Just use a multimeter to test BOTH connector AND switch to see if you have continuity. If you DO, then the switch and wiring are NOT your issue. You can do this on EVERY sensor and switch.
When installing a new AC pressure switch (low or high) you should always replace the O-Ring. Lube the O- Ring with clean fresh matching AC refrigerant oil. Jeep Liberty AC oil is PAG. You should have installed AC manifold gauges and checked the pressures. Automotive Industry Best Practices is to test the actual operations of the switch itself under running conditions (voltage, ground, signal, etc at each pin of connector and each pin of switch)
Why bother with checking each pin of a connection you can't replace? Even if just one pin was causing the issue wouldn't you just have to replace the fuse/switch or whatever anyway?
I'm going to try, hope this works on my 2011 Jeep compass. It's a Lemon car, hate to put more money into a car that is about to be bought back from dealership. Wish me luck and I will update.
Well aren’t you a miracle worker!! We jumpered it and it worked but there was no continuity across the switch. So…need a new switch or a recharge. Thanks for the video but would have liked to have seen the plug during removal and some commentary on how it came off.
I am in need of help. I have a 2006 jeep grand cherokee laredo. Drove the jeep to town and the AC worked great. Parked it for 30 minutes and when I started it the AC clutch would not engage. Checked all the fuses and all were good, checked all out under the hood and under the dash above my foot pedal. Switched out the AC clutch relay with the horn relay (same number relay) and nothing. I changed the low pressure switch and did not fix the problem. I changed the compressor and could NOT get the AC clutch to activate when putting in freon. I changed the expansion valve and nothing. I changed the LOW PRESSURE switch a SECOND time thinking the first one was bad. NOTHING! My controls inside the jeep (blower, temp) were replaced last year, they were purchased from the dealer so I doubt they are bad. I even changed the valve cores on the low side (where u put in freon) and the valve core where the low pressure switch is. Only other thing I can conclude is the TIPM box, but I am open to suggestions. On two separate occasions I blew the fuse to the AC Clutch, but I cannot replicate that again so I have no clue what caused that. As of now the fuse is staying in tact. I am OPEN TO SUGGESTION!!!!!
My 2002 Jeep Liberty is having a weird A/C issue. Its cold and works when I'm parked. Or at a stop. But when I accelerate and drive the A/C is hot? And no cold air I don't understand why
Thats great work! I want to find out if thats the same problem for my 2007 grand cherokee. Do you know where that switch is located? Please and thank you!
Thanks man if it leaked out would that switch go bad mine turns on jumping that connector wondering if It needs freon because if it's low that switch actually turns it off when it's empty
Could you PLEASE do a A/C repair for a 2011 Jeep Compass. Took it to NTB for a A/C check and theirs a relay somewhere not telling the A/C to turn on (NTB doesn't do those kinds of repairs ☹)...I NEED MY A/C. Thx
My fan won't turn on ....2008 Jeep lib, could this switch keep this from happening? The compressor is working and all . I just put a new fan in by the way. The relay and fuse is good no power at fan plug
I need help, while I was trying to replace the switch, I was attempting to take off the old switch where you said it was plastic but it was super difficult to take off. Any tips on how to take it off?
bypass test gets compressor going and blowing cold air. Replaced cycling switch with auto zone switch and compressor doesn't go on. ??? Is the switch the only component that could fail? Or is there something else that's bad?
Like working on most electrical things on automobiles the hardest part is figuring out how the hell you get these Chinese puzzle electrical connections apart. Sadly in this video the camera points away at the exact moment showing you how to unconnect the wires.
When using the jump should the AC start blowing cold air? I did the jumper, the clutch started like yours, but no cold air. Does the bad sensor prevent cold air process?
Thanks for the tip. I did this and the clutch spins for a few seconds and then shuts off. Spins for a few seconds and stops again. I checked and cleaned all the connections and it still does this. Any suggestions?
