Why do you need tensioner on serpentine belts?
Both are used to keep tension on the engine serpentine belts so that they can drive the various engine accessories. When the tensioner has an issue, it can affect the how the belts drive the pulleys which can affect the performance and functionality of the vehicle.
Do you have to replace the serpentine belt?
To replace the serpentine belt you have to move the tensioner but you don’t touch the mounting bolt. This is the belt tensioner assembly I recall working on a few of those engines and recall removing and replacing that tensioner.
What does it mean when your serpentine belt is slipping?
Pulleys tend to wear out or fall apart in some cases while damaged tensioners loosen the serpentine belt. Weak glow of the battery warning light When you have a weak glow on the dashboard it could mean the serpentine belt is severely slipping. In this case, the alternator is barely producing enough voltage output (hens the warning light).
What happens when a belt tensioner is loose?
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. 2. Unusual belt wear
What causes a serpentine belt to come off?
Grinding sound tell that there is a damaged bearing in a driven accessory. Belt coming off can either be as a result of pulley misalignment, belt misalignment on a pulley, defective tensioner, or bearing wear in the tensioner, idler or driven accessories.
Do you have to move serpentine belt tensioner?
It had not been worked on before. To replace the serpentine belt you have to move the tensioner but you don’t touch the mounting bolt. This is the belt tensioner assembly I recall working on a few of those engines and recall removing and replacing that tensioner.
How often should a serpentine belt be replaced?
Have the belt replaced whenever a related component is replaced (a broken belt is often associated with a damaged or seized pulley on one of the engine accessories). And consider regular inspection and replacement of the serpentine belt as a part of routine vehicle maintenance every 30k miles.
Is the water pump driven by the serpentine belt?
Another important device driven by the serpentine belt is the water pump. This is not always the case as on a lot of cars the water pump is driven by the timing belt. You should have this in mind so you don’t falsely “accuse” the serpentine belt for overheating.
What happens if you loose a drive belt tensioner?
A seized or loose drive belt tensioner can cause the belt to snap, which will disables those accessories and can cause problems such as overheating, a dead electrical system and battery, or a disabled AC system.
What can a bad tensioner do to a car?
When the tensioner has an issue, it can affect the how the belts drive the pulleys which can affect the performance and functionality of the vehicle. Usually a bad or failing tensioner will produce a few symptoms that can alert the driver of a potential problem that should be serviced. 1. Grinding or squeaking noise from the belts or tensioner
What does a spring tensioner do on an engine?
Spring tensioners are designed to tension automatically while the pivot design types can be adjusted manually. Both are used to keep tension on the engine serpentine belts so that they can drive the various engine accessories.
Both are used to keep tension on the engine serpentine belts so that they can drive the various engine accessories. When the tensioner has an issue, it can affect the how the belts drive the pulleys which can affect the performance and functionality of the vehicle.
Is the serpentine belt a serious car problem?
A serpentine belt problem is one of the more serious car problems. Not serious in terms of replacement but rather in terms of the consequences it may have if neglected or not recognized on time. This belt has a huge and important role in the proper functioning of your car. So, if you don’t take action on time, it may cause severe damage.
Can a bad belt tensioner cause a car to break?
In more severe instances, a bad tensioner pulley can cause the drive belt to break. Since the belt tensioner keeps the proper spinning of the drive belts in the car’s engine, certain components or accessories may fail to operate if there’s a problem with the tensioner.
What causes a squealing noise from the serpentine belt?
If you notice a squealing noise coming from the front of your vehicle, it could be from the serpentine belt. This could be due to a slippage or misalignment. The only way to make the noise go away is to contact a professional mechanic and have them replace the serpentine/drive belt or diagnose the issue. 2. Power steering and AC not working
How to replace the belt tensioner on a Mercedes 190E?
Here is a photo for the tensioner and shock (red arrow), the adjusting rod (yellow arrow) and tensioner bracket (green arrow). Installation is the reverse of removal. Take care to make sure the belt is properly seated on all the pulleys, follows the right path and everything is torqued to specs.
When do you know you need to replace your belt tensioner?
If you notice that there is resistance, roughness, or noise every time you turn the pulley, then there’s a chance that the problem is in the pulley bearings. You might think of replacing only the pulley bearings in this case. Mechanics will tell you to replace the entire belt tensioner system.
What does the pulley on a belt tensioner do?
The pulley is what allows the movement of the drive belt. The spring keeps the drive belt in its correct tension. The tensioner arm is a mechanism that allows for the adjustment or the removal of the drive belt. It delivers enough slack on the drive belt for easier adjustments. The base is what holds all the different parts together.
What does a loose belt tensioner sound like?
If the drive belt noise resembles a squeal or a squeak, it is possible that the belt tensioner is loose. This is especially the case when starting the engine first thing in the morning. Since the tensioner is not able to maintain the correct tension on the belts, it produces a squealing or squeaking sound.
What are the symptoms of a bad belt tensioner?
Squeaking or Grinding Noise. One of the most common symptoms of a failing belt tensioner is unusual noise coming from either the tensioner or the drive belts. If the drive belt noise resembles a squeal or a squeak, it is possible that the belt tensioner is loose. This is especially the case when starting the engine first thing in the morning.
Why does my belt tensioner make a grinding noise?
If the noise you hear is similar to a grinding sound, then it is possible that the tensioner bearings or the tensioner pulley is the problem. These parts tend to wear out. This is what causes the grinding noise since the metal parts will be rubbing against each other. This is another symptom of a failing belt tensioner.
Why does a serpentine belt make a noise?
The tension in the serpentine belt is the main factor responsible for its operation. In case you miss to get the right tension on the belt, it is sure to produce noise while in function. If ignored, the looseness will cause the belt to dislodge, and extra tension will lead to exertion and excess wear of belt.
What are the symptoms of a bad serpentine belt?
Symptoms of a Bad or Failing Serpentine/ Drive Belt . Common signs include a squealing noise from the front of the vehicle, power steering and AC not working, engine overheating, and cracks on the belt.
What problems can a bad serpentine belt cause?
This is what you should look out for Squealing noise from the front of the vehicle. If you notice a squealing noise coming from the front of your vehicle, it could be from the serpentine belt. Power steering and AC not working. If the serpentine belt completely fails and breaks, then your car will break down. Engine overheating. Cracks and wear on the belt.
How do you know if your serpentine belt is too tight?
If you notice any whine or “pulsing” sound from the alternator, your belt tension is too tight and will damage the alternator. In this case, turn the adjustment screw counterclockwise to loosen the belt and recheck the tension. Do a final check. You can also check for continuous power from all your accessories.
How do you remove a serpentine belt?
To remove the serpentine belt, release tension off of the tensioner. Then grab the serpentine belt between the a/c compressor and alternator just pull it off. You do not need to take it far off.