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 MANUALSSATURN1993SC L4-1.9L SOHC VIN 9REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCOMPRESSOR HVACSERVICE AND REPAIRCOMPRESSOR REPAIRCOMPRESSOR PRESSURE RELIEF VALVE
1993 Saturn SC L4-1.9L SOHC VIN 9
Compressor Pressure Relief Valve
1993 Saturn SC L4-1.9L SOHC VIN 9SECTION Compressor Pressure Relief Valve
REMOVAL
1. Recover refrigerant using an approved refrigerant recovery system.
CAUTION: DO NOT REMOVE HOSES OR LINES BEFORE SYSTEM IS FULLY DISCHARGED.
2. Remove high side hose bolt from compressor high side and remove hose.
3. Remove pressure relief valve.
INSTALLATION
1. Lubricate pressure relief valve O-ring with new SATURN compressor oil. Install valve and torque to specification.
Torque: 7.2 N.m (63 in-lbs)
2. Lubricate and install new O-ring on high side hose. Install high side hose to compressor high side port. Torque to specification.
Torque: 25 N.m (19 ft-lbs)
3. Evacuate, charge, and leak test the A/C system.
1. Recover refrigerant using an approved refrigerant recovery system.
CAUTION: DO NOT REMOVE HOSES OR LINES BEFORE SYSTEM IS FULLY DISCHARGED.
2. Remove high side hose bolt from compressor high side and remove hose.
3. Remove pressure relief valve.
INSTALLATION
1. Lubricate pressure relief valve O-ring with new SATURN compressor oil. Install valve and torque to specification.
Torque: 7.2 N.m (63 in-lbs)
2. Lubricate and install new O-ring on high side hose. Install high side hose to compressor high side port. Torque to specification.
Torque: 25 N.m (19 ft-lbs)
3. Evacuate, charge, and leak test the A/C system.
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.