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 Pete B Service 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.
Partners
What our clients are saying about us
We have established longterm and stable partnerships with various clients thanks to our excellence in solving their automotive needs!
I was looking around for a classic Volkswagen specialist to restore my original 1968 Meyers Dune Buggy for quite a few months. I checked out places as far away as upstate New York, Connecticut and Rhode Island . I finally came across Pete B service after someone I met told me there was a great group of classic VW specialists at Pete B in Middle island . After going down to there shop and meeting Dirk and his crew I knew they were the right guys to work on my classic VW They did a fantastic job restoring my dune buggy. When I purchased my car it was sitting in a warehouse for over 35 years and needed everything. Dirk, Rich and Tom replaced parts when needed and rebuild the steering, brake system, fuel system , complete wiring harness and installed an engine I purchased for the car. It now runs and looking amazing!! Their attention to detail is top notch. The work was completed on schedule and to the original quoted price. As a bonus , Dirk the shop owner raced sand rails and is involved in off road racing. So he knows how to assemble your ride for on and off road use I highly recommend Pete B Service . If you have a classic VW I would not go anywhere else. 5 stars
I have a 1974 VW Karmann Ghia that Dirk has done work on. I would Not trust it to Anyone Else! He is a perfectionist with the work he performed and the care he takes with my VW classic Car. Peter B of Middle Island is the Best!