GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 374176  Size: SH
  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls-4.3 L.
  2. Remove the air cleaner outlet duct from the throttle body. Refer to Air Cleaner Outlet Resonator Replacement in Engine Controls-4.3 L.
  3. Install a 3/8 inch drive wrench on the drive belt tensioner arm and rotate the arm counterclockwise.
  4. Remove the drive belt.
  5. Slowly release the tension on the drive belt tensioner arm.

Installation Procedure


    Object Number: 43858  Size: SH
  1. Route the belt over all the pulleys except the tensioner arm.
  2. Observe drive belt routing for vehicles without air conditioning.

  3. Object Number: 43859  Size: SH
  4. Observe drive belt routing for vehicles with air conditioning.

  5. Object Number: 374176  Size: SH
  6. Install a 3/8 inch drive wrench on the drive belt tensioner arm and rotate the arm counterclockwise.
  7. Install the drive belt over the drive belt tensioner pulley.
  8. Slowly release the tension on the tensioner arm.

  9. Object Number: 172992  Size: SH
  10. Inspect for the drive belt being properly installed on the pulleys.

  11. Object Number: 172993  Size: SH
  12. Avoid mis-positioning the drive belt by one or more grooves.

  13. Object Number: 331327  Size: SH
  14. Confirm for the proper drive belt size and the correct drive belt routing by observing the location of the fix pointer and the index marks on the drive belt tensioner. With a new drive belt installed, the fix pointer should align within the indentation on the drive belt tensioner.

  15. Object Number: 369211  Size: SH
  16. With a used drive belt installed, the fix pointer should not align past the index mark.
  17. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Resonator Replacement in Engine Controls-4.3 L.
  18. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls-4.3 L.