This is called "short cycling". This usually results from a low refrigerant charge caused by a refrigerant leak. Or, if you tried recharging your system, & it was already fully charged, it could now be over-charged, & is short-cycling via the HPCO (High Pressure Cut-Out) switch.
i tried that and it blew my ac big 20 amp fuse it rived the motor like it kicked in but it didnt kick in and i held it for a sec or so it blew the fuse...help...
Sorry ask a silly question...but I confused by when you say "jump release" or jumper the Green connector... what exactly are you doing.?? Thanks in advance :-)
I'm not a mechanic by any stretch of the imagination, but here is a stupid question - should I be concerned about being shocked putting a paper clip in that part?
Hello . I have a Jeep 2004 Liberty , and when I turn the a/c on, it only work on level 4, . 1,2,3 are not working. Started with level 1, 2 at the same time and like a week level 3 , now only 4 is working. Does anybody knows what it could be the issue so I can fix it ? Thanks in advance !
Not to diminish the value of this video, I just feel some additional description of operation might be needed here. The Clutch Cycling Switch not only keeps the evaporator from turning into a block of ice, & blocking airflow, it also serves as a compressor safety device by preventing compressor operation due to a loss of refrigerant. Remember, the refrigerant circulates the oil in the system to keep a constant supply of oil to the compressor while in operation. If the refrigerant level is too low to accomplish this, this switch will disable compressor operation. So, if you bypass the switch, & you DON'T have good cold air, then replacing the switch probably won't help. You'll need to verify system charge level, & if low or empty, fix the leak & recharge. If a leak cannot be found, add some UV Flouro-Dye & recharge. If the system appears to be fully charged, & the compressor clutch is not engaging, find out why. Yes, it could be the Clutch Cycling Switch (usual suspect) , but it also could be the a/c relay*, or the High Pressure Cut-Out Switch*, or the "Triple-Switch"* , or an open circuit (i.e. broken wire), or a bad field coil*, or the ECM/PCM, or the A/C Control-Head, or.... *= if equipped (depends on make/model)
Make sure you wiggle the paper clip in and around. Mine didn't start spinning at first either till one wiggle did it. Then I knew I had to work the clip.
Thank you for this video man I did what you showed on my 2002 Jeep Liberty and that’s exactly what it was. Thanks again you saved me some money
Awesome!!
great tip for diagnosis and fixing. saved a lot of service cost for a low cost part replacement.
Thank you Matt I was looking at the pressure switch in the line on top of the compressor.
Just use a multimeter to test BOTH connector AND switch to see if you have continuity. If you DO, then the switch and wiring are NOT your issue. You can do this on EVERY sensor and switch.
Feels so damn good when it's a simple fix lol.
It's the best!
If all ac problems could be that simple..lol. Nice work.
If only!
I did this test on my 06 Liberty with engine running. The compressor did not engage. What’s the next step?
When installing a new AC pressure switch (low or high) you should always replace the O-Ring. Lube the O- Ring with clean fresh matching AC refrigerant oil. Jeep Liberty AC oil is PAG. You should have installed AC manifold gauges and checked the pressures. Automotive Industry Best Practices is to test the actual operations of the switch itself under running conditions (voltage, ground, signal, etc at each pin of connector and each pin of switch)
Why bother with checking each pin of a connection you can't replace? Even if just one pin was causing the issue wouldn't you just have to replace the fuse/switch or whatever anyway?
Dude I really can not thank you enough for this!
Much appreciated! 💚
Hope this works. Update it did work. Update it's Sunday night and the parts stores are closed. Update new part installed AC works.
ok, you are batman, ac works for a few bucks and my wife is thrilled. thank you
Nice bypass test! Paper clip saves the day haha
Thanks a lot! solved my problem here in Sunrock-Brazil!!!!
This video is going to save many folks lots of money.
There are stupid mechanics that will replace the whole AC system instead of that $20 switch.
