GM Service Manual Online
For 1990-2009 cars only

    Object Number: 315719  Size: SH
  1. Remove the thermostat bypass pipe to throttle body nut (2).
  2. Remove the thermostat bypass pipe to throttle body hose clamps (1).
  3. Remove the thermostat bypass pipe to engine front cover bolt (4).
  4. Remove the thermostat bypass pipe to cylinder head nut (3).
  5. Remove the thermostat bypass pipe hose clamps (5).

  6. Object Number: 187083  Size: SH
  7. Remove the thermostat bypass pipe hose.
  8. Remove the thermostat bypass pipe.

  9. Object Number: 187069  Size: SH
  10. Remove the oil level indicator and oil level indicator tube.