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 MANUALSACURA2008CSX BASE, K20A3REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 17 (CLIMATE CONTROL SYSTEM)CLIMATE CONTROLEXPANSION VALVE REPLACEMENT
2008 Acura CSX Base, K20A3
Expansion Valve Replacement
2008 Acura CSX Base, K20A3SECTION Expansion Valve Replacement
WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the evaporator core (see EVAPORATOR CORE REPLACEMENT )
- Remove the insulator (A) and bolts, then remove the expansion valve (B) and O-rings (C)
- Install the expansion valve in the reverse order of removal, and note these items
- Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage
- Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture absorption
- Do not spill the refrigerant oil on the vehicle, it may damage the paint, if the refrigerant oil contacts the paint, wash it off immediately
- Make sure that there are no air leaks
- Charge the system (see SYSTEM CHARGING )
RENDER: 1.0x
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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.