I'm going to try, hope this works on my 2011 Jeep compass. It's a Lemon car, hate to put more money into a car that is about to be bought back from dealership. Wish me luck and I will update.
I think this will help me thank you
What direction would you steer those who don't get lucky with this fix? Any other simple tests for other components
U nailed it Matt, thanks
Wow very helpful thanks 🙏
Thank you so much for this. Worked like an absolute charm!!!
Awesome!~
@@MattsMotorz ..i just had a who,e new compressor ..clutch..bearing..i had AC for 1 day..now nothing...could this be a new problem..it cost me 700.00
Nice video but would of loved to see how u jumped the connectiors
Did you use a paper clip as the jumper?
Well aren’t you a miracle worker!! We jumpered it and it worked but there was no continuity across the switch. So…need a new switch or a recharge.
Thanks for the video but would have liked to have seen the plug during removal and some commentary on how it came off.
Yup. Jump worked ! Thanks. I hate worki
G in ac
Matt, you are a life saver. That is just what was wrong with my 07 Liberty. Thanks man
Great to hear!!!
I am in need of help.
I have a 2006 jeep grand cherokee laredo. Drove the jeep to town and the AC worked great. Parked it for 30 minutes and when I started it the AC clutch would not engage.
Checked all the fuses and all were good, checked all out under the hood and under the dash above my foot pedal.
Switched out the AC clutch relay with the horn relay (same number relay) and nothing.
I changed the low pressure switch and did not fix the problem.
I changed the compressor and could NOT get the AC clutch to activate when putting in freon.
I changed the expansion valve and nothing.
I changed the LOW PRESSURE switch a SECOND time thinking the first one was bad. NOTHING!
My controls inside the jeep (blower, temp) were replaced last year, they were purchased from the dealer so I doubt they are bad.
I even changed the valve cores on the low side (where u put in freon) and the valve core where the low pressure switch is.
Only other thing I can conclude is the TIPM box, but I am open to suggestions.
On two separate occasions I blew the fuse to the AC Clutch, but I cannot replicate that again so I have no clue what caused that. As of now the fuse is staying in tact.
I am OPEN TO SUGGESTION!!!!!
Thank you. Have you any idea when the blower motor works only on first, second, third but not on fourth?
Damn. That was easy!
My 2002 Jeep Liberty is having a weird A/C issue. Its cold and works when I'm parked. Or at a stop. But when I accelerate and drive the A/C is hot? And no cold air I don't understand why
Matt, that was awesome! I don't agree with your gang affiliation and thug lifestyle, but you've got skills, son!
LOL! Thanks for watching
Where did u find tht sensor from I need for my 07 Liberty
Ya my 09 is blowing air but it's not much and it's loud and won't switch where it blows out
Thats great work! I want to find out if thats the same problem for my 2007 grand cherokee. Do you know where that switch is located? Please and thank you!
Thaks man good video save $$$$
Thanks man if it leaked out would that switch go bad mine turns on jumping that connector wondering if It needs freon because if it's low that switch actually turns it off when it's empty
Could you PLEASE do a A/C repair for a 2011 Jeep Compass. Took it to NTB for a A/C check and theirs a relay somewhere not telling the A/C to turn on (NTB doesn't do those kinds of repairs ☹)...I NEED MY A/C. Thx
My fan won't turn on ....2008 Jeep lib, could this switch keep this from happening? The compressor is working and all . I just put a new fan in by the way. The relay and fuse is good no power at fan plug
THANK YOU.
Can you just use the jump out as a semi-permanent fix?
thanks, where can I get that diagram? from liberty 2003
I need help, while I was trying to replace the switch, I was attempting to take off the old switch where you said it was plastic but it was super difficult to take off. Any tips on how to take it off?
Try cutting the end off of a wrench and using that to get back in there to wrench it off.
Will that be the same steps on a 08 liberty?
bypass test gets compressor going and blowing cold air. Replaced cycling switch with auto zone switch and compressor doesn't go on. ??? Is the switch the only component that could fail? Or is there something else that's bad?
