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air conditioning

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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
AC ISSUES
Hi...we can definitely help you. Basically, to get an estimate of the cost to restore the A/C system, that is get it running, a mechanic needs to test the system up close (perform a system diagnostic) and figure out the...
Question
replacement of ac drier cap
The cap itself may be available from the dealer. If the purpose of the seal cap is simply to keep dust out, so long as the selected fastener has the identical thread (pitch and diameter) you can use a metal...
Question
A/C and heat are not working properly. Car blows heat in summer and cool air in winter.
Common causes of no cabin heat include malfunctioning blend door(s) (part of the in-dash ventilation network), a faulty or stuck heater control valve, a plugged heater core, stuck open engine cooling thermostat, collapsed hoses, and low coolant level. The cost...
Question
trying to refill ac but the compressor will not kick in is there away to bypass the compressor
If your car is only 4-5 years old and the system is so low on charge that the compressor won't turn on, that means you have a significant leak. It might be a waste of time to re-charge the system...
Question
Hi Khoa.
There are innumerable things that can go wrong with the A/C system and so the best thing to do is request an air conditioning system inspection and the responding certified mechanic will get this repaired for you. The possibilities that...
Question
2000 Jeep Gran Cherokee 4.0. If low and high AC pressure switches are grounding out, and clutch won't engage, does that mean compr
Hello Jim, thank you for writing in. To determine what the issue is, you need to start by checking the clutch coil for full battery power (12 volts ideally). If it is, then you know clutch should engage when prompted,...
Question
how much willit cost to fix air conditioner for 325 i 2006?
The cost depends solely on what is wrong. If the fuse supplying the compressor is blown, and such is not due to a faulty circuit, you are looking at a dollar for a fuse, plus the cost of a service...
Question
Car idles rough with AC on - 2008 dodge avenger
Hello, thank you for writing in. There can be multiple problems with the vehicle causing your issues. First, we need to take a look at the drive belt which sends power to the AC system from the engine. When the...
Question
I have a 2003 honda accord. How much would it cost to install?
Hello Cynthia, thank you for writing in. The price to replace your daughter's condenser will vary by make and model, and you can find more information about our pricing from our service department. Keep in mind, the AC condenser and...
Question
Pete, I have a 2012 Toyota Camry LE and I hit a deer and Service King fixed the repair. They had to put more coolant in my car's
Unfortunately, the flow sensor is not serviceable on a do it yourself basis because the refrigerant has to be evacuated. Don't even think about trying it if you have never worked on a/c because you run a substantial risk of...
Question
a/c making boiling noise
Hello, thank you for writing in. The noises you are hearing may in fact be bubbles in the system. If the refrigerant is low, there may be air caught in the system instead. As the air conditioner processes and vaporizes...
Question
AC not working for 2015 Honda accord sport
Hello, thank you for writing in. Considering the age of the vehicle, it may be under warranty. It is absolutely worth looking into. Only the dealer will be able to answer that question for you depending on your specific agreement...
Question
My car ac a year ago stopped working on settings 123 only works on 4 I did the research so I do know it is the blower motor an ha
In your application, there is a replaceable blower motor resistor block. The resistor block permits multi-speed operation of the fan. If some fan speed settings work, but not others, the first thing to do is test the resistor block with...
Question
Air conditioning
There are innumerable things that can go wrong with the A/C system and so the best thing to do is request an air conditioning system inspection. The responding certified mechanic will come to your location, pinpoint the fault and get...
Question
Do the compressor supposed to always be turning if it is not turned on
If the A/C switch in the passenger compartment is turned off, any air delivered by the in-dash blower should simply be the same temperature as the passenger compartment, that is not chilled. If you have the A/C switch off and...
Question
My ac clutch is not engaging, but there is no relay in the fuse box for the ac compressor
If a mechanic told you only that the compressor is not "engaging" that is essentially a useless diagnostic because it is too cryptic and too vague. The compressor in the system will only operate if the compressor clutch is engaged....
Question
My 2008 Honda Accord blows hot air and the ac make Lois humming noise
To determine the exact fault, the system will have to be tested. You can obtain that service by requesting an a/c system diagnostic. If the a/c switch was set to "on" and you attached a can of refrigerant with an...
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...

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