Your car or truck's AC system is under extreme pressure and the thermal expansion valve or orifice tube monitors the amount of pressure and the temperature of your A/C system. It calculates the precise amount of refrigerant that can safely go into the evaporator. A failing expansion valve or orifice tube often causes a vehicle's air conditioner to blow hot air.
Replace or Repair
- Expansion Valves: Too much refrigerant causes your evaporator to get too cold whereas too little refrigerant would result in inadequate cooling. The expansion valve is a complex valve that regulates refrigerant flow. This process of metering the refrigerant adjusts the flow according to the temperature of the refrigerant in the evaporator coil. Talk to one of the pro mechanics at Hans Imports, as this part can be replaced on its own and does not require the entire replacement of the AC assembly.
- Orifice Tubes: Unlike the expansion valve, the orifice tube is a simple fixed device with no moving parts. It therefore cannot vary the flow of refrigerant into the evaporator, but rather causes a permanent restriction in the system. However, like the expansion valve the orifice tube regulates refrigerant flow through the system and filters debris which may come through in its screen. Often fixing a "bad orifice tube" requires replacing the entire evaporator assembly.
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What our clients are saying about us
We have established longterm and stable partnerships with various clients thanks to our excellence in solving their automotive needs!
Anyone who dumps on this auto repair shop should literally start driving a horse and carriage. What people don't understand is that when you bring in older import vehicles from the north east United States they are prone to rust deterioration do to climatic factors. As a result, many parts are harder to replace, many need to be fabricated and even more common is the rarity of older European models (which drives the price of parts up as well as renders low availability). I've been an automotive repair technician (ASE certification, various big name certifications and even fabricated parts whilst working in small shops) for quite some time. As well, I've even taught Automotive Repair as a core coarse at the secondary level. All of that said, I'm quite certain my opinion holds merit. Thus, I can honestly say that Omar is an absolute genius. I run a small shop in a rural area and seek advice from the owner of Hans Imports (Omar). This goes beyond the scope of older European models. I often probe Omar for repair strategies, knowledge and diagnostic information on newer Imports. For what its worth, you're in good hands with Hans Imports in North Kingstown. Any of the negative cockamamie complaints are clearly the result of someone thinking they are above the knowledge, experience as well as expertise of the working man!
I had a mystery leak in the sunroof of my GTI. Multiple trips to multiple dealers couldn't figure it out. The more mysterious the problem, the more time ($) it takes to solve it. We were ready to dump the car, but we are glad we took it to Omar and the Hans team. It was a long process, but the car no longer leaks! I'll bring my car to Hans Imports next time it needs some work.