Check refrigerant level. If it is too low, the compressor wont turn on. (Use manifold gauges, you can rent these from autozone)
Like working on most electrical things on automobiles the hardest part is figuring out how the hell you get these Chinese puzzle electrical connections apart. Sadly in this video the camera points away at the exact moment showing you how to unconnect the wires.
Clippy, is there anything he can't do?
The second sensor what is his name
When using the jump should the AC start blowing cold air? I did the jumper, the clutch started like yours, but no cold air. Does the bad sensor prevent cold air process?
Dale Baranoski it’s because the sensor was doing its job , if there is no pressure the switch turns off the compressor to keep from damaging it
Thanks for the tip. I did this and the clutch spins for a few seconds and then shuts off. Spins for a few seconds and stops again. I checked and cleaned all the connections and it still does this. Any suggestions?
This is called "short cycling". This usually results from a low refrigerant charge caused by a refrigerant leak. Or, if you tried recharging your system, & it was already fully charged, it could now be over-charged, & is short-cycling via the HPCO (High Pressure Cut-Out) switch.
i tried that and it blew my ac big 20 amp fuse it rived the motor like it kicked in but it didnt kick in and i held it for a sec or so it blew the fuse...help...
PS I noticed your Jeep had a transmission fluid dip stick. I have a 2007 and do you believe Jeep didn't provide a dip stick for this year!!?
@Sue Ellen McGoey or a junk yard...
I have an 06’ liberty with AC issues, the fan works and it is blowing air but no AC would replacing this part be the solution?
No , its a $3000 job you need to get the whole system replaced
Mine spins then it stops but the ac doesn't come on at all
Sorry ask a silly question...but I confused by when you say "jump release" or jumper the Green connector...
what exactly are you doing.?? Thanks in advance :-)
A jumper is just a wire that connects to electrical contacts.
Does paper clip size matter lol, it wouldn't work for me
I'm not a mechanic by any stretch of the imagination, but here is a stupid question - should I be concerned about being shocked putting a paper clip in that part?
Hello . I have a Jeep 2004 Liberty , and when I turn the a/c on, it only work on level 4, .
1,2,3 are not working. Started with level 1, 2 at the same time and like a week level 3 , now only 4 is working. Does anybody knows what it could be the issue so I can fix it ?
Thanks in advance !
Might be the actuator / blend doors
Not to diminish the value of this video, I just feel some additional description of operation might be needed here.
The Clutch Cycling Switch not only keeps the evaporator from turning into a block of ice, & blocking airflow, it also serves as a compressor safety device by preventing compressor operation due to a loss of refrigerant. Remember, the refrigerant circulates the oil in the system to keep a constant supply of oil to the compressor while in operation. If the refrigerant level is too low to accomplish this, this switch will disable compressor operation. So, if you bypass the switch, & you DON'T have good cold air, then replacing the switch probably won't help. You'll need to verify system charge level, & if low or empty, fix the leak & recharge. If a leak cannot be found, add some UV Flouro-Dye & recharge. If the system appears to be fully charged, & the compressor clutch is not engaging, find out why.
Yes, it could be the Clutch Cycling Switch (usual suspect) , but it also could be the a/c relay*, or the High Pressure Cut-Out Switch*, or the "Triple-Switch"* , or an open circuit (i.e. broken wire), or a bad field coil*, or the ECM/PCM, or the A/C Control-Head, or....
*= if equipped (depends on make/model)
Can you please let me know part number or proper name for it? Thanks
Murray 20922 from O'Riley Auto parts.
What sensor is that?
I think I said it in the video didn't I? It is the clutch cycling switch, cycling switch or low pressure switch.
Awesome.
What did you use to test connector? Paper clip?
nothing happened when i bypassed it
Make sure you wiggle the paper clip in and around. Mine didn't start spinning at first either till one wiggle did it. Then I knew I had to work the clip.
What is the replacement part number?
Murray 20922