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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1990R 20 P/U 2WD V8-379 6.2L DSLREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCONTROL ASSEMBLYSERVICE AND REPAIR
1990 Chevrolet R 20 P/U 2WD V8-379 6.2L DSL
Control Assembly: Service and Repair
1990 Chevrolet R 20 P/U 2WD V8-379 6.2L DSLSECTION Service and Repair
Control Assembly:
Control Assembly:
REMOVE OR DISCONNECT
1. Battery ground cable.
2. Radio.
3. Instrument panel bezel.
4. Control from the dash.
^ Lower the control to gain access to the back control assembly.
^ CAUTION: Do not kink the cable.
5. Cable (236).
6. Vacuum harness hose.
7. Electrical harness connector.
8. Control.
9. Switch
INSTALL OR CONNECT
1. Fan switch to the new control.
2. Electrical harness.
3. Vacuum harness.
4. Cable (236).
5. Control to the dash.
6. Instrument panel bezel.
7. Radio.
8. Battery ground cable.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.