Working Hours
  • Mon 7:00AM - 5:00PM
    Tue 7:00AM - 5:00PM
  • Wed 7:00AM - 5:00PM
    Thu 7:00AM - 5:00PM
  • Fri 7:00AM - 5:00PM
    Sat Closed
  • Sun Closed
    After hours by Appointment Only!
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920-668-6232 | N188 County Road LL, Cedar Grove, 53013

Replace Your Car's AC Thermal Expansion Valve or Orifice Tube

M & R Service Center INC

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 M & R Service Center INC, 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 Are Saying

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Best place to go to get anything done. Wonderful people working here. The only place I will go.

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Spectacular service and friendly staff! We had been taking one of our cars in to other places over and over and no one could figure out what was wrong. These guys figured it out in minutes and they are very reasonable! I highly recommend!!!!

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Great family owned and operated service center. Couldn't be happier!

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Jeff , Troy and the entire staff are hands down the best! Thank you all for the great service!

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I've been going here since M & R stood for Marv and Roger, back in the 1950's. Jeff upholds the tradition of top notch service.

  • ACDelco
  • AutoPlus Professional Service Center
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  • Car Care Aware
  • Call Us For Service: 920-668-6232