A/C is not working
- Thread starter thekidwithquestions
- Start date
What year is what? the Jeep? Yea I'm doing my best to learn it, its pretty good so far in opinion.
Yes the jeep- I was asking you to the difference in vacuum line sizes on the mode selector- that is an 05/06 deal I think.
Let us know everything works out OK-
I didn’t realize you were 16 and good on you for getting a vehicle and taking care of it buddy.
hey Andy, clean your windshield and look at the bottom of his post just above where it says report ! do you see it says "CHARLOTTE THE '99 SAHARA" that could be a hint 
just kidding buddy 
just kidding buddy
will do
Thanks!
When I was 16 I pulled a VW beetle out of the weeds and get it going and kept going for a couple of years -
It kept me out of trouble and it gave me something to work toward and it taught me a lot-
My Jeep life started after that bug-
Today I said I still work with my hands, have house, a 401 k, an f250 platinum, 2 Rubicons, another project TJ, 2 Ktm dirt bikes, 5 enclosed trailers, 2 open trailers, 4 other vehicles, lots of tools , blah blah blah- And I have made some mistakes, just outworked them. And have been blessed. No question.
Here is my point- you are already doing what built my life- - making sure you can get around, working, paying your way and getting it done-
Those habits can get you everything in life you want - go for it.
hey Andy, clean your windshield and look at the bottom of his post just above where it says report ! do you see it says "CHARLOTTE THE '99 SAHARA" that could be a hint
Hey- people define 99 Sahara a lot of ways - Maybe he was stationed there in the military or went camel shopping there. I try to be very discerning......
Hey- people define 99 Sahara a lot of ways - Maybe he was stationed there in the military or went camel shopping there. I try to be very discerning......
you know I'm just messing with you brother ! If we cant laugh we mind as well just give up !
So true-
My mother has taken a turn for the better and I feel like a weight is lifted off- I really appreciate all you guys checking in.
Andy
Beyond visually inspecting wires in question, you can check the resistance of your wires to see if damage is inhibiting current flow. Voltage might be there but you need enough current to provide adequate power to the load.
Also to @AndyG ’s point about low refrigerant, if you have a low pressure switch then it will prevent your AC compressor from engaging when the pressure is too low (so your compressor doesn't kill itself by trying to reach pressure that cannot be achieved).
I’d put refrigerant in the system if there are no leaks and there is no atmospheric contamination in the system (vacuum has been properly pulled and maintained).
Didn’t know about your mom @AndyG glad she’s doing better!
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All A/C systems have a high/low switch to shut down the system if pressure is too high or low.
You could Just replace the entire panel. I just did this last week in my 99, and the local parts store had one on hand.
IOwnCalculus
TJ Enthusiast
No, they have a high/low switch to shut off the compressor. This has nothing to do with the blower motor.
Visually inspecting the electrical component is only the first step in the troubleshooting process...
You need to test for continuity between the internal contacts to determine their condition.... which is why I recommended the troubleshooting steps that I posted above in #31..
Touching on what I stated above, continuity is also a good start but your resistance number is equally important when there is a partial line breakage. What I mean is, don’t simply assume the continuity “beep” tells you the entire picture because continuity is binary.
IOwnCalculus
TJ Enthusiast
Completely agreed. I had that bite me in the ass when fixing the air conditioning on my old WJ - my DMM showed continuity from the PCM to the AC coil connection, and with no load it would show 12V to ground. But if you used a test light or actual load, it'd act like an open circuit. Root cause was a loose connection at an intermediate connector, but I didn't figure that out until I'd already wasted time and money replacing the coil and compressor.
Absolutely. Folks confuse their AC system and their heating system with their “air movement” (blower) system.
Settings for your fan are blower related and should not be confused with your AC system. Your AC system is either on or off (not partially on or partially off.
Your air supply from the blower simply blows air through the evaporator (for AC) or heater core (for heat).
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