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 Trend Auto, 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 initially drew me to this repair shop was the rating. And now I know why it's rated so high. I went in thinking I needed a new starter. It ended up being a bad cable. I feel like many shops could have taken advantage of this opportunity to pull a fast one, but Robert and his crew were honest and ethical. I will forever take my business there and I highly suggest Trend Auto Repair.
Took 2002 Chevy Trailbkazer in for coolant leak and water pump replacement. Was treated very professionally by Robert. Explained everything in detail. Did not take advantage of the situation and only replaced what was needed instead of trying to charge for extra unnecessary parts. Now have a smooth running vehicle with a nice warranty. Highly recommend their services.
Very friendly staff and willing to work with you price wise! I will definitely continue to bring my car here! Thank you for great service.
If you want a solid estimation on your vehicle and someone who will be honest first even before making money on your vehicle look no further! Ask for Robert and he will take great care of you. I could of kept on putting money into my car and trying to fix things and he pointed me in the right direction to get a new car, when he could of kept on making money off me! Very friendly guy and very happy with my car! Hard to find genuine people nowadays, so I'd recommend Trends Auto to anyone!