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 Dennis Road 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.
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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!
Where do I start ADAM ADAM ADAM remember that name his customer service was outstanding, spectacular, and above and beyond, when I first pulled up he had a Genuine spirit, His presence made me feel very comfortable, I didn’t get this feeling “this guys just here to do a job and get paid” but that he has a heart to care about his clients, He listened, took notes, and understood what I was requesting fully. I told him how I went to another mechanic shop and how I was treated there and how much they were trying to charge me to fix an issue he emphasized with me and understood that not everyone have money to blow especially fixing unnecessary things that doesn’t necessarily pertain to the issue at hand I was being upsold at another mechanic shop and over charged but ADAM rest assured he doesn’t do that there he knows when you treat a customer right they’ll continue to be loyal. I was expecting to have it in the shop for a while and having to Uber to work and back it gets expensive when you’re 30 mins away from work. He was able to fix my Auto Stop Start and Check Engine light for dang near HALF the price of another mechanic shop quoted me and didn’t upsell me and fixed it in 2 DAYS! He was so nice I offered a tip 3 times and he denied it real genuine he also checked in on me to make sure things were straight. I was extremely happy to know it’s fixed and that I’m saving HALF the price I was quoted I found my Guy and Mechanic shop at Dennis Auto Motive HIGHLY RECOMMEND
I’ve trusted Dennis Road Automotive for many years, though it’s been a while since my last visit, mainly because they’re not open on weekends. I’ve always appreciated their straightforward service, and I still miss Riley, who brought a great personal touch to the experience. On my most recent visit, I was charged $374 for a new battery for a Lexus ES350. I’m not sure how that compares in today’s economy, but it gave me the same feeling you get when dining out these days, quality isn’t necessarily better, yet the prices seem to jump significantly. The work was completed, and the team was professional, but the cost left me wondering if the value aligns with what it used to be. I still want to support businesses that have served the community for so long, and I hope they continue to provide honest, dependable service at a price that feels fair in the current market.