Question about 1998 Ford Contour

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How do I know if the blower motor needs to be replaced, or if it's the resistor?

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  • kittycat0777 Sep 27, 2009

    Yeah it doesn't work AT ALL. How do I do the jump?

  • kittycat0777 Sep 27, 2009

    It doesn't work on any speed, so I did what u said but nothing happened. ?.

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If it doesn't run at all then the problem is likely the motor, if it has only high speed then the resistor is defective, but I have seen the resistor cause an inop blower at any speed on this car, so test the blower 1st by jumping 12 volts to the motor connector on the underside of the passenger dash.

Posted on Sep 27, 2009

  • yadayada
    yadayada Sep 27, 2009

    u will need to run a 12 volt jumper wire from battery YOU make from lamp cord and alligator clips from Radio Shack.

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If the motor works at all, any speed , then its good. if it doenst work on any speed then turn it on high, and rap on it, if it starts working, it will need to be replaced. Now, if it only works on certain speeds, or only on high, then you will need to replace the resistor. thanks for asking, so many questions are vague, but that was a good question.

Posted on Sep 27, 2009

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If you have one, use a Digital Volt Ohm Meter (DVOM) and find an electrical diagram for that year and model vehicle, and test all of the circuits to see if your current drops or disappears after you resistor while the car is running and the blower motor is supposed to be on. (or have a friend or technician do it). If you find that its not the resistor, than it is mnost likey the blower motor it self.

Posted on Sep 27, 2009

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2 Answers

How to replace the blower motor resistor


David, Check the attached links,instruction and guides on replacing blower motor resistor. you can also google search your make and model# blower motor resistor replacement. Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
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https://www.automd.com/633/how-to-replace-a-blower-motor-resistor
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Where is the heater blower resistor located?


The resistor pack wires are usually attached to the same wires as the blower motor. I strongly recommend replacing the blower motor at the same time if possible. It's the blower motor that is usually the reason for the resistor pack going out. So if you put just the resistor pack in, and shortly after, it goes out again then you'll know the blower motor needs to be replaced.
I hope this info helps!~subyguru~

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If your blower works at some speeds and not others, the likelihood of the blower motor needing to be replaced is low. The more common problems would be either the switch or the resister that regulates the motor speed. The resistor is usually located in the air duct under the dash.

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Ok, may sound like a dumb question,but how do you know if its a blower motor resistor problem or just the blower/motor. Ive been reading solutions for problem on the A/C blower still blowing air but speeds...


The blower motor resistor is usually only switched into the circuit for the lower speeds and for the fastest speed the resistor is bypassed so I guess the motor needs to be replaced if it does not work in any position. However, sometimes the blower motor is not protected by a fuse but by an automatically resetting sealed circuit breaker usually located not far from the motor. The circuit breakers dont fail very often, If the fan works for a few seconds and then stops and then does the same thing several minutes later then the fan motor definitely needs replacing.

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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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2 Answers

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The resistor will cost you 12 dollars at your local dealership. It's located under the passenger side dash and is very easy to replace. The resistor installed at the factory is defective and the new one from Mopar is the correct resistor. It would be worth you while to replace it now while you're working on the blower motor. The blower should still work on the high setting, even with a bad resistor but, replacing the resistor may fix the problem.

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The blower motor resistor is located near the blower motor. It is held in place by 2 screws, and has a wire clip connected to it. Very simple fix.

I hope this helps you, and I wish you luck on your repair.

May 01, 2009 | 1995 Ford Thunderbird

1 Answer

Durango vent blower fan


The blower motor resistors are known for going bad. Usually its because the blower starts drawing too much current. What I would recommend doing if you can and have the tools, is to check the blower motor connector to make sure 12 volts is present. If so than I would recommend replacing the blower motor resistor. Then if the same issue ever happens again and the blower motor resistor is bad again, you will need to replace the blower motor and the blower resistor as the final repair.
Here is some info about testing the resistor using a multimeter it you have one:

DIAGNOSIS AND TESTING- BLOWER MOTOR RESISTOR WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
Both the front blower motor resistor and the optional rear heater-A/C unit blower motor resistor can be diagnosed using the procedure that follows. For circuit descriptions and diagrams, refer to Air Conditioning/Heater in Group 8W - Wiring Diagrams.
  1. Disconnect and isolate the negative battery cable.
  2. Disconnect the wire harness connector from the blower motor resistor block.
  3. Check for continuity between each of the blower motor switch input terminals of the resistor and the resistor output terminal. In each case there should be continuity. If OK, repair the wire harness circuits between the blower motor switch and the blower motor resistor block or blower motor as required. If not OK, replace the faulty blower motor resistor block.
Here is the information on replacing the resistor:

REMOVAL
  1. Disconnect and isolate the battery negative cable.
  2. From the passenger foot well area, remove the two hex screws used to secure the blower motor resistor.
  3. Unplug the front blower motor resistor from the wire harness connector.
  4. Remove the front blower motor resistor from the HVAC unit.
Here is an exploded view of the HVAC box. The resistor is #63 in the picture and the actual part may appear slightly different:

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If any issues such as no voltage at blower connector or damaged or melted connector at the resistor then let me know.

Oct 19, 2008 | 2002 Dodge Durango

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