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 MANUALSCHEVROLET1998EXPRESS 1 TON VAN V8-5.7L VIN RREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCONTROL ASSEMBLYSERVICE AND REPAIRHEATER AND A/C CONTROL ASSEMBLY
1998 Chevrolet Express 1 Ton Van V8-5.7L VIN R
Heater and A/C Control Assembly
1998 Chevrolet Express 1 Ton Van V8-5.7L VIN RSECTION Heater and A/C Control Assembly
Left Side:
Remove or Disconnect
1. The instrument cluster trim plate.
2. The heater and A/C control from the instrument panel by the following procedures:
^ The retaining screw from the left edge of the control head.
^ Pivot the control head from the I/P.
^ Pull the control head out of the instrument panel far enough to reach the vacuum and the electrical connectors.
3. The electrical connectors.
4. The vacuum connectors.
Install or Connect
1. The vacuum connectors.
2. The electrical connectors.
3. The control head to the instrument panel by the following procedures.
^ Align the tab on the control with slot in the instrument panel.
^ Pivot the control head into the instrument panel.
^ The retaining screw to the left edge of the control head.
Tighten
^ The heater and A/C control head retaining screw to 4 N.m (35 lb in).
4. Instrument cluster trim plate.
RENDER: 1.0x
NO RELATED
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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.