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 MANUALSPONTIAC1993LEMANS FWD L4-98 1.6LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCOMPRESSOR HVACSERVICE AND REPAIRMAJOR COMPRESSOR REPAIR PROCEDURESPRESSURE RELIEF VALVE
1993 Pontiac Lemans FWD L4-98 1.6L
Pressure Relief Valve
1993 Pontiac Lemans FWD L4-98 1.6LSECTION Pressure Relief Valve
Compressor Rear View:
Remove or Disconnect
1. Recover refrigerant.
2. Remove old pressure relief valve.
Install or Connect
1. Lubricate O-ring of new pressure relief valve and O-ring assembly with new 525 viscosity refrigerant oil. Install new valve and torque in place, 16.0 N.m (11.7 lbs.ft.).
2. Evacuate and recharge the system.
3. Leak test 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.