Parts for your 2006 Ford Focus-Tx valve

2006 Ford Focus TX valve: what’s actually fitted

Short answer: a TX valve isn’t used on the 2006 Ford Focus. Technical references including the Ford Workshop Manual for the LS/LT Focus (Climate Control), Ford/Motorcraft parts catalogues, and service information platforms such as ALLDATA and Mitchell1 describe the Focus air‑con as a Cycling Clutch Orifice Tube (CCOT) system. That layout uses a fixed orifice tube in the liquid line and a low‑side accumulator, so there’s no thermostatic expansion valve (TXV) in this model.

Why did Ford go this way? The CCOT design regulates evaporator pressure and cooling by cycling the compressor clutch instead of modulating flow through a TX valve. It’s lighter on cost and components, is robust in day‑to‑day use, and suits the compact packaging under the Focus’s bonnet. The fixed orifice tube meters refrigerant, while the accumulator captures any liquid refrigerant to protect the compressor and houses the desiccant to control moisture.

If someone’s pointed them to a “TX valve” for a 2006 Focus, they’re almost certainly after the fixed orifice tube (sometimes just called the A/C orifice) or they’re chasing a fault that’s typically caused elsewhere. Common Focus A/C concerns for this era include a blocked orifice tube (metallic debris or sludge), low refrigerant charge, a tired condenser, or clutch cycling issues.

• Key components to know on this model:
  • Fixed orifice tube: typically located in the liquid line near the condenser outlet or at the evaporator inlet.
  • Accumulator (low side): prevents liquid slugging and contains the desiccant.
  • Clutch‑type compressor: cycles to manage evaporator pressure and cabin temp.
• Servicing pointers (AU/NZ):
  • Refrigerant handling must be done by licensed technicians.
  • When the system’s opened, replace the accumulator/drier and O‑rings, and add the correct PAG oil per the under‑bonnet label.
  • If cooling is weak, check condenser airflow, fan operation, and recover/charge by weight before condemning parts.

Bottom line: the 2006 Focus doesn’t use a TX valve. For repairs or upgrades, they’ll be dealing with the orifice tube and accumulator in a CCOT system, and proper diagnosis with gauges and weighed charge will save time and coin.

Popular questions

Does the 2006 Ford Focus have a TX valve?
No. It uses a CCOT system with a fixed orifice tube and an accumulator, so a TXV isn’t fitted from factory.

What replaces the function of a TX valve on this Focus?
The fixed orifice tube meters refrigerant flow, and the compressor clutch cycles to manage evaporator pressure. Together with the accumulator, they do the job a TXV would handle on other designs.

Where is the orifice tube on a 2006 Focus, and is it hard to change?
It’s typically in the liquid line near the condenser outlet or at the evaporator inlet, depending on build. Replacement involves recovering refrigerant, opening the line to extract the tube, fitting a new one with fresh O‑rings, then evacuating and recharging to the specified weight—best left to a licensed A/C tech.