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Best Auto Repair, Murrieta

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Leading Experts in Lexus, Toyota, Honda, and Acura Vehicles.

European and Domestic vehicles welcome.

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 18 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 Alternative Automotive, 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

Jeff and his staff are honest and dependable. They are the best in town. A+
S
, 04/26/2023

Went in for an oil change and an AC filter change, it was a great price and they even let me know about a problem with my catalytic converter. My car smells amazing and the price was amazing and they fit me in the next day. Thank you so much!
Y
, 03/01/2023

Seemed very very reasonable and didn't do any anything that didn't need to be done and then Jeff even them made a list of all the stuff upcoming that will need to be done on my van and he just took care of the transmission pan gasket and I thought it might have been the oil pan gasket and and he said it was a transmission so very fair and I even saved money.
E
, 02/09/2023

The customer service was excellent, fair prices, booked my appointment same day, quick service with helpful feedback. Would recommend this place to anyone looking for automotive maintenance needs.
C
, 01/31/2023

Jeff is awesome and honest! Definitely going back again. Prices better than dealership rates. I totally trust him with the diagnostics of my car :-) Works on hybrids as well and very knowledgeable
T
, 01/14/2023

Steve and Jeff are awesome. They are honest and do quality work.
T
, 12/05/2022

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