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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 601 (Engine Cooling System) >> Repair Instructions >> Thermostat Bypass Pipes Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Buick Regal and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System  in Engine Cooling.
  2. Remove the air cleaner intake duct.
  3. Remove the LH engine mount strut. Refer to ENGINE MOUNT STRUT REPLACEMENT .
  4. Remove the spark plug wires from the left bank. Refer to SPARK PLUGS
  5. Use the J 38185 in order to reposition the hose clamp from the water outlet housing.
  6. Remove the upper radiator inlet hose from the water outlet housing.
  7. Fig 1: Upper Radiator Inlet Hose From The Water Outlet Housing
    G01764802Courtesy of GENERAL MOTORS CORP.
  8. Remove the heater outlet hose (2) from the thermostat bypass pipe.
  9. Remove the throttle body inlet and outlet hoses (1) from the thermostat bypass pipe.
    Fig 2: Heater Outlet Hose, Throttle Body Inlet And Outlet Hoses And Thermostat Bypass Pipe
    G01764803Courtesy of GENERAL MOTORS CORP.
  10. Remove the thermostat bypass pipe nut.
    Fig 3: Thermostat Bypass Pipe Nut
    G01764804Courtesy of GENERAL MOTORS CORP.
  11. Use the J 38185 to reposition the hose clamp from the thermostat bypass pipe.
  12. Remove the thermostat bypass pipe hose from the pipe.
    Fig 4: Thermostat Bypass Pipe Hose
    G01764805Courtesy of GENERAL MOTORS CORP.
  13. Remove the thermostat bypass pipe bolt.
  14. Remove the thermostat bypass pipe.
    Fig 5: Thermostat Bypass Pipe And Bolt
    G01764806Courtesy of GENERAL MOTORS CORP.