Question about 2001 Hyundai Elantra

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Elantra 2001, A/C compressor clutch engages and disengages every 2 sec.When i first start the engine I got cool air then, after the engine is hot, the problem starts and bye bye cool air!

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  • mike loshbough
    mike loshbough May 11, 2010

    your low on freon have it checked

  • Anonymous Mar 15, 2014

    power switch comes on cooling fan comes on but clutch does not engage

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  • 84 Answers

The a/c clutch engages then disengages intermittently with the Hyundai's a/c system when there is little or no refrigerant in the system.

Have your a/c refrigerant (R134 or R12) checked and refilled, and have the system inspected for leaks.

Hope this helps.

Posted on Jun 29, 2009

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Posted on Jan 02, 2017

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1 Answer

How do I fix my car air conditioning stopped when I accelerate


  1. Check the compressor has engaged. Identify the location of your compressor. Look at the pullyer and you should be able to see if it spining or not. The engine running turn the A/C on max cool, set fans high, and make sure that the clutch is engaging on the compressor. The pulley spins any time the engine is running. The center part of the A/C pulley only engages when the A/C is on. If the clutch is engaging and disengaging rapidly, the refrigerant may be low. For more info check here: http://www.mercedesmedic.com/ac/

Jan 28, 2016 | 1992 Mercedes-Benz E-Class

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Compressor Clutch disengages and Radiator Fan starts to run loudly


The radiator fan should turn on when the a/c clutch engages as this is designed to increase the cooling of the engine as the a/c increases the engine loading. But the compressor clutch should stay engaged as long as there is need for cooling, and disengage/re-engage as the temperature control calls for cool air. The radiator fan will shut off IF the engine temperature is cool enough to do so, as it is regulated by heat, as well as the A/c override.

If your air conditioning is not cooling the car and the clutch is simply disengaging prematurely, have the temperature control and relay checked for proper operation. Also have the refrigerant level checked to assure there is adequate refrigerant in the system and no leaks. My first bet would be the relay or the thermostatic temperature control under the dash.

Jun 14, 2014 | 2006 Chrysler Crossfire

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2001 hyundai santa fe air conditioner the air conpresser works ad the blower works but can't get cold air.


might be the cooling gas freon
or could be simply the clutch that engaged disengage the compressor has a problem with its solenoid

Jun 14, 2011 | 2002 Hyundai Santa Fe

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2005 Nissan Altima 2.5s 4 cylinder. 1) When stopped in Drive and the air conditioning on - the engine rattles. 2) When stopped in neutral and the air conditioning on - no rattle. 3) When stopped in drive...


no it could be air condition clutch that engage/disengage the air condition compressor and disengage it through the pulley or could be the pulley bearings one of them . also check the solenoid that controls that clutch .
have a good luck sir .

Jun 11, 2011 | 2005 Nissan Altima

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Unit working but not blowing cool air and not cooling truck down


Check first if clutch engaging. Sometimes the clutch engages but when the tempt in the engine compartment rises the clutch disengage. This is due to a problem with the magnetic clutch assembly located behind the clutch. Has two wires that will produce the magnetic field to help engage the clutch. It requires special tool to r/r and some vehicles can be done with the compressor installed.

Jun 03, 2011 | Nissan Hardbody Cars & Trucks

1 Answer

2001 Volvo S80 2.9L air conditioner stops cooling after about 15 to 20 mins


This could be one of many problems so it's probably best checked by someone with the correct tools and knowledge.

That being said,

With your engine cold, open your hood and start your car. Check to see if your cooling fan is engaged, take note of its speed if it is. Then turn on your AC and listen for the compressor clutch to engage. once you hear it, check to see that your cooling fan is blowing, if it wasn't before. The fan should be on and in high speed whenever your AC is on, whether the engine is hot or not. If it is not, then the reason for losing cold air is that, due to the lack of being properly cooled, your freon pressure is getting too high and is causing the compressor to turn off.

