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P2517 OBD-II Trouble Code: A/C Refrigerant Press Sensor B Circuit Low
P2517 code means the A/C refrigerant pressure sensor is out of the normal refrigerant level range, a faulty switch, wiring, or connectors.
How to Troubleshoot a Surge Caused by Car Air Conditioning
Car air conditioning can cause a surge in the car engine if belt have slipped, the throttle body is faulty, or the idle control valve needs replacing.
How to Replace an Air Conditioning Expansion Valve (Orifice Tube)
Car air conditioning systems need the expansion valve, or orifice tube, replaced if the AC is blowing warm air or the AC system is broken.
P2613 OBD-II Trouble Code: A/C Refrigerant Distribution Valve Control Circuit High
P2613 means a problem with the A/C refrigerant distribution valve control circuit which causes the air conditioning to not work properly.
P0539 OBD-II Trouble Code: A/C Evaporator Temperature Sensor Circuit Intermittent
P0539 means the A/C evaporator temperature sensor has a too high/low voltage signal, usually caused by a faulty evaporator temperature sensor.
How to Replace an AC Accumulator
The accumulator in the air conditioning system is faulty if there is rattling inside of it or there is a moldy smell emitting from the AC system.
How to Diagnose a Broken Car Heater
A working car heater will keep you warm and defrost your car. A failing radiator, thermostat, or heater core can cause your heating system to fail.
How to Diagnose an Inoperative Air Conditioning System Faster and Easier
Automotive technicians diagnose an inoperative air conditioning system with a digital scanner, physical inspection, and under the hood examination.
Should I Get an EPA Technician Certification?
Automotive technician jobs often require EPA technician certification for mechanics, so you can make repairs on automotive air conditioning systems.
How to Get an EPA License as an Automotive Technician
Automotive technician jobs require an EPA certification to learn how about the environment while repairing automotive air conditioning systems.
How to Replace an AC Clutch Cycling Switch
An AC clutch cycling switch meters low side AC pressure. This switch helps the AC system maintain proper cabin and evaporator temperatures.
How to Replace an Evaporator Temperature Sensor (Switch)
The air conditioning system has an evaporator temperature sensor that fails when there is no cold air or the air conditioning is inconsistent.
How Does a Car Air Conditioning System Work?
Auto air conditioners serve well on hot summer days to make driving more pleasant by cooling the air and removing excess moisture in the car.
How to Get an EPA Technician Certification
The EPA (Environmental Protection Agency) technician certification program educates people who wish to repair automotive air conditioning systems.
How to Replace an AC Pressure Switch
The AC pressure switch protects the AC system from pressure that's too high or low. Common signs of failure include a bad compressor or lack of AC.
How to Clean Evaporator Drain Tubes
The air conditioning system on a car has evaporator drain tubes than need cleaning if there is dirty air in the car or it is not blowing consistently.
How to Replace a Car Air Conditioning (AC) Compressor
If the AC compressor fails, it can cause the air conditioning system not to work. This article covers how to locate, remove, and install a compressor.
How to Replace a Heater Blower Motor Switch or Relay
The motor switch on your heater and air conditioning goes bad when the switch gets stuck in certain positions or will not budge at all.
How to Replace an Air Conditioning Belt
Replacing an AC belt can be challenging, as you have to locate specific parts in the car in order to do so, and use proper tools to complete the task.
How to Replace a Car Air Conditioning (AC) Low Pressure Hose
Car air conditioning (AC) low pressure hoses carry refrigerant back into the compressor to keep providing cold air in a closed loop system.

