GM Service Manual Online
For 1990-2009 cars only

Special Tools

EN-48932 Hydraulic Belt Tensioner Compressor

Removal Procedure


    Object Number: 1809412  Size: SH
  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  2. Install the EN-48932 (1) to the drive belt tensioner spring.
  3. Compress the drive belt tensioner spring fully using the EN-48932 (1).

  4. Object Number: 2032672  Size: SH
  5. Remove the tensioner spring bolts (1) from the tensioner.
  6. Remove the tensioner spring from the tensioner.
  7. Remove the drive belt from under the middle idler pulley.
  8. Remove the drive belt from the vehicle.

Installation Procedure


    Object Number: 2032672  Size: SH
  1. Install and position the drive belt around all of the pulleys except for the middle idler pulley.
  2. Install the tensioner spring on the tensioner.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the tensioner spring bolts (1) to the tensioner.
  5. Tighten
    Tighten the bolts to 22 N·m (16 lb ft).


    Object Number: 1809412  Size: SH
  6. Install the drive belt under the middle idler pulley.
  7. Loosen the forcing bolt on the EN-48932 (1) and remove from the drive belt tensioner spring.
  8. Install and position the drive belt around all of the pulleys except for the middle idler pulley.
  9. Ensure that the drive belt tensioner idler is fully seated against the drive belt.
  10. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .