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 MANUALSGMC2013TERRAIN FWD L4-2.4LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGSERVICE PORT HVACSERVICE AND REPAIR
2013 GMC Terrain FWD L4-2.4L
Service Port HVAC: Service and Repair
2013 GMC Terrain FWD L4-2.4LSECTION Service and Repair
Air Conditioning Refrigerant Service Valve Core Replacement
Special Tools
* J 39400-A - Halogen Leak Detector
* J 46246 - Valve Core Removal Tool
Removal Procedure
1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.
2. Use J 46246 - Valve Core Removal Tool or equivalent to remove the valve core.
Installation Procedure
1. Use J 46246 - Valve Core Removal Tool or equivalent to install and tighten the valve core.
2. Evacuate and charge the A/C system. Refer to Refrigerant Recovery and Recharging Refrigerant Recovery and Recharging.
Note:
To prevent loss of refrigerant charge, tighten the cap. Replace the cap if the seal is missing or damaged.
3. Test the affected A/C fittings for leaks using J 39400-A - Halogen Leak Detector.
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.