Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1983CITATION 2D HATCHBACK, 2.8 X, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)HEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSA/C-HEATER SYSTEM - MANUALCOMPONENT REPLACEMENTHEATER COREREPLACEMENT (CAMARO & FIREBIRD)
1983 Chevrolet Citation 2D Hatchback, 2.8 X, Automatic
Replacement (Camaro & Firebird)
1983 Chevrolet Citation 2D Hatchback, 2.8 X, AutomaticSECTION Replacement (Camaro & Firebird)
- Drain cooling system. Remove heater hoses from heater core. Remove right-hand lower hush panel and right-hand lower trim of instrument panel. Remove lower right-hand instrument carrier-to-cowl screw.
- Remove 4 heater case cover screws. See Fig 1 . Upper left-hand screw is reached, using a long socket extension through panel opening. Lift corner of instrument panel slightly to align socket. Remove heater case cover.
- Remove core support plate and baffle screws. Remove heater core, support plate, and baffle. To install, reverse removal procedure. Seal any air leaks, and check for coolant leakage.
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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.