Parts for your 2007 Honda Cr-v-Tx valve

2007 Honda CR‑V TX Valve (Thermal Expansion Valve)

For the 2007 Honda CR‑V, a TX valve absolutely is used — it’s a block‑style thermal expansion valve bolted to the evaporator. This isn’t guesswork: Honda’s CR‑V 2007–2011 Service Manual (A/C section covering “Expansion Valve Replacement”) specifies the part and its procedure, Honda’s EPC/parts catalogues list an “A/C Expansion Valve” for the RE‑series CR‑V, and major component catalogues from DENSO and Four Seasons carry direct‑fit expansion valves for this exact model. So yes, a TX valve is relevant and fitted from factory.

The TX valve’s job is to meter refrigerant into the evaporator based on temperature and pressure, keeping superheat where it should be so the cabin gets cold air without flooding the compressor with liquid. In day‑to‑day terms, it smooths out cooling performance across different conditions — from a chilly morning in Dunedin to a scorching arvo in Darwin.

Because the valve lives on the evaporator inside the dash (passenger side), it’s not a casual driveway swap. Replacement means professionally recovering the refrigerant, opening the system, changing O‑rings, and then vacuuming and recharging by weight to the spec on the under‑bonnet label. On these Hondas, it’s also best practice to renew the receiver/desiccant (the condenser has a serviceable desiccant bag) whenever the system is opened, and especially if a compressor has failed. A licensed A/C tech should handle this work — in Australia that means ARCtick‑authorised handling of refrigerant.

Typical signs the CR‑V’s TX valve may be playing up include:

• Weak or inconsistent cooling, especially at idle or when it’s really hot outside
• Frosting on the evaporator lines or a “hiss and surge” feel at the vents
• Pressure readings that are too high/low for the ambient conditions (tech diagnosis)

There’s no real “maintenance” on the valve itself. What helps is preventative care: keep the cabin filter fresh so airflow across the evaporator is healthy, run the A/C regularly through the year to circulate oil, keep the condenser clean so head pressures stay reasonable. If the system’s been open or contaminated, flushing lines (where appropriate), replacing the desiccant, and fitting a new TX valve can save headaches later. After any TX valve work, insist on a proper vacuum, a precise R‑134a charge by weight, and a leak test — that’s how a CR‑V’s A/C stays crisp, quiet, and reliable.

Technical references: Honda CR‑V 2007–2011 Service Manual (HVAC/A‑C: Expansion Valve Replacement), Honda EPC parts listings for “A/C Expansion Valve” on 2007 CR‑V (RE series), and DENSO/Four Seasons application catalogues for 2007 Honda CR‑V.

Popular questions about the 2007 Honda CR‑V TX valve

Does the 2007 CR‑V use a TX valve or an orifice tube?
It uses a thermal expansion valve at the evaporator, not an orifice tube. That’s how Honda regulates refrigerant flow on this generation CR‑V, as documented in the factory service manual and parts catalogues.

Where is the TX valve on a 2007 CR‑V?
It’s mounted on the evaporator assembly inside the cabin, passenger side. Access is from inside the vehicle, the job typically involves removing trim/glovebox and working at the HVAC case rather than popping it out in the engine bay.

When should the TX valve be replaced?
Replace it when there are symptoms of metering faults (poor or erratic cooling, frosting, abnormal pressures), contamination after a compressor failure, or whenever the system is opened and the valve shows signs of sticking or restriction. Always pair this with new O‑rings, fresh desiccant, and a correct refrigerant recharge.