Senin, 16 Mei 2011

How to Change the Serpentine Belt on a 2007 Toyota Corolla

How to Change the Serpentine Belt on a 2007 Toyota Corolla

How to Change the Serpentine Belt on a 2007 Toyota Corollathumbnail
Toyota

The 2007 Toyota Corolla uses one belt, the serpentine belt, also called the multi-accessory drive belt, to control all the engine accessories, i.e., power steering, air conditioner compressor, water pump and alternator. Located at the front of the crankshaft, the serpentine belt winds around the pulleys connected to the various accessories and ultimately around a tension pulley that keeps the belt at the correct contact tension so that all the engine accessories engage properly. Changing the serpentine belt on a Corolla is a fairly simple do-it-yourself project. Auto-Repair-Help.com recommends examining the serpentine belt for fraying, cracking or missing chunks twice per year and replacing the belt every 25,000 miles.

Difficulty:
Moderately Easy

Instructions

things you'll need:

  • Serpentine belt
  • Serpentine belt diagram
  • 1/2-inch socket wrench
    • 1

      Ensure that the Corolla's engine is cold, that it is in park, that the ignition is in the off position, and that the key is removed from the ignition to prevent any possibility of the engine engaging during serpentine belt replacement.

    • 2

      Open the hood and locate the serpentine belt routing diagram sticker on the side of the engine casing, which is present to ensure proper installation of the new belt. Study the diagram for a moment before removing the existing belt as it is essential that the new belt be installed exactly as the diagram indicates.

    • 3

      Find the tensioner pulley, the main pulley that controls the serpentine belt, and fit a 1/2-inch socket wrench over the self-tensioner on the outside of the pulley.

    • 4

      Pull the wrench to the left to move the pulley forward, which loosens the belt, and then remove the belt.

    • 5

      Compare the old serpentine belt with the new, replacement belt for length, width and number of grooves on the belt's underside to be certain that the replacement belt is the right part.

    • 6

      Fit the new belt onto each pulley according to the serpentine belt routing diagram on the manufacturer's sticker. Fit the new belt onto the tensioner pulley last, again applying pressure on the pulley's self-tensioner with the 1/2-inch socket wrench to loosen the pulley.

    • 7

      Release the pressure on the self-tensioner, and allow the tensioner pulley to ease back into place, thereby tightening the new serpentine belt with the appropriate tension.

    • 8

      Remove the wrench, and close the hood.

Tips & Warnings

  • If the serpentine belt routing diagram on your Corolla is torn or blackened, or is for any reason unreadable, draw a rough picture of exactly how the existing belt is routed through the various engine accessory pulleys before removing it.

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