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HOMESERVICE MANUALSCHEVROLET2001S10 PICKUP 2D PICKUP, 2.2 5, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 867 (HEATING, VENTILATION AND AIR CONDITIONING)REPAIR INSTRUCTIONSHEATER CORE REPLACEMENTREMOVAL PROCEDURE
2001 Chevrolet S10 Pickup 2D Pickup, 2.2 5, Automatic

Removal Procedure

2001 Chevrolet S10 Pickup 2D Pickup, 2.2 5, AutomaticSECTION Removal Procedure
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
  2. Remove the heater outlet hose from the heater core. Refer to Heater Hose Replacement - Outlet (L61)  or Heater Hose Replacement - Outlet (L81) .
  3. Remove the heater inlet hose from the heater core. Refer to Heater Hose Replacement - Inlet (L61)  or Heater Hose Replacement - Inlet (L81) .
  4. Remove the instrument panel retainer. Refer to Instrument Panel (I/P) Retainer Replacement in Instrument Panel, Gages, and Console.
  5. Remove the shift control bracket. Refer to Transmission Shift Control Bracket Replacement in Manual Transmission - Getrag 5, Transmission Shift Control Bracket Replacement in Automatic Transaxle - AF33-5.
    6. Fig 1: Heater Duct, Screws & Heater Core Cover
    GM933065Courtesy of GENERAL MOTORS CORP.
  6. Remove the heater duct screws.
  7. Remove the heater duct.
    8. Fig 2: Heater Core Cover, Screws & Evaporator Case Assembly
    GM933022Courtesy of GENERAL MOTORS CORP.
  8. Remove the heater core cover screws.
  9. Remove the heater core cover.
    10. Fig 3: Heater Core Pipe Cover
    GM932938Courtesy of GENERAL MOTORS CORP.
  10. Remove the heater core pipe cover screw.
  11. Remove the heater core pipe cover.
  12. Remove the heater core pipe foam seal.
    13. Fig 4: Heater Core & End Tanks
    GM932945Courtesy of GENERAL MOTORS CORP.
  13. Grasp the heater core at end tanks and remove heater core. Spray the perimeter of the heater core seal and the heater core pipes at the front of dash with a soap and water mixture to ease removal.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.