Question about 2000 Ford Focus

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AC problem After replacing all and I mean all the relays and fuses the AC still will not kick on. Direct current to the compressor engages the clutch but still no fan or cool air. I am almost bald from ripping my hair out due to the frustration this problem has given me.. Can you help with any of these problems?

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  • billybob joe Jun 26, 2008

    checked all fuses,checked blower motor, and put in new blower resister... but a.c. still won't work what else should i do.

  • wadlrs Jul 07, 2008

    I am having the same problem, this one is the most anoying of all the little ones I have with this car. I am burning up in FL!! I feel your pain TX.



    Mine only stopped 3 days ago. We've tested all the fuses and relays. Like with TX, I feel a faint amount of air from the vents, cooler when the thermostat is cold and hotter when it's hot. I was told it could be the Blower Switch or the Blower Motor. Which are accessed thru the dash. I hope to hear any solutions that finally work.

  • Anonymous Jul 13, 2008

    it is not cool...



  • jellybeans31 Mar 01, 2009

    i have a 2000 ford focus se and the heater or aircondition is not working even the defroster can someone help

  • jellybeans31 Mar 01, 2009

    i have a 2000 ford focus se and the heater or aircondition is not working even the defroster can someone help

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Ford uses an archaic resistor pack that controls the heat/cooling output. If this goes you get very little heat or AC.

Its generally in the air vent under the dash--it has 2 wires you just twist and unclip--the resitors and wires rust--it looks like something out of a 1930 tractor.

Anyway its about $20 from Ford--the part number is FMC4L3Z19A706AA--thats for a 99-01 Expedition; I was told there all the same--

Good Luck!

Posted on Jul 15, 2008

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We are going through the same problem, our ac stopped working about 3 yrs ago, we have had it checked out 3 times by different mechanics and they all scratch their head with no idea of the problem. We have no blower but you can feel a little heat and air coming out. We have been reading the boards and it appears this is a pretty common problem in these cars, along with a few other things I won't go into, we have heard the blower motor thermal resistor, we just replaced it, $20 at ford, did not fix the problem. Next we will try to replace the ac heater blower switch which involves removing the radio. This part is $66 at Ford but there also seems to be a blower motor switch that maybe different and cheaper, still checking out this. Let us know if you find an answer.

Burning up in Texas

Posted on Jun 24, 2008

Recall

Posted on Jul 09, 2008

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2002 ford focus se over heating fans not working and ac not working no water flow thru the radiator what do i need to do help

Posted on Jul 12, 2008

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1 Answer

Flashing AC button blows hot air,Need under hood diagram of fuse/relay- Also, how do you check the sensors just in case it isn't the relay?


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I get no power at the ac compressor clutch.


Take 12 V Positive wire direct from battery to wire from clutch.
Does The Clutch Engage
If No Clutch Needs Replacement
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No current to ac compressor


A mechanic would start at the compressor and work back.
Did you jumper the low pressure switch, or the relay, or put power directly to the ac clutch ?
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Compressor and fans do not turn on until rev engine


I passed this question the first time I read it, so I will take a stab at it now.
The fans don't come on until the compressor has pumped the freon pressure up to say 150 or 200 psi. And the compressor clutch has to have voltage to engage the clutch.
I wonder if the clutch is going and needs 14 volts instead of 12 to engage ? Or the relay that powers the clutch ?
Speeding up the engine would increase voltage from the alternator.
This is assuming the serpentine belt is tight and everything else is working correctly.
I think I would swap the relay with another and put a meter on that circuit to the ac clutch to see what it takes to engage it.

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My acdesnt work.........have no current to ac compresor


it its one out of 3 things..

1.) Fuse under the hood

2.) AC Relay..

3.) The Ac controll unit on the dash..


I do hope your speaking of the blower(compressor) below the dash cause the compressor in the engine doesnt use eletricity..

Mar 15, 2010 | 2004 Nissan Altima

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AC Clutch engages as soon as battery is hooked up


Your A/C relay may have gone bad and has disconnected the power to the A/C compressor clutch.
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Good luck and hope this helps. Keep me posted and be glad to help.

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