QA

Question: When To Change A Serpentine Belt

Under ideal circumstances, your car’s serpentine belt should last 60,000–100,000 miles. It’s important to replace this belt as part of your vehicle’s scheduled maintenance (even if it looks okay) to avoid it breaking while you’re on the road.

How do you know if your serpentine belt is going bad?

If you suspect your serpentine belt is failing, watch out for the following symptoms: 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. Engine overheating. Cracks and wear on the belt.

How long does a serpentine belt last?

Typically, serpentine belts last anywhere from 50,000 to 100,000 miles. Over time, friction and heat break them down.

How do I know if my belt needs replacing?

Common Signs of Drive Belt Replacement Strange Noises. One of the biggest signs that you probably need to take your vehicle to the dealership for a check is when you start hearing strange noises coming from your engine. Visual Signs of Wear. Mileage Indicators. Breakage is Bad.

Will a new serpentine belt improve performance?

If your old belt was glazed and slipping, then yes. The new belt does not slip therefore everything is turning and generating at full capacity, hence the improvement you see.

What does a worn serpentine belt sound like?

Although there are a few causes of a squealing engine, one of the most common is a bad or failing serpentine belt. Belt squeaking is also especially pronounced when accelerating, on startup, and when making a U-turn. The noise is loud and sounds like a squeal, loud chirp, or squeak.

How expensive is it to replace a serpentine belt?

A typical serpentine belt start at around $25 and goes up to $75 at most. If you know some car repair basics, you could change the belt yourself, and it may save you paying labor charges somewhere between $75 and $120. All together, you’re looking at around $100 to $195 to replace your serpentine belt.

What are the 3 belts in a car?

Belts & Hoses Timing Belt. The timing belt is a notched rubber belt that allows the crankshaft to turn the camshaft. Serpentine Belt. Serpentine belts, also known as drive belts, provide power to the air conditioning compressor, power steering pump, cooling fan, air injection pump, and more. Hoses.

Should I replace tensioner with serpentine belt?

Tensioners add pressure from an adjustable pivot point or spring mechanism to keep your serpentine belt taut as it circulates around the engine. There is no recommended timeframe in which to replace your tensioner, especially as the belt itself usually needs replacing before the tensioner does.

Can you replace a serpentine belt yourself?

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 do you check a serpentine belt?

Here are tips for inspecting belts: Look for cracks, fraying, or splits on the top cover. Look for signs of glazing on the belt’s sides. Glazed or slick belts can slip, overheat or crack. Twist a serpentine belt to look for separating layers, cracks, or missing chunks of the grooves on the underside.

What happens if a belt breaks while driving?

When the timing belt breaks, the crankshaft will continue to spin at 1000 rotations per minute, while the camshaft will stop turning. As a result, the pistons will continue to rise and fall in their cylinders, but they will strike closed valves.

Does serpentine belt affect timing?

A serpentine belt may power the air conditioning, alternator and power steering pump on your car. A slipping timing belt will affect the engine timing, resulting in the valves opening at the wrong time. This can result in decreased performance and even engine damage if left untreated.

How long can a car run without a serpentine belt?

How Long Can A Car Engine Run With A Broken Serpentine Belt? There are a couple of factors influencing the answer to this question, but on average, your car should be able to run between 20-90 minutes with a broken serpentine belt.

Why are my brand new belts squealing?

Belt or Pulley Misalignment Most of the components in your cars are belt-driven devices. Belt or pulley misalignment is a common issue that causes changed serpentine belts to still squealing. Misalignment means that the grooves on your belt are not aligned with the ones on your pulley.

How do you know if your belt is squealing?

Check if the squeaking noise is persistent when you turn on your car, and it feels like it’s coming from the front of your vehicle (under the hood or from the engine bay). If yes, then the squeal you hear is from your serpentine belt or drive belt.

How often should drive belts be replaced?

It is often beneficial to change the drive belts in your car approximately every 60,000 to 100,000 miles. By undergoing annual car inspections, you can have your drive belts evaluated. If any signs of damage or severe wear and tear are identified, the belts can be replaced.

Can I drive without a serpentine belt?

Under no circumstances can you drive a vehicle without a serpentine belt because the serpentine belt serves the important function of delivering antifreeze to important parts of the engine. Without the serpentine belt, the power steering pump, which provides hydraulic pressure, no longer functions.

Is serpentine belt same as fan belt?

Sometimes called a fan belt, alternator belt, or accessory drive belt, the serpentine belt is spun by the engine crankshaft and, in turn, spins, or “drives”, the accessories. Cars of the past relied on multiple drive belts, but today’s vehicles (usually) count on just one, the serpentine belt.