GM Service Manual Online
For 1990-2009 cars only

Vacuum Hose Harness Replacement Jumper Harness

Removal Procedure

  1. It is not necessary to replace the entire vacuum harness if there is a localized leakage or collapse in the vacuum hose.
  2. If there is a localized leak or collapse in the vacuum hose, repair the vacuum hose:

    1.1. Cut the vacuum hose.
    1.2. Insert a plastic retainer into the vacuum hose.

    Object Number: 282918  Size: SH
  3. Remove the HVAC control. Refer to Control Assembly Replacement .
  4. Open the I/P compartment.
  5. Push in on both sides of the IP compartment. This will cause the I/P compartment to drop open completely to allow access to the vacuum harness.

  6. Disconnect the vacuum harness connector from the vacuum selector valve.

  7. Object Number: 282926  Size: SH
  8. Disconnect the vacuum harness jumper from the main harness connector.

Installation Procedure


    Object Number: 282926  Size: SH
  1. Connect the vacuum harness jumper to the main harness connector.

  2. Object Number: 282918  Size: SH
  3. Connect the vacuum harness connector to the vacuum selector valve.
  4. Close the I/P compartment.
  5. Install the HVAC control. Refer to Control Assembly Replacement .

Vacuum Hose Harness Replacement Main Harness

Removal Procedure

  1. Remove the I/P carrier. Refer to Instrument Panel Carrier Replacement .

  2. Object Number: 282925  Size: SH
  3. Disconnect the vacuum hoses from the actuators.
  4. Remove the vacuum harness.

Installation Procedure


    Object Number: 282925  Size: SH
  1. Install the vacuum harness.
  2. Connect the vacuum hoses to the actuators.
  3. Install the I/P carrier. Refer to Instrument Panel Carrier Replacement .