How long does an alternator belt last?
60,000 to 100,000 miles
Serpentine belts are built to last—much longer than before because of advancements in rubber technology. Under ideal conditions, a belt should stick with you for an average of 60,000 to 100,000 miles. Pretty impressive. However, some belts are manually tensioned and may need to be adjusted.
How long do Subaru serpentine belts last?
50,000 miles
When Should I Replace My Subaru Serpentine Belt? Most serpentine belts last for 50,000 miles or more. Consult your Subaru owner’s manual for details on your specific vehicle. Symptoms that point to a failing serpentine belt generally appear as poor performance from accessories, rather than driving performance.
When should alternator belt be replaced?
Usually, you can expect your alternator belt to last 3-4 years. You should have it inspected regularly – a good rule of thumb is to have your mechanic check the alternator belt whenever you have an oil change. Signs that your alternator belt needs to be replaced include: Fraying, cracking or looseness.
How many miles does a belt tensioner last?
Most modern cars that roll off the dealer’s lot as a new vehicle will have a 60,000 to 100,000-mile life expectancy for the serpentine belt, tensioners, and idler pulleys.
What are the signs of a bad alternator belt?
Symptoms of a Bad or Failing Alternator Belt
- Battery light is on. When the battery light on your instrument cluster comes on, you will need to pay attention.
- Dimming or flickering interior lights. The lights on the inside of your car are used primarily during the nighttime hours.
- Engine stalls.
How do I know if I need to replace my serpentine belt?
Signs You May Need A New Serpentine Belt
- Loud noise or screech from under the hood, particularly when you accelerate.
- Serpentine Belt shows signs of fraying, cracking, splitting, or glazing.
- Engine components such as power steering cease to operate.
- Engine overheats.
How do you know if your serpentine belt is going bad?
Symptoms of a Bad or Failing Serpentine/Drive Belt
- 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.
What happens if you drive with a broken alternator belt?
The serpentine belt is also known as an alternator belt, fan belt, or accessory drive belt. If your serpentine belt wears out, becomes damaged or contaminated, or breaks, engine accessories will not be able to spin at the proper speed, leading to decreased power to the electrical system.
What does a loose drive belt sound like?
A loose drive belt will often be noisy, squeaking a bit, or emitting a high-pitched squeal. If this appears to be the case, you should have a mechanic adjust the belt tension so that it doesn’t come off and damage your engine or leave you stranded. There are two types of drive belts used in automotive vehicles.
What are the signs of a bad belt tensioner?
Grinding or squeaking noise from the belts or tensioner The most common symptom of a bad or failing drive belt tensioner is noise from the belts or tensioner. If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started.
How much does it cost to replace a alternator belt?
The replacement cost of an alternator belt is typically between $100 and $200. The part cost is between $25 and $80 while the labor cost is between $75 and $120. The true replacement cost will depend on how long it takes the mechanic to access your alternator belt.