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 MANUALSJEEP1985CJ-7 L6-258 4.2L VIN C 2-BBLREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCOMPRESSOR HVACSERVICE AND REPAIRPURGING COMPRESSOR
1985 Jeep CJ-7 L6-258 4.2L VIN C 2-bbl
Purging Compressor
1985 Jeep CJ-7 L6-258 4.2L VIN C 2-bblSECTION Purging Compressor
PURGING COMPRESSOR
The compressor must be purged of air whenever it has been isolated from the system for service.
1. Install oil plugs or reconnect refrigerant lines and manual valves to compressor as needed.
2. Cap service access ports on both manual valves, then rotate low (suction) side service valve counterclockwise to the back-seated position.
3. Rotate high (discharge) side manual valve to mid-position, then slightly loosen cap on high side gauge port to allow refrigerant to force air out of compressor.
4. Back seat high side manual valve, then tighten gauge port cap.
The compressor must be purged of air whenever it has been isolated from the system for service.
1. Install oil plugs or reconnect refrigerant lines and manual valves to compressor as needed.
2. Cap service access ports on both manual valves, then rotate low (suction) side service valve counterclockwise to the back-seated position.
3. Rotate high (discharge) side manual valve to mid-position, then slightly loosen cap on high side gauge port to allow refrigerant to force air out of compressor.
4. Back seat high side manual valve, then tighten gauge port cap.
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.