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What happens when the drive belt goes out?


The drive belt, also known as the serpentine belt, is a critical component of your vehicle's engine system. It powers essential accessories such as the alternator, power steering pump, air conditioning compressor, and sometimes the water pump. When the drive belt fails, it can lead to a cascade of problems that may leave you stranded on the side of the road. In this article, we’ll explore what happens when the drive belt goes out and what you should do about it.


Signs That Your Drive Belt Is Failing


Before the drive belt completely fails, your car may exhibit warning signs. Paying attention to these can help you avoid a breakdown:



  • Squealing noises: A high-pitched squeal from the engine bay often indicates a loose or worn-out belt.

  • Visible wear and tear: Cracks, fraying, or glazing on the belt are signs it’s nearing the end of its life.

  • Loss of power steering: If the belt slips or breaks, you may lose power steering, making the car harder to control.

  • Overheating engine: In some vehicles, the drive belt powers the water pump. If it fails, the engine may overheat.

  • Battery warning light: A failing belt can prevent the alternator from charging the battery, triggering the warning light.


What Happens When the Drive Belt Fails?


If the drive belt goes out completely, the consequences can be immediate and severe. Here’s what you can expect:



  • Loss of accessory functions: Without the drive belt, components like the alternator, power steering pump, and air conditioning compressor will stop working.

  • Engine overheating: If your vehicle’s water pump is driven by the belt, a failure can cause the engine to overheat quickly, potentially leading to severe damage.

  • Battery drain: The alternator won’t be able to charge the battery, which means your car will eventually lose electrical power and shut down.

  • Steering difficulties: Losing power steering assistance can make it extremely difficult to maneuver your vehicle, especially at low speeds.


What Should You Do If Your Drive Belt Fails?


If your drive belt fails while driving, follow these steps to ensure your safety and minimize damage to your vehicle:



  • Pull over safely: As soon as you notice a problem, find a safe place to pull over and turn off the engine to prevent further damage.

  • Call for assistance: Contact a tow service or your trusted mechanic to have your vehicle inspected and repaired.

  • Avoid driving: Driving without a functioning drive belt can cause severe damage to your engine and other components.


Preventative Maintenance Tips


To avoid the inconvenience and potential damage caused by a failed drive belt, regular maintenance is key. Here are some tips:



  • Inspect the belt regularly: Check for cracks, fraying, or other signs of wear during routine maintenance.

  • Replace as recommended: Most drive belts should be replaced every 60,000 to 100,000 miles, but consult your vehicle’s manual for specific guidelines.

  • Listen for unusual noises: Address squealing or chirping sounds promptly to prevent further damage.

  • Schedule professional inspections: Have your mechanic inspect the belt and related components during regular service appointments.


Conclusion


The drive belt is a vital part of your vehicle’s engine system, and its failure can lead to serious issues. By staying vigilant for warning signs and performing regular maintenance, you can avoid unexpected breakdowns and costly repairs. If you suspect your drive belt is failing, don’t hesitate to bring your car to a trusted auto repair shop like Kevin’s Autos. With years of experience in car maintenance and repair, we’re here to keep you safely on the road.


Frequently Asked Questions

What happens if your drive belt breaks while driving?


Such a fault can cause serious engine damage. If the belt breaks, the crankshaft and the engine do not turn in sync. The pistons hit the engine valves, and both components will most likely break or bend. The repair can be very expensive, so it is vital to change the belt before it breaks.



Is it easy to fix a drive belt?


Replacing the serpentine belt is as simple as threading it into position, cranking the tensioner and slipping the belt over the tensioner pulley, or nearest pulley up top. Belt tensioners are mostly spring tension. Once installed, the spring retains pressure to the belt.



Can the still drive with a damaged drive belt?


Never drive with a messed up belt, especially not for 3 hours. If the belt breaks down and you lose, for example, the water pump the whole engine's gonna overheat. Repair it ASAP.



Is it easy to replace a drive belt?


It may look complicated, but replacing a drive belt is a manageable task for DIY mechanics with right the tools, enough time and the correct car parts. Our step-by-step guide on how to replace a drive belt will lead you through the steps.



How much does it cost to replace a drive belt?


In comparison to most other automotive repairs, replacing a serpentine belt is generally fairly affordable. If you choose to have a professional replace your car's serpentine belt, you can usually expect to pay somewhere between $150 and $250 to get the job done.



Is replacing a drive belt difficult?


It takes maybe a minute. If the belt snaps, replacing it is trivial. You just need to pass the new belt around the fan, loosen the alternator's tensioning bolt, put the new belt on the crank, water pump and alternator pulleys, and tension it.



What does a bad drive belt sound like?


Noise. If you replace the belt. And it still squeaks it could be the belt. Itself or the noises. Coming from one of the pulleys.



What will happen if the drive belt is not replaced?


You'll lose power steering, the air conditioner will quit, your battery will eventually die, and the engine might overheat.



Are there warning signs before a timing belt breaks?


You need to look out for signs and symptoms of a weakening timing belt so that you can take action before it is too late. These include loud clicking sounds coming from your engine, squealing sounds, and your engine failing to start at all.



How do I know if my drive belt is worn out?


Visible Cracks and Wear
Regular visual inspections of the serpentine belt can reveal important information about its condition. If you notice cracks, fraying, or signs of wear on the belt's surface, it's a clear indication that it needs replacement.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.