What causes a serpentine belt to shred?


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Serpentine belt problems usually result from one of three causes: a defective belt tensioner; misalignment of a pulley; or, defective bearings in the tensioner, idler, or one of accessories driven by the belt (including the water pump).

Can you drive with a shredded serpentine belt?

You can Drive for a short distance with a Broken Serpentine Belt, but you will definitely want to watch your temperature light as within a few minutes your engine will get hot and overheat. If your Engine gets Hot, Do not Drive your vehicle.

What happens if serpentine belt rips?

If the serpentine belt breaks, the alternator stops generating electrical power. If that happens, your headlights will dim, the radio won’t work, and the battery will die. The battery warning light will also turn on because your battery isn’t being charged.

Will a broken serpentine belt damage the engine?

A broken serpentine belt may stop the water pump from circulating coolant through the cooling system, causing the engine can overheat.

How long do BMW serpentine belts last?

How Long Do Serpentine Belts Last? Most modern serpentine belts are able to last anywhere between 50,000 and 100,000 miles, which is a fairly big window of time.

How long can you drive on a frayed serpentine belt?

How long will my car run with a broken serpentine belt? There are a few variables involved in the answer, but it should be able to run between 20 to 90 minutes. If it is a hot summer day, your engine can overheat very quickly without the coolant being pumped through the radiator.

How expensive is it to replace a serpentine belt?

The cost of the serpentine belt itself could be around $50 and the cost of labor could be around $150. As a result, a serpentine belt cost for replacement could range from $70 to $200 depending on your exact model and where you get it replaced.

What happens if you don’t replace serpentine belt?

You’ll lose power steering, the A/C will quit, your battery will eventually die, and the engine might overheat. Plus, it could also damage the engine accessories it controls. This is why it is so important to get your serpentine belt replaced on a regular schedule.

Can I replace a serpentine belt myself?

Serpentine belt replacement is easy because today’s automatic drive belt tensioners eliminate the need to loosen bolts or pry components into position for retensioning. Just rotate the tensioner, remove the old belt and install a new one.

How serious is a cracked serpentine belt?

A broken serpentine belt can surely lead to you being stranded. At best your battery will be dead. At worst, you can have issues with engine damage. It it rare for a serpentine belt to break in a way that causes engine damage, but it can happen.

Can I run my engine without serpentine belt?

Only for a very short amount of time. Without the belt, neither the alternator nor the water pump will be driven. That means that the car battery will run down and the engine will overheat. Once either of those things happen, you’ll have to stop driving and be stuck wherever you ended up.

Can I drive a short distance without a serpentine belt?

Only for a very short amount of time. Without the belt, neither the alternator nor the water pump will be driven. That means that the car battery will run down and the engine will overheat. Once either of those things happen, you’ll have to stop driving and be stuck wherever you ended up.

Does serpentine belt affect acceleration?

Can A Bad Serpentine Belt Cause Acceleration Problems? Yes, it could. Bad serpentine belts cause loss of power. Especially in situations where slippage occurs and the alternator supplies power to the ECM.

Can a bad water pump cause serpentine belt to come off?

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Can a broken serpentine belt cause coolant to leak?

Once the drive belt broke, the water pump and power steering pump (and all other accessories) stopped turning. If the engine got too hot due to the water pump not turning, coolant could have escaped, thus explaining the fluid (if it is coolant).

Can serpentine belt last 200000 miles?

Being made of durable rubber, a serpentine belt can last anywhere from around 50,000-100,000 miles.

Can a serpentine belt last 150000 miles?

An older-style belt, made from Neoprene, usually lasts around 50,000 miles. Thus, a car with this type of belt might last you for four to five years. However, a newer belt made from ethylene propylene diene monomer, or EPDM, may last for 100,000 miles to 150,000 miles.

What causes belts to fail?

The most common reasons your belt could be missing a cog are excessive heat, the pulleys are too small or misaligned. It can also be caused by improper or prolonged storage of belts.

What does a worn serpentine belt sound like?

It can squeak, squeal, chirp and clunk, imitating a bad engine-driven accessory or engine bearing. These noises can fool even the most experienced mechanic and lead to an expensive misdiagnosis. Squeals and chirps are definitely the two most common serpentine belt noises and usually result from different problems.

Does serpentine belt affect gas mileage?

Yes it does. The A/C compressor adds additional load to the engine since it is connected by the serpentine belt. The additional load means the engine has to work harder to maintain the same speed. Harder work means more fuel consumed.

How do I know if my belt tensioner needs replacing?

Appearance: Cycle the tensioner (mounted on the engine) through the entire range of motion (from stop to stop) by applying torque to the arm with a wrench. The tensioner arm should move smoothly and freely. Solution: If you notice a binding, sticking or grinding tensioner arm, the tensioner should be replaced.

Is a serpentine belt the same as a timing belt?

A timing belt has horizontal “teeth” that are made to fit both the crankshaft and camshaft. In contrast, a serpentine belt has multiple V-shaped grooves that appear vertically along the belt. Over time, these belts need to be replaced (roughly around the same time).

How long does it take to replace serpentine belt?

It can take anything from 15 minutes to an hour (two at the most) to repair or replace a bad serpentine belt with a new belt.

How long can you 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 do you know if your serpentine belt tensioner is bad?

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