your engine.

But what happens when the timing belt tensioners are faulty? You need to fix them right away, otherwise, you will have a serious problem on your hands.

If you’re wondering how you can fix these tensioners, then here are some ways that might work for you:

  1. Replace them with a new set.
  2. Use a lubricant.
  3. Use a different type of belt.
  4. Replace the tensioner pulley with one made of metal.
  5. Replace the seal on the pulley or cover it with an appropriate material.

Can low oil cause timing chain to break?

The timing chain is a long, thin metal chain that connects the crankshaft to the camshaft. It consists of a series of gears and tensioners that control the timing of when valves open and close. The timing chain is responsible for opening and closing valves at the correct time, which in turn controls the engine’s power.

When a car’s engine is cold, it takes a while for it to warm up enough for the timing chain to stretch out and start working correctly. If you drive your car right after it has been sitting for a while or if you drive your car at low oil levels, this can cause premature wear on your timing chain.


Will thicker oil stop timing chain noise?

Noise from timing chains is a common issue with many cars. The noise is caused by the chain getting caught on the sprocket and rubbing against it.

Thick oil can help to reduce this noise by slowing down the speed of the chain and reducing friction. The thickness of oil can be changed in order to reduce or eliminate timing chain noise.


A tensioner is a device that is used to control the tension on a belt drive. It is typically found in an engine, transmission, or other rotating machine. The tensioner is what controls the amount of force that the belt exerts on the pulley.

The following are some tips on how to prevent and fix bad timing belt tensioners.

Be sure that your timing belt and tensioner are in good working order before you start driving your car. If you have any doubts about this, take your car to a mechanic for inspection before you try anything else.

If your timing belt and tensioner are not functioning properly, it might be time for replacement!