Q: Where is the AC pressure switch located?

asked by on November 28, 2016

I know this sounds stupid but I am looking for the drier/accumulator that normally looks like a big can but I can't find it and I am just assuming that where the AC pressure switch is.

My car has 120000 miles.
My car has an automatic transmission.

The air conditioning system on your vehicle uses a pressure transducer (switch) that is mounted in the lines, near the condenser. The receiver/drier is actually incorporated into the condenser/power steering combination cooler. Please also take note that if you plan on servicing the pressure transducer, the system will need to be evacuated before removal, and then vacuumed down and recharged after service. If any of this is something that you feel you need a hand with, consult a certified mechanic, like those available at YourMechanic.com.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Door locks on and off on and speedometer dial fluctuates
I would question the diagnosis for the dealer to show you the reason to get the cable replaced and why the cable is so expensive. Have them break down the parts and labor in the quote. I show about an...
run away idle/engine speed
This can be cause by a few things. A sticking throttle cable or throttle body (https://www.yourmechanic.com/services/clean-throttle-body), due to excess carbon buildup, or expansion from heating, idle air control valve issue, it can also be caused by a faulty temperature sensor...
No power when stopping and pulling out in road
Hello. There are many things that can cause a vehicle to suddenly stall out. You mention that there was an issue with the power windows (https://www.yourmechanic.com/services/window-is-not-working-inspection) and door locks (https://www.yourmechanic.com/services/power-door-locks-are-not-working-inspection), this may be an indicator that the issue is electrical...
Rattling and screeching noise
Hello. The A/C compressor clutch and pulley should be checked and you should replace the pulley only if the compressor is not leaking. If it is, then replace the complete compressor assembly (https://www.yourmechanic.com/services/ac-compressor-replacement). If you would like to have this...
Brake pressure
Hey there. It is possible that the master cylinder (https://www.yourmechanic.com/services/brake-master-cylinder-replacement) has worn out sufficiently that the brake fluid is leaking (https://www.yourmechanic.com/services/brake-fluid-is-leaking-inspection) past the master cylinder piston and seals and into the power brake booster. This would cause a "no firm...
Do I need brake rotor and pads replacement in the rear and front?
Hi there: When it comes to buying brake pads (https://www.yourmechanic.com/article/how-to-buy-good-quality-brake-pads), to be completely honest, almost every aftermarket part made today will be fine for your application. In regards to personal preference, I'm a fan of OEM brake pads and rotors,...
Check Engine light comes on, mechanic replaced o2 sensor but light still comes on.
Hi there: If the mechanic completed the O2 sensor replacement, reset the codes and the error code was triggered again, it is possible that the catalytic converter is damaged (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-catalytic-converter) and needs to be replaced. However, it's also very common...
overheating due to coolant loss with no leaking
Hi there. Completing a compression or pressure test might help diagnose the source of your problem, but I would suspect if you're not finding a leak, that the issue is a blown head gasket. Two ways of determining if this...
Knocking noise/rattle underneath my car when I accelerate about 2000rpm-3000rpm and stops after the trans shifts
It sounds like you may possibly have a broken motor mount. As you may know, motor mounts (https://www.yourmechanic.com/services/engine-mount-replacement) are steel mounted brackets that secure the motor and transmission to the chassis of the vehicle. They have rubber internals in them...

Related articles

How Do Secondary Defoggers Work?
Your Your car is equipped with two defoggers/defrosters. The primary one is in the front, and it’s tied into your air conditioner. Turn the controls to defrost, set your temperature, and then turn on the fan and you can watch...
A Buyer’s Guide to the 2012 Ford Taurus
The The Ford Taurus received something of a revival over the past several years, and it has become one of the family sedan staples in the United States. It’s a beautiful and bold looking vehicle that offers a wealth of...
The Best Used Cars to Buy if You're Hauling a Horse Trailer
Horse Horse owners need a vehicle with towing capacity. Depending on the size of your trailer and the weight of your horse or horses, you probably won’t be able to get away with less than a 3,000-pound towing capacity, and...