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 MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 735 (HEATING, VENTILATION AND AIR CONDITIONING)CLIMATE CONTROLA/C COMPRESSOR RELIEF VALVE REPLACEMENT

2006 Chevrolet Cobalt SS, 4D Sedan, Standard

A/C Compressor Relief Valve Replacement

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION A/C Compressor Relief Valve Replacement

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If the A/C compressor relief valve released refrigerant to the atmosphere, determine and correct the cause of the excessive system pressure, then replace the relief valve.

Recover the refrigerant with a recovery/recycling/charging station (see RECEIVER/DRYER DESICCANT REPLACEMENT ).
Remove the relief valve cover (A), the relief valve (B), and the O-ring (C). Plug the opening to keep foreign matter from entering the system and the A/C compressor oil from running out.

Fig 1: Relief Valve Cover, Relief Valve With Torque Specifications And O-Ring
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Clean the mating surfaces.
Replace the O-ring with a new one at the relief valve, and apply a thin coat of refrigerant oil before installing it.
Remove the plug installed in step 2, then install and tighten the relief valve.
Charge the system (see SYSTEM CHARGING ).

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.