Question about 1991 Dodge Dynasty

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91 dodge dynasty blower motor

I went to replace the blower motor, and once the new one was installed its not working. All fuses were ohmed, even the one under the hood. During a voltage check there is no power coming to the wires for the blower motor, even when the switch is on high with a/c running. What am I missing?

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  • miamibrice Oct 12, 2008

    Does a resitor have anthing to do with motor not working??



2 Answers

Check the blower motor resistor located behind the windshield washer fluid. just replaced one and it worked.

Posted on Oct 19, 2008

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Trace the two wires by analyzing which power are you missing...

run a wire from the positive of the battery and put the red wire of the volt meter to it and place the black wire of the meter to the black that goes to the motor.

if there is 12 volts, you have a negative terminal to the motor.

if you dont have, then you dont have the negative terminal to the motor.

next transfer the wire from the positive terminal of the battery to the negative terminal of the battery.

now put the bllack wire of the meter to the wire and test the red /or blue wire that goes to the motor.

it should have a reading of 12 volts.

if there is no reading , then there is no positive 12 volt present on the blue/red wire.

from these test, you can know which wire does not have the power.

that is what you are missing..

tnx 4 using fixya,




you could have just missed the black wire to be screwed on the housing of the blower motor.

Posted on Aug 05, 2008


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1 Answer

Need to replace ac/heater fan resistor I am not sure of the location does anyone know? Thank You

The Blower Motor Resistor is located on the passenger side firewall, not far from your A/C's H-Valve (or expansion valve), going inside of the vehicle. The blower motor resistor has a 4 or 5 way black connector plugged into it and this is the only visible portion of the Resistor you will see. Remove the wiring connector and remove the 2 or 3 screws with an 8 mm or 5/16" socket (8 mm and 5/16" are the same). Once the screws or fasteners are removed, just pull the blower motor resistor out of the firewall and if you look at it, it will have various coils of wire on it, sometimes it will show burnt coils, but you can always check the various coils with an Ohm-meter.

Aside from that, install the new Blower Motor Resistor and Voilà! Your inside Blower Motor should work just fine.

A brief note here, if your fan doesn't work when the fan switch is on High, then it's not the Blower Motor Resistor, but possibly the Blower Motor itself. Should this occur, please get back to me insofar as how to replace the blower motor and why the blower motor's wires have to be twisted...even with the new blower motor fan.

Best of Luck,

"00 Buck"

"Still living on the Right Side of Dirt..."

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1 Answer

1993 Dodge Dynasty

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Hope helped with this (remember rated this help) Good luck.

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it could be a 7 dollar resistor thats bad. Thats located behind the fluid washer resovoir.

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1 Answer

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Blower motor is located under the passenger side of the dash behind the glove compartment.

Jun 14, 2008 | 1990 Dodge Dynasty

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