GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  2. Drain the cooling system. Refer to Cooling System Draining and Filling .

  3. Object Number: 1087629  Size: SH
  4. Release and slide the thermal bypass pipe hose clamps (2) away from the hose connections.
  5. Remove thermal bypass hose (1).

Installation Procedure

  1. Apply engine coolant to the bypass hose in order to ease installation.

  2. Object Number: 1087629  Size: SH
  3. Install the thermal bypass pipe hose (1).
  4. Position the thermal bypass pipe hose clamps (2) over the hose end connections.
  5. Fill the cooling system. Refer to Cooling System Draining and Filling .
  6. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .