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How-to » Preventive Maintenance » Belts & Hoses » How to Replace an Alternator Belt
 Note: This is a general guide for all vehicles.

How to Replace an Alternator Belt

PARTS
  • Accessory Belt Tensioner
TOOLS
STEPS
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Safety Tip:
Always wear safety glasses when working on your vehicle. Wear other personal protective equipment (PPE) when necessary, for example latex gloves or closed toe shoes.

1
With the engine off and cold, open the hood and locate the alternator belt on the front of the engine.
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2
Inspect the alternator belt tension by pushing down on the belt midway between two pulleys. If it moves more than one-half inch, the belt is too loose. A loose belt effects alternator performance and damages the belt.
3
Inspect the alternator belt for contamination from oil or grease. Twist the belt over and check the underside of the belt for cracks, missing chunks of rubber, and glazed sides.
4
Loosen the alternator pivot bolt and the adjustment bolt.
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5
Move the alternator inward to loosen the belt.
6
Slide the alternator belt off of the pulleys. Remove the alternator belt.
7
Compare the old belt to the new one to verify that you have the correct belt. Install the new alternator belt.
8
Pull the alternator outward until the belt is tight. Make sure the alternator belt is seated properly in all the pulleys.
9
Torque the alternator adjustment bolt and the pivot bolt to the manufacturer's specifications.
10
Start the engine to verify the repair. Turn off the engine and recheck the alternator belt tension.
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