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 MANUALSCHEVROLET1987SUBURBAN 3/4 TON 2WD V8-454 7.4LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCOMPRESSOR HVACSERVICE AND REPAIRCOMPRESSOR REPLACEMENT
1987 Chevrolet Suburban 3/4 Ton 2WD V8-454 7.4L
Compressor Replacement
1987 Chevrolet Suburban 3/4 Ton 2WD V8-454 7.4LSECTION Compressor Replacement
C, K, R & V SERIES
1. Disconnect battery ground cable, then discharge system refrigerant.
2. Remove hose connector from compressor and plug open connections.
3. Disconnect harness lead to clutch coil.
4. Loosen brace and pivot hardware, then remove drive belt.
5. Remove compressor mounting bolts, then remove compressor.
6. Reverse procedure to install, using new O-rings coated with clean 525 viscosity refrigerant oil. Compressor should be filled to specification with fresh refrigerant oil prior to installation.
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.