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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 701 (Engine Cooling System) >> Repair Instructions >> Thermostat Bypass Pipes Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the thermostat bypass pipe.
    CAUTION: Refer to FASTENER NOTICE .
  2. Install the thermostat bypass pipe-to-engine front cover bolt.

    Tighten 

    Tighten the thermostat bypass pipe-to-front cover bolt to 11 N.m (98 lb in).

    Fig 1: Installing Thermostat Bypass Pipe
    G01811375Courtesy of GENERAL MOTORS CORP.
  3. Connect the thermostat bypass pipe hose.
  4. Using the J 38185,  reposition and secure the hose clamp at the thermostat bypass pipe.
    Fig 2: Connecting Thermostat Bypass Pipe Hose
    G01811376Courtesy of GENERAL MOTORS CORP.
  5. Install the thermostat bypass pipe to the throttle body stud.
  6. Install the thermostat bypass pipe-to-throttle body nut.

    Tighten 

    Tighten the thermostat bypass pipe-to-throttle body nut to 25 N.m (18 lb ft).

    Fig 3: Installing Thermostat Bypass Pipe-To-Throttle Nut
    G01811377Courtesy of GENERAL MOTORS CORP.
  7. Connect the heater outlet hose to the thermostat bypass pipe (2).
  8. Connect the throttle body inlet and outlet hoses to the thermostat bypass pipe (1).
    Fig 4: Connecting Thermostat Bypass Pipe Hoses
    G01811378Courtesy of GENERAL MOTORS CORP.
  9. Connect the inlet hose at the thermostat housing.
  10. Fig 5: Connecting Inlet Hose
    G01811379Courtesy of GENERAL MOTORS CORP.
  11. Using the J 38185,  reposition and install the inlet hose clamp at the thermostat housing.
  12. Install the spark plug wires at the left bank.
  13. Install the air cleaner assembly.
  14. Fill the cooling system. Refer to Draining and Filling Cooling System  .
  15. Inspect for leaks.