Golf IV / Jetta IV :: AC Compressor Clutch Turn On But Does Not Kick Off
May 29, 2015
I have an issue with my 2003 golf 2.0 ac I've done everything that I cloud thing of to check but I still have this issue so here it is. The air coming out of the vents is warm, compressor Clush turn on but doesn't kick off. I hook up ac gauges and it reads 70 on low side and 155 on high side with an ambient temperature of 80. The system has freon, I check fans and they are on when compressor kicks in all relays and fuses are fine.
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AC compressor won't kick on at all. I know the system doesn't have much refrigerant (just replaced the line that runs from the expansion valve to the bottom of the drier, the drier itself, and the condenser)..
Evacuated the entire system with a pump. Tried putting refrigerant in and the pressure on the gauge goes up immediately into the yellow/red...jumped the connector on the high pressure switch and the fans came on, shouldn't the compressor kick on too?
Checked the 14 pin connector on the fcm for 12V...PIN number 8 is barely seeing any power which leads to no power getting to the compressor...
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2002.5 VW Jetta GLI VR6 24V 6-Speed. Barely accepts a small can of Freon from full empty, and pressure goes to over 100 psi in the red, compressor does not kick in, idle fluctuates with A/C button on, small fan kicks on fine, some air pump turns on and off with the erratic idle and sounds like shot of compressed air. When I turn the A/C button off, idle comes back to normal and that psss sound is gone. I already changed compressors and that made no difference. Video below.....
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I have a 2003 2.8 GLI and my compressor clutch will not engaged i provided the clutch with a direct power and ground from the battery and it engaged. i also went to the junk yard and got a couple of Fan Control Module ($4 each) and it still does not engaged.
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Golf 2.0 ... Finding the location of the AC Clutch/Compressor relay location. On the TDI its behind the the dash and I looked on mine and it doesn't seem to be the same. I've seen a thread where some said it was under the battery? Where it is and what number will be stamped on it. Another thread said it should be behind the dash and number 385 or 358, I looked and I don't have those numbers back there.
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99 Jetta, installed a new AC compressor a month ago, has been working great, not clutch will engage for a few moments, then turn off for a minute, then engage again. Seems, like there is Freon in there by the gauge on the low side.
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I found out that the bearing in the compressor clutch is the one making my car sound like crap... but I have been looking for it and everywhere I call they only sell the whole compressor that is expensive. I was thinking on get the clutch out and lube the bearing up or something but I don't know if I have to discharge the freon for doing it ... How to remove the AC clutch ?? Its an mk4 btw....
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I got a 2003 GTI 1.8t and the AC air is blowing warm. With the car on, AC on and fans full blast both rad fans turn on but compressor clutch does not engage. Took it to a shop and the mechanic said the system was full of refrigerant but that the compressor was not getting the proper signal and there was an electrical problem.
I check the power at the compressor and it is reading about 7 volts, which is low correct? That should be getting 12-13 volts correct? I also check the pressure switch over by the passenger side and it was getting 13v. What to check next to start ruling out causes? Any quick way to determine whether this is electrical or a compressor issue? I am limited in my abilities as far as electrical work goes.
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The A/C does not blow cold. The Compressor clutch does kick on and stay on The passenger side fan kicks on only (I think the driver side is toast but i need to test it to confirm) The system has 45psi on the low side
I did not check the high side as I don't have a gauge for it but will get one if I need to test that. So my thoughts are that my expansion valve is toast which is what expands the hot liquid and turns it to cool liquid so the A/C gets cold. I think this because it seems all of the other components work.
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Got a weird issue that I've never encountered before. I tried searching but you can't search for just "A/C", so the search was pretty generic and I couldn't find anything similar to my issue.
Hot or cold, doesn't matter. When I turn the A/C on the clutch try's to engage and slowly starts to spin with the pulley until until it finally engages then the a/c will blow out cold air just fine. Also noticed a burning smell coming from it.
01 Jetta 2.0
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2002 Golf IV 1.9 TDI 4motion 130 hp.
Sometimes (not always) when cornering to the left in a curve the ESP activates even on dry asphalt. A bit annoying.
What I have checked so far; tire pressure, no fault codes on abs sensors, wheel alignment just done (but didn't work). Abs, esp and awd works as normal...
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Says A/C Compressor Clutch Circuit open. A/C blows hot air....go to VENT and the EATC controls the temp fine (ambient air only). It's on a '97 Lincoln Mark VIII if it makes any difference. Pulled code # 1530 ...
Clutch does not engage but the compressor does turn. Also the EATC will NOT go into the test mode. Push OFF and Floor at same time, then AUTO within two seconds. Nothing. Is this a clutch gap problem? New clutch was installed about a year ago.
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2000 Explorer Sport with 4.0L SOHC engine. When I turn on the A/C the clutch on the compressor cycles off and on every 10-15 seconds. The A/C cools and the gas charge is checked as OK. Is this normal?
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My truck has been blowing HOT when I put the A/C on. I suspected the blend door actuator and changed it out. I later discovered that the A/C fuse is blowing when compressor tries to kick in. I pulled clutch/compressor plug and fuse still blew. When I pulled plug on pressure switch fuse held. I put a fused jumper onto plug for pressure switch and fuse in cab held but fuse in jumper blew. Put cheapo can gauge on low side and it went to "warning' status (high, without compressor running). Is it a clogged something or is it electrical?
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I have recently bought a R32 2008, and when trying to turn the AC I don't hear the AC compressor clutch clicking, the fans are running normally (radiator fans ). What should I check ? Someone told me that maybe it's a compressor problem, and another one said that if the refrigerant gas is low the clutch won't be engaged.
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Last summer the a/c in the car was ice cold. And until last week, the compressor was engaging when using the defroster. I am sure it was working because I started it one night, switched the controls to defrost, and the belt squealed just a bit. I think it's become a little slack and I need to adjust it... Anyway, the weather has started to change, (in the 70's) so I thought I should kick on the a/c to make sure all is still good. It wasn't. The defrost will not kick on the compressor either? When I push the a/c switch, nothing happens. No green light in the switch, no compressor. The blower works though. I checked all the fuses that had anything indicating "a/c." All were good. I switched the a/c relay with the tail light relay, (seems to have the exact same ratings) no go. What gives? I figure it's not likely that it's low on Freon, it has never "short cycled." And, wouldn't the light on the switch come on under a low Freon situation? Lastly, why four pins on the low pressure switch? Any easiest way to check which system is the fault? Manually engage the compressor clutch, or maybe short the low pressure switch?
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I tried everything I can think of and the ac clutch still does not kick in. This is for my 2003 Camry with a 4 cylinder. I'm thinking perhaps the low pressure switch may be bad. Can't find it, where is the low pressure switch located if there is one.
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The dealer diagnosed my a/c as needing a new compressor and clutch. I had an a/c specialty shop install a remanufactured compressor and clutch. however, they could not get the compressor to kick on. I checked all fuses (all are good).
I checked the compressor continuity (good, 0 ohms). I checked the plug where the compressor clutch plugs in (it reads 12 volts). the funny thing is, it reads 12 volts anytime the engine is running (even if the climatroinc is turned off). I am definitely not an a/c expert and really don't know how this stuff works.
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In my 2001 2.0, my AC has been blowing hot air for a while now. It was intermittent at first but now is constant.
The compressor runs without going off when the AC is switched on. I can tell because I see the compressor clutch engaged and spinning.
I tested with AC manifold gauges and these are the readings I got.
Engine off : Low is 0, High is 135
Engine on, AC on full blast after running 10 min at 1500 RPM:
Low is 4, High is 135
Looks pretty bad.
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I am trying to figure out why my AC is not working. Both fans are coming on and the AC button is light up but it is not blowing cold. The charge was checked and it has a good charge. The compressor appears to not be engaging. I checked for power at the electrical connector for the AC compressor and my voltmeter is showing voltage between 3.1-8.3 volts. It jumps around between that voltage every few seconds. The fuses have all been checked and are in not broken. What else should I be checking?
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2000 jetta 2.0
so far i have replaced 2 fans ; thermal switch in radiator ; ran all the tests i can find ; all fuses and relays seem fine ; jumped compressor and it engages .
key on & car NOT running there is no power to the compressor.
I wanted to check the low pressure switch but every test is for a 2 wire set-up.... mine has 3 wires. which wires do i jump?
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