K 1500 Truck 4WD V6-262 4.3L VIN Z (1993)
Heater Core: Service and Repair
With Air Conditioning
HEATER CORE REPLACEMENT
REMOVE OR DISCONNECT
1. Engine coolant.
2. Instrument panel compartment.
3. Electrical connectors, as necessary.
4. Center floor air distribution duct.
5. ECM and mounting tray.
6. Hinge pillar trim panels.
7. Blower motor cover.
8. Blower motor (16).
9. Steering wheel.
10. Tilt back instrument panel.
11. Coolant recovery reservoir.
12. Heater hoses.
13. Screw (24).
14. Screws (18).
15. Nuts (19).
16. Heater case (17).
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It may be necessary to have an assistant when removing heater case.
17. Heater cover (25).
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Remove seven screws that hold heater cover to the heater case.
18. Heater core from retainer.
