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Best Auto Repair, St. Petersburg

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 63 Verified Review(s)

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 Affordable Auto and Truck Repair, 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.

More AC Repair Services:

Truck and Car AC Repair Services

Freon Recharging Services For Your Car Or Truck

AC Evaporator Services


what our customers say

Great workmanship!
T
, 02/07/2022

I really loved my experience with Affordable Auto and Truck Repair. They kept me informed and actually came in well under estimate on my repair. They are friendly and easy to work with.
T
, 12/19/2021

Terrific service. Good prices, convenient and friendly.
N
, 12/03/2021

Bob and his staff are amazing! They are all very professional, friendly, and upfront with prices. We have been taking our cars there for a few years now and have always been very pleased!! As long as Bob is in charge we will be customers. Thank you for great and honest service!!!
R
, 09/27/2021

Great service. Squeezed me in when battery suddenly died. Installed new battery and cleaned up all the connections. In and out in 20 minutes. Fair price. Friendly and professional. Will use them again.
A
, 04/03/2021

Fair price, quality workmanship.
J
, 03/16/2021

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