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 MANUALSBUICK1985CENTURY V6-231 3.8LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCOMPRESSOR HVACSERVICE AND REPAIRCOMPRESSOR REPLACEMENT
1985 Buick Century V6-231 3.8L
Compressor Replacement
1985 Buick Century V6-231 3.8LSECTION Compressor Replacement
V6-231
1. Disconnect battery ground cable and discharge refrigerant.
2. Raise and support vehicle.
3. Disconnect electrical connectors from front and rear of compressor.
4. Remove bolt securing refrigerant lines to compressor, disconnect lines, then plug lines and open compressor ports.
5. Loosen upper front compressor mounting bolt, front lower belt tensioner bolt and rear bracket bolt, then remove drive belt.
6. Disconnect AIR hose and check valve from AIR pipe and remove 3 compressor mounting bolts and rear bracket spacers.
7. Remove compressor by sliding toward starter and tilting down.
8. Reverse procedure to install. Tension belt using 1/2 inch drive ratchet in opening provided in bracket to prevent damaging compressor housing.
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.