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Serpentine Belt Repair at your home

Our certified mechanics come to you · Backed by 12-month / 20,000 km gold standard warranty program.

8AM - 6PM Monday to Saturday

Serpentine Belt Repair Service

How much does a Serpentine Belt repair cost?

The cost for replacing the serpentine belt varies on the vehicle but is usually between $100 to $350.

What is a serpentine belt?

The serpentine belt, also called the alternator belt, accessory belt or drive belt, is what connects the engine’s output shaft to the alternator. You’ll notice cracking and fraying if your belt is wearing out, which is a sign that it should be changed.

When to replace your car's serpentine belt

  • Regularly scheduled maintenance. Normally, belt manufacturers recommend belt replacement at 140,000 km. However, the belt must be examined for wear or damage at regular intervals prior to this high mileage.
  • Squealing noise, visible belt damage, belt slippage. You may hear noise or you may see visible signs of deterioration such as missing chunks of rubber, excessive cracking, or a shredded appearance on the edge of the belt if the belt fail or wear out prematurely.
  • Battery Light On. A loose belt, possibly caused by a defective tensioner, may not drive the alternator at sufficient speed and thus the battery may discharge, causing the warning light to light up.
  • Engine overheating. Often, the serpentine belt powers the water pump. In those applications, the engine will overheat in seconds to minutes if the belt breaks. If the belt is inadequately tensioned, you may notice higher-than-normal engine operating temperature.

How do mechanics replace the serpentine belt?

  • Before removing the belt, the mechanic must run the engine to regulate if the idler pulley and the belt tensioner are noise-free. Those rotating components have grease filled bearings and are subject to breakage. Moreover, the mechanic will guarantee that all pulleys and accessories are turning in the same plane. These steps help assure your new belt will operate trouble-free for its full-service life.
  • The belt’s routing path through the various components is noted. The belt tensioner is released, usually with a lever or wrench, to relieve the tension from the belt. With the tension gone, the belt slides off the pulleys.
  • All rotating components — that is the air conditioner compressor, alternator, etc. — are inspected for smooth operation and no noise.
  • If everything checks out, the new belt is installed all of the pulleys while holding the tensioner away from the belt. The tensioner is released and the installation is complete once the belt is centered on all pulleys. The engine is run to ensure normal operation.

Is it safe to drive with a serpentine belt problem?

No. If the belt has visible damage, you risk sudden and unexpected breakage that could possibly leave you stranded. Serpentine belt problems that result in the alternator not charging may cause the battery to discharge, resulting in loss of electrical power to the vehicle. Furthermore, if a worn out belt breaks and that belt drives the water pump, the engine will overheat in a matter of seconds.

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