Change heater core

Tiny
BSSTAN
  • MEMBER
  • 1993 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 168,000 MILES
Enter your question. How to change a heater core on a 1993 chevy 2500
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Monday, January 17th, 2011 AT 3:44 AM

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Tiny
RASMATAZ
  • MEMBER
With Air Conditioning

HEATER CORE REPLACEMENT

REMOVE OR DISCONNECT

Engine coolant.
Instrument panel compartment.
Electrical connectors, as necessary.
Center floor air distribution duct.
ECM and mounting tray.
Hinge pillar trim panels.
Blower motor cover.
Blower motor (16).
Steering wheel.
Tilt back instrument panel.
Coolant recovery reservoir.
Heater hoses.
Screw (24).
Screws (18).
Nuts (19).
Heater case (17).
It may be necessary to have an assistant when removing heater case.
Heater cover (25).
Remove seven screws that hold heater cover to the heater case.
Heater core from retainer.

INSTALL OR CONNECT

Heater core into retainer.
Heater cover (25).
CAUTION: Make sure heater cover is properly sealed.

Install seven screws that hold heater cover to heater case.
Heater case (17).
May be necessary to have an assistant when installing heater case.
Nuts (19).
Screws (18).
Screw (24).

Tighten

Screws (18) to 1.9 Nm (17 in. Lbs.).
Nuts (19) to 2.8 Nm (25 in. Lbs.).
Screw (24) to 11 Nm (97 in. Lbs.).
Heater hoses.
Coolant recovery reservoir.
Instrument panel.
Steering wheel.
Blower motor (16).
Blower motor cover.
Hinge pillar trim panels.
ECM and mounting tray.
Center floor air distribution duct.
Electrical connectors, as necessary.
Instrument panel compartment.
Engine coolant.
Check the system for leaks.
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Monday, January 17th, 2011 AT 10:47 AM

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