Question about 2004 Jeep Wrangler

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Heater blower switch only works on high

My 2004 jeep wrangler heater blower switch only works on high, i think that is the problem, is it a big job to replace this?

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I'd replace blower resistor, usually found under hood on firewall on passenger side, or on duct work, inside under dash on passenger side,close to blower motor.

Posted on Jun 01, 2009

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It may be the blower motor resistor

Posted on Jun 01, 2009

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1 Answer

1988 jeep wrangler heater blower motor doesn't work


on high ?
bad fuses
Hi works, and others speeds dont, bad switch or blower resistor bad.
hot wire the blower motor , does it work now. bingo, bad controls.

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They are near the blower motor as the air is used to cool the resister, usually on the bottom of the blower housing.

Mar 30, 2010 | 2006 Jeep Wrangler

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2001 Jeep Wrangler heater blower stopped working


Yes I would go with the switch, BUT, does it have a resistor bank? That is, how does it reduce the speed? Many systems use resistors to lower the speed. Burnt or bad connections can cause this as well.
You can test the blower motor by connecting direct power from a source like the cigarette lighter if you are handy.
Most of the time the lower speeds konk out but the high speed continues to work this is the resistor bank that goes out.

Mar 25, 2010 | 2001 Jeep Wrangler

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I have a 1999 Jeep Wrangler and the heater fan stopped working for all the fan speeds. The fuses are fine. How do you know if it is the blower resistor or the blower motor?


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Feb 13, 2010 | 1999 Jeep Wrangler

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Blower motor for heater only works on high....what do you think I need to change. Relay or Resistor.


If the heater only works on the high setting, your problem is the heater fan resistor, not the relay.

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1 Answer

1999 jeep wrangler heater blower


you need to change the resister block for the fan. it is located on the heater duct near the fan... there is a connector on it and two or three screws holding it in.

Robert

Please take a moment to rate this solution thanks

Feb 21, 2009 | Jeep Wrangler Cars & Trucks

1 Answer

Defrost fan quit working.


Check it with a test light or Multimeter for power to blower motor first, with switch on high. If no power to motor, problem is elsewhere. Here's a link that will help you. Click on the pictures to expand.

http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528008ac7f

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1 Answer

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Check the blower motor resistor, I,m not sure where it is located on your vehicle most are on the firewall under the hood.

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