Question about 2005 Jeep Grand Cherokee

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Ac works but fan only works on high all other settings do nothing

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  • jakob_johnso Nov 19, 2009

    2wd 3.7l v6 manual ac

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2wd? 4wd? Engine size? Auto or Manual A/C?..... If its Manual a/c the blower resistor is bad, if its Auto A/C the Front Blower Module is bad.

Posted on Nov 19, 2009

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Heater only work on high


SOUNDS TO BE A BAD CONTROL SPEED SWICH

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NO FANS OR AC REPLACED FANS AUX FAN CONTROL MODULE FAN SENSOR AND STILL NOTHING


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Jun 16, 2012 | Cars & Trucks

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My 2001 yukon front AC fan only blows on high setting. nothing on the other fan settings.


Replace the blower motor resistor located in the blower housing under the dash on the passenger side and you will be good to go.


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Aug 26, 2011 | 2001 GMC Yukon XL

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The only way the AC works is with the fan on high. The climate control does nothing on my '94 Lincoln Town Car


Often when they only run on high, it is the fan switch that needs replacing.
On the lower speeds the voltage runs though some resisters to slow the fan, on high its a direct contact

Aug 06, 2011 | Lincoln Town Car Cars & Trucks

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AC was weak so had it recharged. Everything was fine for the rest of the day. Next morning I started the car, turned on the AC, was putting junior into his carseat when the AC quit. I turned it off then...


read the owner manual to see how the auto works. try the defrost mode whcih is a fail safe mode and should always come on unless a major system issue.

Oct 15, 2010 | 1988 Jaguar XJ6

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My AC fan keeps kicking on and off and is blowing very weak...does it need replaced? The AC is still cold. Also, my AC only works on high...would that be the blower resistor?


Yes I would highl suspect is the blower resistor. Try the fan without the AC and see if it blows only on high or on other settings. If it is similar to the when you have the AC on, then it is the blower resistor that needs to installed.

Aug 18, 2010 | 2002 Nissan Quest

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Fan stuck on HIGH, cant turn it off


there is a mosfet power transistor that drives the fan.it is probably shorted,applying full power to the fan at all times,even if the climate control is off

Jul 25, 2010 | 2005 Nissan Altima

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Why wont my heater or ac fan not blow in my car?


Check fuse panel for blown fuse first.

Dec 21, 2009 | 1995 Mercury Tracer

1 Answer

Ac/ heater fan only works on #4 high . is it the switch or the fan itself ? #1-3 nothing . ac is cold and heater is still hot.


u will need to replace the blower motor resistor, it is located next to the blower motor under the hood on the passenger side

Nov 02, 2009 | 2001 Ford Explorer Sport

1 Answer

2005 jeep grand cherokee 4.7 Ac fan lost the 3 lower settings, only the high setting still worked. For a while the lower fan settings would just come on, and then go out again. The high fan setting...


Well, the blower resistor handles the lower speeds and the hi-blower relay handles the hi speed only. if the fan still works on the lower speeds then the resistor is bad. if the fan doesn't work at all then your motor has failed and or burn't the relay out also. if you can get your blower to start by hitting the kick panel above the pass. side foot area then the motor is bad. if you are handy enough to drop the kick panel and access the motor then check the connections at the motor. Then wack the motor and see if it comes on then. you will most likely find the problem if you follow those simple rules above. Good luck.

Jul 31, 2008 | 2001 Jeep Grand Cherokee

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