Related questions

Question
Allen, my mother in law who is 81yrs old. took our 2005' Ford Expedition to the local Ford dealership because her a/c was no longe
Replacing all parts is hypothetical because such an extreme and high cost approach is never required to repair any a/c system, excepting a rare circumstance where you might be restoring a vintage or show car to brand new condition. To...
Question
I have a 2008 F150 with 53,000 miles on it. A couple of days ago the air stopped blowing cold. Could it be coolant or fuses? Ho
Hello, thank you for writing in. The lack of cold air coming out can most often be related to low refrigerant levels, a failed compressor, or a failed condenser. Each component will need to be tested, as will the level...
Question
We have taken our Honda Pilot (2008) to the dealer 3 times for the air conditioning.
It may seem odd the costs are the same but the first visit was to fill up the system that leaked out all the freon. The second visit wat to see if the leak could be located and it was...
Question
What parts would I need to replace in the AC system of my 2004 Chevrolet Blazer
Hello. If there is just a leak in a hose then only the hose needs to be replaced then the system needs to be evacuated and recharged. If the compressor is bad then it needs to be replace along with...
Question
Recharging ac system, green liquid came from can and entered the low port.
Depending on the contents of your refrigerant in the can that you bought you are seeing added oil , sealant and leak detector dye. None of the items will cause a problem in your system and will help lubricate your...
Question
Mechanic changed A/C condensor and added refrigerant. Still dont work. Now the problem is the compressor. Wrong initial diagnosis?
Most of the time when the condenser gets a refrigerant leak and all the refrigerant and a lot of system oil leaks out. When this happens the compressor may be starved of oil to lubricate it internally. Now after the...
Question
2002 Chevy cavalier
The a/c compressor is most likely seized and when you turn on the a/c the compressor stops the serpentine belt from turning causing the loss of charging and burning smoke from belt. You will need to have compressor replaced and...
Question
08 Kia spectra do I need just the a/c compressor or the kit?
I am not sure what you mean by a kit. I do however recommend replacing the a/c compressor with a new receiver drier and flushing out the entire system and adding fresh oil and refrigerant for the a/c.
Question
My ac works off and on,what can be the problem?
Hello, thank you for writing in. Modern vehicles do not use freon on the air conditioning systems. They use a new type of refrigerant that is far less harmful to humans and the environment. If you used actual freon instead...
Question
when I turn my ac on my cars idle drop and stalls out and the ac is hot
Hello, thank you for writing in. Although the pulley is still spinning, the compressor has likely failed. If it is not properly regulating pressure in the system, one of the first signs is a warm air conditioner. Considering yours is...
Question
Would performing a heater core bypass give my AC colder air in my 2001 Jeep Wrangler
Hello. Unfortunately this will not help. If the blend doors under the dash are working fine then the heater core should be completely blocked out when the a/c is on. If the system is functioning properly and the system pressures...
Question
ac freon, still not cool, serviced, stil now cool, then looked at and given price high quote to replace leaking seal. Acceptable?
If an air conditioning system is empty, or not performing well, if it passes a visual inspection, the first step to diagnosing it is to do a vacuum and recharge. This process will involve a labor charge of 1 to...
Question
My air conditioner is not working on my 2006 Honda Odyssey, do you think it is the clutch
Hello. It is possible that the clutch or the compressor is bad, but most of the time on this vehicle the primary cause of an air conditioning failure when the system is full is a bad clutch relay. The relay...
Question
when i cut on my ac in my 2012 malibu it starts to click and when i drive it stops. but when i am in park or on brake at a light i
Hello, thank you for writing in. The first thing to determine is what exactly is stopping. Does the vehicle stop blowing cold air, or does it stop blowing all air regardless of temperature? If it stops blowing cold air intermittently,...
Question
Do i need to replace the receiver drier and/or the expansion valve when replacing the condenser assembly?
Replacing the system drier is absolutely essential. If the system has been open to the atmosphere (due to the leak in the condenser), the desiccant in the drier has been fully saturated with moisture. As far as the expansion valve,...
Question
AC problem
You need to check to make sure the condenser is not blocked in the front and that the fans are coming on when the a/c is on. The system may work okay in cooler weather if fan is not working...
Question
My air doesn't work all the time
Hello, thank you for writing in. There are a few more bits of information that we need to try and help guide you. If by not having air, you mean that the air stops blowing, then you have an issue...
Question
Would my 2009 Ford Taurus X need two cans of refrigerant to fully charge my AC?
Hello, thank you for writing in. Most vehicles that need recharging take less than one can to fill their system. If you are having trouble pressurizing, you may have a leak. Not all cans are made equal, and you want...
Question
Air conditioning blowing mildly cold air on the coldest setting, turned off/on again, now blowing cold air, should it be checked?
If you are getting ready for a long trip and suspect the cooling fan may be not coming on for the radiator and a/c then you should have the a/c and cooling system performanced checked before trip. Nothing worse than...
Question
loud buzzing on driver side while in motion. no dash lights on?
Hello, thank you for writing in. There are several moving parts that can cause a vibration in regards to the air conditioning system. You or a technician will have to go through the components one by one until the vibration...

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