Parts for your 2006 Ford Falcon-Tx valve

2006 Ford Falcon TX valve — what it does and when to service it

Yes, the 2006 Ford Falcon (BA Mk II/BF series) runs a thermostatic expansion valve (TX valve) in its R134a air‑conditioning system. This isn’t an orifice‑tube setup. That’s backed by the Ford BA/BF Falcon Workshop Manual (Climate Control, Section 412‑00) and Ford Australia parts catalogues that list an H‑block style TXV at the evaporator connection. Trade references commonly used in AU/NZ workshops (VASA guidance and local A/C parts catalogues) also identify a TXV on these models.

On a 2006 Falcon, the TX valve sits at the firewall on the passenger side, where the A/C pipes enter the cabin. Its job is to meter refrigerant into the evaporator based on superheat, keeping the evaporator cold without icing up. That means steadier vent temps, better comfort at idle and in traffic, and more efficient operation in hot Aussie and Kiwi summers.

While the valve itself isn’t a regular “wear item”, it can stick or block from debris or moisture after compressor issues or if the receiver‑drier has been left too long. Typical tell‑tales include weak cooling at idle, big swings in vent temperature, frosting on lines near the firewall, or gauge readings showing abnormal high/low side behaviour.

• When replacing the TX valve, have an ARCtick licence holder recover the refrigerant first — venting is illegal and unsafe.
• Always renew the receiver‑drier when the system is opened. On many BF Falcons the drier is integrated with the condenser, so budget for a condenser or a serviceable drier element if fitted.
• Replace O‑rings, lightly oil them with the correct PAG oil, and refit the thermal insulation around the valve block.
• Pull a deep vacuum and verify it holds before recharging to the specified mass of R134a. A quick pressure test with dry nitrogen helps catch leaks early.

Owners often ask about “maintenance” for a TX valve. Beyond keeping the system leak‑free and dry, there’s no periodic service on the valve itself. The smart move is a biennial A/C performance check, a drier change any time the system’s opened, and extra care after a compressor failure: flush the lines and condenser where possible, and don’t refit until the system is clean. Quality parts (genuine or reputable aftermarket) and correct procedures matter more than anything for a quiet, cold Falcon air‑con that lasts.

• Does a 2006 Ford Falcon use a TX valve or an orifice tube? It uses a TX valve (H‑block) at the evaporator on BA Mk II and BF models, as noted in the Ford workshop manual and parts listings.
• Where is the TX valve on a 2006 Falcon? At the firewall on the passenger side, sandwiched between the two A/C pipes and the evaporator inlet/outlet, covered by insulation.
• Should the receiver‑drier be replaced with the TX valve? Yes. Any time the system is opened, renew the drier, many BF Falcons use a condenser‑integrated drier.

Popular questions about a 2006 Ford Falcon TX valve

Does a 2006 Ford Falcon have a TX valve or an orifice tube?
It has a TX valve. Ford’s BA/BF workshop documentation and AU/NZ parts catalogues specify a thermostatic expansion (H‑block) valve at the evaporator connection, not an orifice tube/accumulator system.

Where exactly is the TX valve located on the BA/BF Falcon?
On the firewall at the passenger side of the engine bay, where the aluminium A/C lines enter the cabin. It’s a small H‑block secured between the inlet and outlet pipes and wrapped in insulating foam.

Do I need to change the receiver‑drier when replacing the TX valve?
Yes. Any time the system is opened, the drier should be renewed to protect the TX valve and compressor. Many BF Falcons use a condenser with an integrated drier, so check whether a separate cartridge is serviceable or if the condenser assembly needs replacing.