GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Tilt the cab. Refer to Cab Tilting .

  2. Object Number: 1388292  Size: SH
  3. If equipped, loosen the air cleaner duct clamp.
  4. If equipped, remove the air cleaner duct bracket bolt and remove the air cleaner duct from the air cleaner assembly.

  5. Object Number: 1253438  Size: SH
  6. Loosen the air cleaner assembly duct clamp.

  7. Object Number: 1247855  Size: SH
  8. Remove the air cleaner assembly nuts and the air cleaner assembly from the air cleaner assembly bracket.

  9. Object Number: 1247829  Size: SH
  10. If required, remove the air cleaner assembly bracket nuts and the air cleaner assembly bracket and stud plate from the frame rail.

  11. Object Number: 1253438  Size: SH
  12. If required, loosen the air cleaner assembly connector clamp and remove the air cleaner assembly connector and clamp from the turbocharger.
  13. If required, remove the 2 bolts and the air cleaner duct tube from the frame.

  14. Object Number: 1388292  Size: SH
  15. If required, remove the 3 bolts and the air cleaner bracket from the frame.

Installation Procedure


    Object Number: 1388292  Size: SH
  1. If removed, install the air cleaner bracket to the frame with 3 bolts.

  2. Object Number: 1253438  Size: SH
  3. If removed, install the air cleaner duct tube to the frame with 2 bolts.
  4. If required, install the air cleaner assembly connector to the turbocharger with the air cleaner assembly connector clamp.

  5. Object Number: 1247829  Size: SH
  6. If required, install the air cleaner assembly bracket to the frame rail with the air cleaner assembly bracket stud plate and nuts.

  7. Object Number: 1247855  Size: SH
  8. Install the air cleaner assembly to the air cleaner assembly bracket with the air cleaner assembly nuts.

  9. Object Number: 1253438  Size: SH
  10. Install the air cleaner assembly duct clamp.
  11. Lower the cab.