Question about 1991 Honda Accord

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A/c worked fine then suddenly stopped. Blower works. Compressor clutch only engages if wired directly to battery, and then cools. How can I get clutch to work when I want it to?

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This indicates that there is a fault in the wiring. Check for A/C fuse.

Posted on Jul 29, 2009

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2 Answers

AC fuse and relay for 2001 Ford Expedition


Pull a relay out and use paper clip to jump. Usually cross corner. Watch compressor clutch and see if engages when key is turn ahead. Don't start car. If it does good. Now take alligator clips and check relay. Clip each wire to negative and positive battery post. Then clip negative to negative relay pin. And touch positive to correct pin. If it doesn't click do it another relay so you know your doing it right. If determined relay is good. And your compressor clutch did engage when testing it. You are low on freon.

Jul 11, 2016 | Ford Cars & Trucks

1 Answer

Help 2008 ford fusion heater and ac stopped working


1) TEST the fuse+ relar of a/c
see the next steps and fix it. God bless you
If so, the compressor is working and the A/C system probably contains enough refrigerant to make cold air, so the problem is inside the HVAC unit. Replace the motor that controls the blend air door (this is a difficult job and best left to a professional since it involves tearing apart the HVAC unit -- about an 8 to 10 hour job!).
If the compressor does not engage when you turn on the A/C, see if it will run by jumping the compressor clutch wire directly to the battery (use a fused jumper wire). If the compressor works when you jump it, and the A/C blows cold air, the system contains refrigerant and the fault is likely a bad A/C compressor clutch relay or a bad clutch cycling switch or pressure switch.
If the compressor does not engage when you jump it, the problem is a bad compressor clutch.
If the clutch engages but the compressor does not turn (the belt will start to slip and squeal), the compressor is locked up and you need a new compressor.
If the compressor clutch engages and turns the compressor, but the A/C still does not blow cold air, the system is probably low on refrigerant and needs to be recharged

10_5_2012_12_00_24_pm.jpg

Oct 05, 2012 | 2008 Ford Fusion

1 Answer

Ac vent blower


proceed according and fix it. God bless you
If so, the compressor is working and the A/C system probably contains enough refrigerant to make cold air, so the problem is inside the HVAC unit. Replace the motor that controls the blend air door (this is a difficult job and best left to a professional since it involves tearing apart the HVAC unit -- about an 8 to 10 hour job!).
If the compressor does not engage when you turn on the A/C, see if it will run by jumping the compressor clutch wire directly to the battery (use a fused jumper wire). If the compressor works when you jump it, and the A/C blows cold air, the system contains refrigerant and the fault is likely a bad A/C compressor clutch relay or a bad clutch cycling switch or pressure switch.
If the compressor does not engage when you jump it, the problem is a bad compressor clutch.
If the clutch engages but the compressor does not turn (the belt will start to slip and squeal), the compressor is locked up and you need a new compressor.
If the compressor clutch engages and turns the compressor, but the A/C still does not blow cold air, the system is probably low on refrigerant and needs to be recharged

10_5_2012_12_14_20_pm.jpg

Oct 05, 2012 | 2001 Oldsmobile Aurora

1 Answer

A/C problems


before tracking down the wire problem unplug the compressor and connect the wire directly to the hot terminal on the battery to make sure the clutch works it should engage

Mar 08, 2012 | 1998 GMC Blazer

1 Answer

My 1996 Ford Ranger A/C does not come on. The compressor clutch does not seem to even try to engage. Was fine one minute than suddenly just stopped working next time I turned the car A/C on


Please checck the fuse to the clutch and also the relay to the clutch drive. Perhaps there is a loose line here that is working intermittent.
Try to engage and disengage to see if the solenoid works fine.
If not check if the relay contacts are faulty and heating.
If so replace.
I hope this must solve the issue.

Aug 21, 2010 | 1996 Ford Ranger SuperCab

2 Answers

My AC suddenly stop working, I was driving and the AC was running but as I said it just start blowing warm air


Your A/C system may have lost its charge of refrigerant, or the compressor may not be engaging when you turn on the A/C, or the blend air door inside the HVAC unit may be stuck in the HEAT position so no air goes through the A/C evaporator.
Start with the compressor. Does it engage when you turn on the A/C?
If so, the compressor is working and the A/C system probably contains enough refrigerant to make cold air, so the problem is inside the HVAC unit. Replace the motor that controls the blend air door (this is a difficult job and best left to a professional since it involves tearing apart the HVAC unit -- about an 8 to 10 hour job!).
If the compressor does not engage when you turn on the A/C, see if it will run by jumping the compressor clutch wire directly to the battery (use a fused jumper wire). If the compressor works when you jump it, and the A/C blows cold air, the system contains refrigerant and the fault is likely a bad A/C compressor clutch relay or a bad clutch cycling switch or pressure switch .
If the compressor does not engage when you jump it, the problem is a bad compressor clutch.
If the clutch engages but the compressor does not turn (the belt will start to slip and squeal), the compressor is loced up and you need a new compressor.
If the compressor clutch engages and turns the compressor, but the A/C still does not blow cold air, the system is probably low on refrigerant and needs to be recharged. If you Have an A/C gauge set, hook it up and see if the system has any pressure.
If it is out of refrigerant or is low, check for leaks, then have the A/C system vacuum purged to remove air. After the air is out, it can be recharged with the specified amount of refrigerant. It is important to get any air out as this will reduce cooling efficiency and may make the compressor noisy.
My advice to you if you know nothing about A/C service is to find a repair shop that specializes in A/C repairs and let them fix your cooling problem for you. Today's A/C systems with automatic climate control are very complex and reuire special tools and know-how to diagnose and repair.

Jun 03, 2010 | 2003 Dodge Stratus

1 Answer

Ac blower only works on hi, but compressor clutch not coming on,


The blower motor only working on High is a sure sign the blower motor resistor pack is defective. Replace it. A/C compressor clutch no engaging may be nothing more than a blown fuse or loose wire. Make sure the A/C is set to cold.

Sep 30, 2009 | 2005 Mitsubishi Galant

1 Answer

Ford crown victoria ac not working. need help to centralize on the problem - compressor does not engage


If the compressor doesn't engage..it could be the pressure switch and or it could also be low in a134 to the system.
Best would be to jump the clutch wire from the compressor (i.e. direct tht wire on the positive terminal or any nearest available 'live' point).
Let the car's engine run and also the AC control switch to "ON' postion having the blower fan inside the car running.
Once done all this check if the compressor is now running and if theres cooling inside the car and also best would be to check the sight glass for any bubbles , this is normally situated around the filter/drier at around the condensor infront of the radiator or within the area.
If the compressor runs and theres cooling thn theres a problem with your pressure switch, if theres low cooling thn you may need to recharge the a134 and run a leakage test.
Hope this helps!

Aug 23, 2009 | 2003 Ford Crown Victoria

2 Answers

What would be wrong with a 99 caravan if the ac stopped working suddenly?


either the clutch on the pump went out or the system has no freon left.

Jul 10, 2009 | 2003 Dodge Grand Caravan AWD

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