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 MANUALSFORD2012MUSTANG V6-3.7LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGEXPANSION VALVESERVICE AND REPAIR
2012 Ford Mustang V6-3.7L
Expansion Valve: Service and Repair
2012 Ford Mustang V6-3.7LSECTION Service and Repair
Thermostatic Expansion Valve
All vehicles
1. Recover the refrigerant.
2. If equipped, remove the 4 nuts and the strut tower cross brace.
5.0L (4V) vehicles
3. Remove the engine appearance cover.
5.4L (4V) vehicles
4. Drain the engine coolant. For additional information, refer to Cooling System.
5. Disconnect the heater hose fittings at the rear of the RH cylinder head and position the heater hoses aside.
6. Remove the Exhaust Gas Recirculation (EGR) system module tube.
All vehicles
7. Remove the Thermostatic Expansion Valve (TXV) fitting nut and disconnect the fitting.
- Discard the gasket seals.
- To install, tighten to 15 Nm (133 lb-in).
8. Remove the 2 TXV (Thermostatic Expansion Valve) bolts.
- To install, tighten to 7 Nm (62 lb-in).
9. Remove the TXV (Thermostatic Expansion Valve).
- Discard the gasket seals.
10. To install, reverse the removal procedure.
- Install new gasket seals.
- Add the correct amount of clean PAG oil to the refrigerant system.
11. Evacuate, leak test and charge the refrigerant 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.