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 MANUALSCHEVROLET1999LUMINA V6-3.8L VIN KREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCONTROL ASSEMBLYSERVICE AND REPAIR
1999 Chevrolet Lumina V6-3.8L VIN K
Control Assembly: Service and Repair
1999 Chevrolet Lumina V6-3.8L VIN KSECTION Service and Repair
REMOVAL PROCEDURE
1. Remove the I/P cluster trim plate.
2. Remove the retaining bolt from the HVAC control assembly.
3. Release the retaining clips to remove the control assembly from the instrument panel.
4. Disconnect the electrical connector(s) and if equipped the vacuum connector from the HVAC control assembly.
5. Remove the HVAC control assembly.
INSTALLATION PROCEDURE
1. Connect the electrical connector(s) and if equipped the vacuum connector to the HVAC control assembly.
2. Install the HVAC control assembly into the instrument panel.
NOTE: Refer to Fastener Notice in Service Precautions.
3. Install the retaining bolt to secure the HVAC control assembly.
Tighten
Tighten the control assembly bolt to 2 N.m (18 lb in).
4. Install the I/P cluster trim plate.
1. Remove the I/P cluster trim plate.
2. Remove the retaining bolt from the HVAC control assembly.
3. Release the retaining clips to remove the control assembly from the instrument panel.
4. Disconnect the electrical connector(s) and if equipped the vacuum connector from the HVAC control assembly.
5. Remove the HVAC control assembly.
INSTALLATION PROCEDURE
1. Connect the electrical connector(s) and if equipped the vacuum connector to the HVAC control assembly.
2. Install the HVAC control assembly into the instrument panel.
NOTE: Refer to Fastener Notice in Service Precautions.
3. Install the retaining bolt to secure the HVAC control assembly.
Tighten
Tighten the control assembly bolt to 2 N.m (18 lb in).
4. Install the I/P 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.