Question about 1998 Chrysler Town & Country

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The a/c clutch wont engage

The a/c clutch relay is working but the clutch isnt engaging. I dont have any schematics and trying to pinpont if it possibly the cycling switch, 3 wire switch between the txv and compressor. About a year ago I had replaced the txv, dryer and evaporator due to it leaking. I didnt know they held so much and didnt charge it fully. It is no fully charge from what my gauges are telling me but will not kick on??

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  • Chrysler Master
  • 13,758 Answers

Did you try jumping where the Clutch relay plugs into the fuse/relay box ? Pin 87 & 30 are the compressor clutch coil power supply . If you look on the bottom of the relay you will see four set's of numbers 30 & 87 , 85 & 86 . If you take a piece of wire an jump 30 to 87 this will send B+ voltage to the clutch coil engaging the compressor . Is the PCM turning on the relay ?
The Trainer 40 When the compressor won compress

Posted on Jul 29, 2017


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Posted on Jan 02, 2017

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SOURCE: 1998 Chrysler Sebring JXI Convertible Blower Motor Not Working

Sounds like it in the switch or the electrical plug at the switch.The electrical plug could be burnt and need repairing or replacing. Need to remove the dash fascia, Careful not to damage clips. If the cover has no visible screws or bolts, then it clips into place. Unbolt heater controls and pull contol forward. Not a fun job but with patience you should be ok.

Posted on Mar 11, 2009

  • 205 Answers

SOURCE: AC Wont charge after replacing components

whenever the ac system has been opened it should be hooked up to a vacuum pump designed to evacuate the ac system of any foreign debris and oil etc and after should be able to hold a vacuum to show that there are in fact no leaks then if all is ok at this point you can then charge your ac with the proper freon specified for you car when the pressure reaches satisfactory level the ac compressor will then cycle on you should not bypass the low pressure switch

Posted on May 30, 2009

  • 27 Answers

SOURCE: AC Wont charge after replacing components

low side should never read 110 means it was overcharged. normal readings are about 30-50 lbs on the low side. the pressure switch reads high and low if the pressure gets high it turns on the compressor low shuts it off however the high side also has a pressure switch if it gets too high it shuts off the compressor. **** down the system and pull it into a vacumn start the vehicle and put the ac on full blast. then charge it with freon on. no matter what the ac system will take some freon to turn on the compressor. but make sure that expansion valve is the right one that matches up to the old valve there are too many valves that dodge has made that part stores get them mixed up with another vehicle that has different features.

Posted on May 30, 2009

  • 1 Answer

SOURCE: Airconditioner compressor (clutch) on 2001

The problem turned out to be a blown fuse labelled EBL Clutch, located in the instrument console (side panel in the dashboard next to steering wheel on a RHD model).

I downloaded the manuals of the Neon and it advised a sequence of checks to be done:
1. Test High Pressure switch located on compressor - check that the switch w/o/ cable gives a closed reading, then test with bypass in cable.
2. Test Low pressure switch located on accumulator, ( I could not find this switch). Bypass of this switch should engage the compressor clutch
3. I discovered the blown fuse when trying to activate the rear window heater and saw that the light on the switch did not activate - went looking for the fuse for this device and then found the EBL Clutch, really by accident. Shows you how confusing an abbreviated label on a fuse can be and that it does not always support the significance of it.

Other observations:
1. A/C compressor cannot run non-stop and must be controlled by the A/C controller. Hard wiring the clutch and running the engine for a few minutes led to the compressor shuddering and then discharging some gas through the saftefy valve. Normally this power supply would have been interrupted by the high pressure valve.
2. Release of coolant gas from the high pressure safety valve located on the compressor may indicate a faulty high pressure switch, but the primary or underlying reason may be due to a blocked Dryer in the A/C system.
3. The Daimler Mercedes Neon Agents, and an A/C company and an auto electrical company all attended unsuccessfully to this problem. No discredit meant in any way, it just shows that the incorrect label here makes solving such an ordinary problem very problematic. If any advice can be given to the Agents, read the manual.

Posted on Dec 24, 2009

  • 78 Answers

SOURCE: ignition switch problem 2000 town and country

you need new ignation switch

Posted on Jan 10, 2010

Testimonial: "everything works after replacing the switch - it seems all it was a piece of plastic missing on the tip of the switch - thanks"

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1 Answer

The aircon system is fully gased yet the compresser wont engage, are there pressure switches in the system

Yes , two , a low pressure an a high pressure cut off switch . If either of these were bad there would be a DTC - diagnostic trouble code stored in the PCM - engine computer . Does your Captive have manual or automatic heating an A/C ?
Pressure transducer switching incorporates the functions of the high-pressure and the low-pressure cutout switches along with the fan cycling switch. The pressure transducer is located in the high-side liquid refrigerant line behind the right strut tower, between the right strut tower and the front of dash. The output from this pressure transducer goes to the electronic control module (ECM), which controls the compressor function based on the pressure signal.
HVAC Compressor Clutch Does Not Engage


Did you perform the Diagnostic System Check - Vehicle?
Go to Step 2
Go to Diagnostic System Check - Vehicle


