When I turn my air conditioning on it blows cold for about a minute or two and then the air starts to turn warmer. I am having trouble pin pointing the problem. Anyone ever hear of this before or have any suggestions?
this is happening in all the air conditioning vents, both driver and passenger side. It has plenty of free on but besides that I know nothing else. What should I do first?
There should be no reason (unless you have a physical disability) that you can't get the answers to my questions. Is there?
How do you think Internet forum troubleshooting works anyway? You ask for help. Experienced people ask for data. You provide it. We guess (without being able to lay hands on the vehicle) what the problem might be, usually in order of probabilities. You take that guess and turn it into action by replacing parts and making more observations. If we ask you to get data like the voltage on a particular wire, you pull out a voltmeter and measure it.
It sounds like what you're asking us to do is unreasonable. If you already took it to a mechanic, are you saying you're going to take a list of our guesses back to the same mechanic to see if we can educate him as to the list of possible failures in an automotive AC system?
Volunteers here would love to help. But help us help you by engaging in the give-and-take process, please. :yes:
the compressor clutch engages when the a/c is turned on, and there is no debris clogging the fins of the condenser. Im not sure how to take the temperature of the receiver/drier though.
Just feel it. It should be wet from condensing moisture from the air like a cold soda can, and feel just above ice cold.
In a minute, as your interior air starts to get warm, see if the AC clutch is STILL engaged as expected and if the receiver/drier is as cold as before.
If the clutch is engaged, the compressor is spinning, and the receiver/drier starts to warm up to match the interior air temp, then freon charge would be my first guess. Get an AC professional instead of your original mechanic.
Either a failing low pressure cycling switch, mounted on the side of the receiver/drier, or low freon pressure. Your mechanic couldn't troubleshoot this? Just take it to an AC professional, since you might be wasting your money changing the low pressure switch. The function of the switch is to protect the compressor against fatally damaging itself if the freon is leaking out. A compressor cannot safely be allowed (or forced) to run while it's partially or fully discharged.
I've been lurking in the background and following several A/C threads on this topic. My climate control A/C has been running fine for a short period and then shutting down after the engine gets hot. Following the recommendation on another thread, I was tapping the low pressure switch and it flipped the compressor back on...for a while. Seems likely to be the culprit in my case, so I will order a part tomorrow and see what happens.
I hope I didn't do the "Hijack" thing by jumping in.
Thanks, :tiphat
the low pressure cycling switch has been replaced with a new one and the freeon pressure is right on point and the same exact thing is still happening. I think it might be an electrical issue, maybe a sensor or something. Any more suggestions?
A/C Clutch coil. Which, from what Ive heard, if it goes bad the whole compressor must be replaced as a unit.
Do you have the digital HVAC display? If so, does your outside temperature read correct?
If the ambient temperature sensor is bad, it will prevent the compressor from working properly. If you do not have the digital HVAC, then ignore the last sentence.
I do not have the digital hvac display and i don't think its the compressor clutch because it actually works for the first minute and then completely stops spinning. There is something thats making the compressor clutch turn off, I just can't figure out what it is.
sounds to me like the clutch coil is going bad.when it shuts off wiggle the wiring harness and see if it comes back on.if it does check the plug for a broken or loose connector.
sounds to me like the clutch coil is going bad.when it shuts off wiggle the wiring harness and see if it comes back on.if it does check the plug for a broken or loose connector.
get a gauge and check the pressure in the system while running.also check to see if the compressor is turning on and off(cycling) often.if pressure is low put more freeon in,preferably with a leak detector.be sure not to over fill the system,that will cause the compressor to cycle to protect itself form over pressurising.
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