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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 641 (Engine Cooling System) >> Repair Instructions >> Coolant Heater Cord Replacement (L47) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle.
  2. Disconnect the coolant heater cord (1) from the right coolant heater (3).
  3. Lower the vehicle.
  4. Cut the coolant heater cord strap (2) from the engine wiring harness.
    Fig 1: Disconnecting Coolant Heat Cord From Right Coolant Heater
    G01817622Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the coolant heater cord (1) from the left coolant heater (3).
  6. Cut the coolant heater cord straps (2) from the engine wiring harness.
  7. Remove the coolant heater cord (1) from the loom at the fuel rail support bracket.
  8. Remove the fuel injector sight shield. Refer to FUEL INJECTOR SIGHT SHIELD REPLACEMENT .
    Fig 2: Disconnecting Coolant Heat Cord From Left Coolant Heater
    G01817623Courtesy of GENERAL MOTORS CORP.
  9. Remove the coolant heater cord clips (3) from the fuel injector sight shield studs.
  10. Remove the coolant heater cord (2) from the vehicle.
    Fig 3: Removing Coolant Heater Cord From Vehicle
    G01817624Courtesy of GENERAL MOTORS CORP.
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