If the fan is blowing as it should be, you may have a faulty compressor or the clutch on it may need to be shimmed.

Another culprit could be that your system is low on freon or the switch that senses the pressure is faulty.

And yet another culprit could be a faulty relay that is overheating and shorting out.

Sorry I couldn't give you a difinitive answer as to what the problem is, but without diagnosing it myself, this is the best I give you.

Good luck!!

Jun 15, 2010 | 2001 Volvo S80

1 Answer

My 2002 Expedition air conditioner will sometimes blow hot air and others cold air


I would check the following possibilities:
1. Is compressor clutch working? - You need to do this when the ac is blowing hot air only - locate compressor drive pulley on engine - rubber belt wraps around it. Start engine and set to max ac. When the ac is blowing hot air, look at the center of the compressor drive pulley using a good flash light - watch it for a while, it should be spinning with the pulley - this means the compressor is engaged. If not, the compressor is not engaged. If your ac is blowing hot air, then the compressor should be engaged and running (trying to cool). If it is not engaged, then your compressor clutch is probably going out. Could be low voltage to clutch, but more likely the clutch is worn out and only working some of the time. Note: if working normally, the compressor clutch will engage and disengage in cycles- but the air should always be cold. If clutch is bad, compressor would need to be replaced (sold as one unit). This is tricky to diagnose and could take some time - you need to do it when ac is blowing hot air but set to max cooling.

2. Low on refrigerant or refrigerant has moisture in it? If your ac blows cold initially after being off for a while, then heats up, and continues to regularly cycle back and forth between hot and cool air, then the system may be low on refrigerant or the refrigerant may have moisture in it that is freezing and restricting refrigerant flow. An a/c shop can check refrigerant level and even replace refrigerant if moisture is suspected.

Could be other issues, but I would start with these.

Good luck

May 07, 2010 | 1999 Ford Expedition

1 Answer

2001 honda civic Air conditioner will not blow cold. I went to recharge it the other day and when i put the gauge on the low side the pressure was extremely high 80psi+. Why? Is this something i can fix??


Air conditioning systems are always high-pressure systems,simply because the refrigerant used is a gas forced to become liquid.

In fact, a loss in pressure in the cooling lines means that your system will have no cooling capacity.

Your problem description points towards your compressor not engaging. There could be a switch in your car's interior/dashboard that indicates 'COOL' or A/C (or something like it) that should manually engage/disengage your a/c compressor.

In case this still does not work, your compressor clutch or the electrical system engaging this is faulty and will need the attention of a qualified service technician.

Hope this helps.

Jul 01, 2009 | 2001 Honda Civic

1 Answer

2005 Hyundai Elantra A/C


sounds like your A/C compressor has failed.
Thermostat only controls coolant going through engine - not the refrigerant in the A/C system.
The bad compressor is causing extra load on the engine and making it heat up.
Unplug the compressor and take a test drive.
If it is unplugged - the clutch will not engage.
see if it heats up - and report back with your findings.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

Apr 23, 2009 | 2004 Hyundai Elantra

1 Answer

Screeching noise, then a/c stops blowing cold air. Still blows air, just not cold air.


it could be the air conditioning clutch going out. to check turn your car on and idle it with ac on and hood open. at the ac compressor it will have a pulley on it with a clutch that engages when the air conditioning is on. if it engages and disengages it can be the clutch itself has gone bad, the ac clutch will also disengage if there is not enough freon in the ac system, will also engage and disengage if the pressure gets too high in the ac system. Depending on the year of the vehicle it will disengage at full throttle and come back on when you are not at full throttle.
If it is a metallic sounding screech for example take a coke can and drag it across pavement kind of sound it could be a bad compressor or a bad ac clutch. If it is a more rubbery sound for example a car spinning its tires kind of noise it could be a loose belt.

1. Check to make sure all belts are tight under hood
2. start car and look at ac compressor to make sure compressor pulley is turning and that the fan clutch is engaged spinning


Aug 09, 2008 | Mercedes-Benz 400-Class Cars & Trucks

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