SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2001S10 PICKUP 2D PICKUP, 2.2 5, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 754 (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 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Heater Core Outlet Cover & HVAC Module
    GM295347Courtesy of GENERAL MOTORS CORP.
  1. Remove the HVAC module. Refer to HVAC Module Assembly Replacement .
  2. Remove the heater core outlet cover screws.
  3. Remove the heater core outlet cover.
    4. Fig 2: Heater Core Cover Screws
    GM295349Courtesy of GENERAL MOTORS CORP.
  4. Remove the heater core cover screws.
  5. Remove the heater core cover.
    6. Fig 3: Heater Core Cover Cavity Seals (1,2,3)
    GM143978Courtesy of GENERAL MOTORS CORP.
  6. Remove and discard the seals (1,2,3) from the heater core cover.
    7. Fig 4: Heater Core Outer Seal
    GM296242Courtesy of GENERAL MOTORS CORP.
  7. Remove and discard the heater core outer seal (5) from the heater core.
    8. Fig 5: Heater Core Pipe Retainer Clamp & Screw
    GM295351Courtesy of GENERAL MOTORS CORP.
  8. Remove the heater core retaining clamp screw (1).
  9. Remove the heater core retaining clamp.
  10. Remove the heater core pipe retainer clamp screw (2).
    11. Fig 6: Lower HVAC Module Case & Heater Core
    GM295353Courtesy of GENERAL MOTORS CORP.
  11. Remove the heater core from the HVAC module case - lower.
    12. Fig 7: Lower HVAC Module Case & Heater Core Lower Seal
    GM143987Courtesy of GENERAL MOTORS CORP.
  12. Remove and discard the heater core lower seal (4) from the HVAC module case - lower.
    13. Fig 8: Lower HVAC Module Case & Heater Core Center Seal
    GM143992Courtesy of GENERAL MOTORS CORP.
  13. Remove and discard the heater core center seal (3) from the HVAC module case - lower.
    14. Fig 9: Lower HVAC Module Case & Heater Core Upper Seal
    GM143985Courtesy of GENERAL MOTORS CORP.
  14. Remove and discard the heater core upper seal (2) from the HVAC module case - lower.
    15. Fig 10: Lower HVAC Module Case & Heater Core Side Seal
    GM143990Courtesy of GENERAL MOTORS CORP.
  15. Remove and discard the heater core side seals (1) from the HVAC module case - lower.
    16. Fig 11: Heater Core Pipe Retainer Clamp
    GM295355Courtesy of GENERAL MOTORS CORP.
  16. Remove the heater core pipe retainer clamp from the heater core pipes.

    Using a flat bladed tool, release the retaining tab and open the clamp.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.