Question about 1993 Dodge Caravan

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A/C Switch is on, but fans and A/C clutch isn't engaging. Relay and fuses check, but still no go. Worked when parked, hour later nothing.

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  • 36 Answers

Low freon...system needs recharged

Posted on Jun 19, 2009

  • Denny Boring Jun 19, 2009

    Low freon...system needs recharged

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1 Answer

Replaced fuel pump and filter and car still wont start. Have new battery, starter, water pump...


I saw what you replaced, didn't see any testing? Make sure battery has a full charge and battery connections all good, that is positive and ground, both are important. Check fusible links where applicable? Do any electricals work, dash lites--headlamps--anything?
If needed check fuses in fuse box for voltage use a test lite. Some fuses are hot all the time, some go hot with the key on. Just pick any component that isn't working and is fuse protected, check voltage at the fuse.
The starter motor usually has two voltage circuits, one comes from the battery, hot all the time. The other circuit should go hot with key in the crank position and is wired through neutral or clutch switch, depending on the tranny. It is possible to be wired through starter relay, depending on the vehicle. Any starter testing, make sure tranny is in park or neutral and parking brake is set.
I need year--make--model.

Nov 07, 2016 | Cars & Trucks

2 Answers

Vt aircon compressor wont engage


check the freon, if there isn't enough it won't engage, could also be the low pressure switch or a fuse.

Sep 05, 2012 | Holden Cars & Trucks

1 Answer

AC clutch not engaging fuse or frozen clutch?


You could find out if the clutch is frozen or not by turning it by hand. Engine off. If not frozen it could be the fuse or it could be that there isn't enough refrigerant in the system. Also it is possible tHat the switch isn't working, check the relay too.

Jun 18, 2012 | 1996 Dodge Caravan

1 Answer

BLOWER MOTOR QUIT AND FAN SWITCH BURNED OUT ON 98 CHEV SILVERADO


Sounds like you didn't add oil , when freon goes the oil goes also. When you say locked up , you mean the compressor won't turn when the clutch engages? Either too much freon or the oil was gone from the system when you put freon in it.

May 22, 2017 | Chevrolet Silverado Cars & Trucks

1 Answer

I have a 1998 chevy cavalier, I was driing and the AC was working. I stopped and when I started teh car again a couple hours latter the AC was not working. The fuses are good and the comressor and dryer...


Did you check the AC relay? Usually located under the hood, try swapping it with another relay with the same part number that isn't required to run the vehicle. If the AC now works, then replace the relay. If not , then verify compressor operation. With the engine running, watch the compressor clutch while someone else turns on the AC control. The clutch should engage and begin to run. If not, then find the pressure cycling switch usually located on the accumulator. Disconnect the harness and jumper the contacts. With the engine off and the key turned on , turn the AC control on. You should now be able to watch the clutch engage and disengage by removing and replacing the jumper lead. If it does, then replace the switch. I hope this information is helpful. Thanks for trying Fixya.

Jul 04, 2011 | 1998 Chevrolet Cavalier

3 Answers

Put in a new dash control panel,new pressure switch,full of freon.fuses and relays are good. jumped low pressure switch.still no power to ac clutch. HELP..


YOUR a/c compressor is cut on by the vehicle pcm(computer).pcm sends a signal to a/c relay to energize relay which sends power to compressor. Have you checke dall the fuses with a test light? last dodge i worked on had a blown horn fuse which powered a/c system also. block said nothing about this. here is a diagram999f7d5.gif

May 21, 2010 | 2003 Jeep Liberty

1 Answer

The Saturday before Easter I was doing last minute shopping,when i got in the car to leave my headlight wouldn't work.The parking lights and high beams work, I changed the bulbs that didn't work. I got in...


Try temporarily swapping #45 Cooling Fan relay and and #46 HDM relay in the under-hood fuse block, and see if the low beams come on.

The one originally in the HDM #46 socket is bad. That relay is actually is a solid state module, not a conventional relay, and will cost you anywhere from $25-45 at the dealer.

HDM = Headlight Driver Module

Also known as a solid-state relay, since instead of relay contacts and a coil, it uses a power switching transistor capable of running the headlights (and the fan clutch in #45) at less than 100% power, to provide daytime running lights, and control the fan clutch engagement for the engine cooling fan.

Thank you for using fixya and be safe.

Apr 16, 2010 | 2006 Chevrolet Trailblazer

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