  1. Start the engine.
  2. Turn the blower switch to any position except OFF.
  3. Press the A/C switch to the ON position.
Does the A/C compressor clutch engage?
Go to Testing for Intermittent Conditions and Poor Connections
Go to Step 3


  1. Connect a scan tool.
  2. Use the scan tool to command the A/C compressor clutch relay ON. When the relay is energized the cooling fan will also run at low speed.
Does the A/C compressor clutch engage?
Go to Step 8
Go to Step 4

Dec 04, 2015 | Chevrolet Captiva Cars & Trucks

1 Answer

My ac clutch is not compressor,dyer and hoses, new relay fuse in engine compartment...if freon is low will that make clutch not engage?

yes there is low pressure cycling switch on low side
bypass those wire and if the clutch engage then your low in freon or switch defect

Oct 02, 2013 | 1996 Chevrolet S-10 Pickup

1 Answer

2001 f150 a/c compresser clutch wont engage

are you getting power to the clutch compressor? if no power check the "wide open throttle" relay. the relay can go bad and disrupt power to the clutch. also check the voltage on the pressure transducer to make sure it is reading line pressure correctly, will need a scan tool to access this info.

Jun 17, 2012 | 2001 Ford F150 Styleside SuperCrew

1 Answer

2006 didge mega cab 5.9 diesel..A/C clutch will not engage...Dealership dianosed a bad a/c compressor coil..I did not let dealership do the 1635.00 job...I purchased NEW replacement parts and had a local...

twstn79, Try checking the fuse and relay located in the power distribution box in the engine compartment. There is a legend on the inside of the cover to tell you which fuse and relay to check. For the relay, just switch it with the horn relay and try the horn to test this. Check the plug at the low pressure switch to see if there is power there. It is the low pressure switch that sends power to the clutch to engage it. If the fuse and relay test good and you have no power at the low pressure switch plug then the problem could be in the wiring and will have to traced. If there is power at this plug then check the switch itself. The switch can be checked with a DVOM meter. Check the switch, with the engine off, for continuity. If you get no reading then the switch will have to be replaced. Another possibility is the switch in the dash panel and/or any associated wiring. Good luck with this.

Aug 12, 2011 | 2006 Dodge Ram 2500

1 Answer

Compressor isnt turning at all dont know if i need new one or if i need new clutch how can i tell

The pulley on the compressor is always running when your engine is running, but the only time
it compresses the freon is when the clutch engages, if the compressor's pulley was not turning,
it would have already snapped a fan belt or your serpentine belt. voltage runs from your fuse box
thru your air condition switch on your dashboard to a low pressure switch that is located at the
accumulator a long cylinder,close to the firewall under the hood or close to the condensor, front
of the car. the switch detects freon pressure in the accumulator, if there is freon pressure, the switch
will stay closed and allow voltage to go to the compressor clutch to engage it and compress the freon,
if there is no freon pressure the switch will open, and there will be no voltage to air compressor, its a
saftey switch to keep your compressor from getting damaged.its possible that the switch could be bad
it may not have voltage at the switch, or it may be open because there is insufficient freon pressure.
check and make sure there is freon in the system.check for voltage at the low pressure switch if you have freon in your system and voltage at the pressure switch, set your ac on high, pull the molex off
the switch, and jump it out with a jumper wire, if the clutch engages and your car starts to cool, just
replace the switch. if the clutch engages but does not cool, then your ac system has some blockage
in the lines. if the clutch does not engage at all then it would be the compressor clutch. good luck!

Aug 03, 2011 | Buick Century Cars & Trucks

3 Answers

My A/C clutch stopped working. The clutch is OK because when I hotwire it, it engages. The electrical commard circuit is at fault. The button on the dash lights up, the two fuses look OK. I've changed the...

yes, but your ac system contains switches, one low preasure switch to shut compressor down when freon is low, this is to avoid compressor damage,if low on freon the compressor will not turn on. the first thing to do is make sure the feron is full, you will need a teck to do this, i dont think you should atempt this, its high preasure you may cant hurt or damage your system if not done right.

May 11, 2010 | 1999 Nissan Altima

2 Answers

Ok hear we go agian 2000 ford taurs 3.0 lit no a/c when i jump the compressor with a jumper wire. it works fine and i checked the high side swtich it works fine and the low side works ok to.

There are 3 likely problems:
  1. system could be air locked; when recharged, its possible more air than refrigerant was pumped into the system
  2. clogged or bad expansion valve
  3. AC clutch is bad; although it will engage when you jump it, the clutch could still be bad preventing it from engaging when you turn on the AC
Hope this answers your question. Best of luck.

Jul 31, 2009 | 2000 Ford Taurus

1 Answer

Electricity is not reaching the a/c compressor.

If it engages when you bypass, it is not the magnetic clutch.
It could be a relay or the low pressure cycling switch. I would jumper the cycling pressure switch connector. If it runs, I would check to be sure you have enough pressure first with compressor running. If ok, change the cycling switch

Jul 03, 2009 | 2004 Toyota Corolla

1 Answer


Your best bet is to carefully check the wiring schematic and follow the clutch activation wire from the clutch to your HVAC control panel - schematic is available in the service manual, which you can find at

Oct 08, 2017 | 1987 Oldsmobile Delta 88

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