heater CHEVROLET CAMARO 1982 Repair Guide

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 154
HEATER CORE

REMOVAL & INSTALLATION
CAUTION - When draining the coolant, keep in mind that cats and dogs are
attracted by the ethylene gl ycol antifreeze, and are quite likely to drink any that
is left in an uncovered container or in puddles on the ground. This will prove
fatal in sufficient quantity. Always drai n the coolant into a sealable container.
Coolant should be reused unless it is contaminated or several years old.
1. Drain the cooling system.
2. Remove both heater hoses.
3. Remove the lower right hush panel.
4. Remove the lower right instru ment panel and the ESC module if
necessary.
5. Remove the lower right in strument panel-to-cowl screw.
6. Remove the heater case screws.
The upper left screw may be reached with a long socket extension. Carefully lift
the lower right corner of the instrument panel to align the extension.
7. Remove the case cover.
8. Remove the support plate and baffle screws.
9. Remove the heater core and ba ffle plate from the housing.
To install: 10. Position the heater core and baffle plate into the housing.
11. Install the support plate and baffle screws.
12. Install the case cover.
13. Install the heater case screws.
14. Install the lower right in strument panel-to-cowl screw.
15. Install the lower right instrument panel and the ESC module if necessary.
16. Install the lower right hush panel.
17. Install both heater hoses.
18. Fill the cooling system and check for leaks.

Fig. 1: Heater module assembly

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 155

Fig. 2: Removing the heater core inlet hoses

Fig. 3: Removing the sound insulator attaching screws

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Fig. 4: Once the sound insulator has been removed, the heater module can be
accessed

Fig. 5: Removing the heater module cover

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Fig. 6: Be careful not to allow any cool ant to drain on the carpet when removing
the heater core

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HOT WATER VALVE
REMOVAL & INSTALLATION
Not all model years and engine applic
ations use hot water valves.
1. Drain the coolant.
2. Disconnect the vacuum hose at the hot water valve by sliding the tab of
the connector past the L-shaped bend in the ac tuator vacuum tube.
Then, slide the hose connector off the tube while continuing to hold the
tab back against the connector end.
3. Disconnect the heater hos es from the valve.
To install: 4. Install the valve with the vacuum actuator faci ng up. The heater hoses
will hold the valve in position.
5. Install the vacuum hose to the actuator.
6. Refill the cooling system. R un the engine long enough to purge any
trapped air, then add more coolant if necessary.
7. Check for leaks.

Fig. 1: Hot water valve loca tion on carbureted V8 engines

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Fig. 2: Cable attachment at the left vent duct

Fig. 3: Cable attachment at the right vent duct
VENT CONTROL CABLE 1. Remove the right side sound insulator.
2. Remove the push nut retainer holdi ng the cable self-adjusting clip to the
vent valve lever pin.
3. Disengage the cable clam p from the slot in the bracket on the heater
module.

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4. Remove the radio and heater
control panel trim plate.
5. Remove the heater control head attaching screws and remove the control head.
6. Pull the vent control cable clip from the control assembly, then tilt the
assembly to slip the vent control cable end loop off the pin of the mode
lever.
7. Remove the vent control cable.
To install: 8. Install the vent control cable to the control assembly and install the
control head.
9. Install the radio and heat er control trim plate.
10. Fit the cable self-adjusting clip onto the vent valve lever pin.
11. Snap the cable clamp into the slot in the bracket on the heater module.
12. Install the push nut retainer to the vent valve lever pin.
13. Install the right side sound insulator.
14. Check operation and adjust the cable if necessary.
DEFROST CONTROL CABLE 1. Remove the left side sound insulator.
2. Remove the push nut retainer holdi ng the cable self-adjusting clip to the
defroster valve lever pin at the heater module.
3. Disengage the cable clam p from the slot in the bracket on the heater
module.
4. Remove the radio and heat er control trim plate.
5. Remove the control head assembly.
6. Disconnect the defroster control cabl e by pulling the cable clip from the
control assembly. Then tilt the contro l assembly to slip the control cable
end loop off the pin of the mode lever.
7. Remove the cable.
To install: 8. Install the defroster c ontrol cable to the contro l assembly and install the
control head.
9. Install the radio and heat er control trim plate.
10. Fit the cable self-adjusting clip onto the defroster valve lever pin.
11. Snap the cable clamp into the slot in the bracket on the heater module.
12. Install the push nut retainer to the defroster valve lever pin.
13. Install the left side sound insulator.
14. Check operation and adjust the cable if necessary.

GM – CAMARO 1982-1992 – Repair Guide (Checked by WxMax) 163

Fig. 4: Vent and defroster contro l cable attachments at the module
TEMPERATURE CONTROL CABLE 1. Remove the right side sound insulator.
2. Remove the cable cover attach ing screws and remove the cover.
3. Remove the push nut retainer holdi ng the cable self-adjusting clip to the
temperature valve lever pin.
4. Disengage the cable clam p from the slot in the bracket on the heater
module.
5. Remove the radio and heater control panel trim plate.
6. Remove the heater control head attaching screws and remove the control head.
7. Remove the temperature cont rol cable push nut retainer.
8. Pull the temperature cont rol cable clip from the control assembly, then tilt
the assembly to slip the vent contro l cable end loop off the pin of the
mode lever.
9. Remove the temperat ure control cable.
To install: 10. Install the temperature control cable to the control assembly. Install the
cable push nut retainer and install the control head.
11. Install the radio and heat er control trim plate.
12. Fit the cable self-adjusting clip ont o the temperature valve lever pin.
13. Snap the cable clamp into the slot in the bracket on the heater module.
14. Install the push nut retainer to the temperature valve lever pin.
15. Install the cable cover.
16. Install the right side sound insulator.
17. Check operation and adjust the cable if necessary.

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Fig. 5: Temperature control c able attachment at the module
ADJUSTMENTS
The control cables are connected at the heater module to the air valve t\
hat each
cable operates. The cable ends are attach ed to the air valve crank arm by a
self-adjusting clip that grips the c able core firmly. Adjustment can be
accomplished by moving the mode lever (t o adjust the vent or defrost control
cables) or the temperature lever (to adjus t the temperature control cable) briskly
back and forth to both extremes of leve r travel in the control assembly. When
the cable is properly adjusted, the air va lve may be heard hitting it's stop at both
extremes of travel.

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CHAIN AND CABLE
CHAIN AT THROTTLE
1. Check for proper installation of cabl e assembly. Inspect the throttle; it
must be in the idle position.
2. Install the chain in the swivel so that the slack does not exceed
1/2 the
diameter of the ball stud.
3. Install the retainer on the swivel and make sure the throttle has not
moved from idle.
CHAIN AT SERVO 1. Check for proper installation of cabl e assembly. Inspect the throttle; it
must be in the idle position.
2. Install the cable on the third link of the chain; adjust the jam nuts of the
servo until there is no noticeab le slack in the chain.
3. Tighten the jam nuts and check that the throttle has not moved out of the
idle position.
MODULE
REMOVAL & INSTALLATION
1984-1992 MODELS
The module is mounted next to the heater and A/C duct on most models, but is
integral with the ECM on certain late-model engines.
1. Disconnect the negative battery cable.
2. Remove the right side sound insulator.
3. Remove the module attaching screws and remove the module.
4. Disconnect the electrical connector.
To install: 5. Connect the electrical connector.
6. Install the cruise control module and the attaching screws.
7. Install the right side sound insulator.
8. Connect the negative battery cable.