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 MANUALSCHEVROLET1990S10/T10 P/U 4WD V6-262 4.3LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCONTROL ASSEMBLYSERVICE AND REPAIRCONTROL ASSEMBLY, HVAC
1990 Chevrolet S10/T10 P/U 4WD V6-262 4.3L
Control Assembly, HVAC
1990 Chevrolet S10/T10 P/U 4WD V6-262 4.3LSECTION Control Assembly, HVAC
Control Assembly Replacement:
Temperature Cable Replacement:
REMOVE OR DISCONNECT
1. Negative battery cable.
2. Instrument panel trim.
3. Screws (171).
^ Pull control assembly out the instrument panel.
4. Vacuum and electrical connections.
5. Cables (175 and 176).
6. Control assembly (170).
INSTALL OR CONNECT
1. Cables (175 and 1976) to the control assembly (170).
2. Vacuum (202) and electrical connections to the control assembly (170).
3. Control (170) to the instrument panel.
4. Instrument panel trim.
5. Negative battery cable.
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.