GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Note routing position prior to removal of line for installation.


    Object Number: 1694858  Size: SH
  1. Remove the gage hose (2) from the line adaptor (3).
  2. Remove the line from the clip (1).

  3. Object Number: 1694848  Size: SH
  4. Remove the lower bolts (1) of the instrument panel (2).
  5. Pull the I/P cluster bezel out at the portion covering the panel.

  6. Object Number: 1693472  Size: SH
  7. Remove panel enough to gain access to the air line (2).
  8. Remove the air line (2) from the flow gage (1).

  9. Object Number: 1694860  Size: SH
  10. Remove the airflow line grommet (1) from the bulkhead and remove line (2) from the vehicle.

Installation Procedure


    Object Number: 1694860  Size: SH
  1. Install the air line (2) with the grommet (1) and secure the grommet into the bulkhead opening.

  2. Object Number: 1693472  Size: SH
  3. Route the air line through the I/P in the same location as removed.
  4. Install the air line (2) onto the gage (1).
  5. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1694848  Size: SH
  6. Install the accessory panel (2) onto the I/P and install bolts (1).
  7. Tighten
    Tighten bolts to 8 N·m (71 lb in).

  8. Push the I/P cluster bezel back in place over the panel.

  9. Object Number: 1694858  Size: SH
  10. Route the air line (2) through the engine compartment as removed.
  11. Secure line using the clip (1).
  12. Push the line  (2) onto the tube adapter (3).