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Best Auto Repair, Garland

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WE SERVICE VEHICLES THAT REQUIRE R1234YF REFRIGERANT!

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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 Murdock & Son 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

Awesome experience.... Rebuilt transmission and replaced the rear bearings in 48 hours for half the prices of all other quote.s
B

I have been going to this auto shop for more than a decade. You can trust them. They will not steer you wrong, and they will never lie to you.
M

Great people. Very helpful. Knowledgeable.
M

This family owned business was recommend to me by a friend. I was very pleased with their knowledge and willingness to trouble shoot my car issues. They were honest and prices were good. They will be my GO To for Car Repair Oh....and they had a cat in the office.....can't go wrong there !!!
F

I have taken my car to Murdock and Sons several times and will not take it anywhere else. The last time I was there, I waited with three other older ladies, like me and we all agreed these are the only people we feel we can trust with our older cars. They do a great job at a reasonable price.
B

Very happy with my three visits here. They were honest, had fair pricing and completed the repairs when promised. Came recommended to me by someone I trust in the auto sales business.
W

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