Question about 1999 Jeep Cherokee

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99 jeep cherokee blower motor wont work where do I start?

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  • Samuel Charles Spriggs May 11, 2010

    First, does it work on any speed? If it works only on the highest speed, the blower motor resistor is bad. If it doesnt' work at all, first I would check to see that you have 12 volts on the motor wiring harness connector when the fan is switched to high. If you get 12 volts upon this test, the blower motor is faulty. Sometimes taking the motor apart and cleaning the armature & brushes will solve the problem -- otherwise, it should be replaced. Let me know if you do the above and don't get 12 volts at the motor, we can go to next step. Charlie

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Under the dash near the blower you should be able to locate the resister block. it's mounted on the duct work by two or three screws and there are a couple wires going to it. it's near the fan itself. that is likely the culprit tho check the fuses too.

robert

Posted on Sep 05, 2009

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How do i change blower motor resistor on 99 jeep grand cherokee


Welcome to FIxYa.com



Blower Motor Resistor and Controller Replacement

Image Blower Motor Resistor Or Controller/Power Module Remove/Install

REMOVAL

1. Disconnect and isolate the batten' negative cable.

2. Depress locking tab and unplug the wire harness connector from the blower motor

resistor or controller (power module).

3. Depress locking tab and unplug the resistor or controller connector from the blower

motor.

4. Remove the 2 screws that secure the blower motor resistor or controller to the

heater-AC housing.

5. Remove the blower motor resistor or controller from the heater AC housing.

INSTALLATION

1. Install the blower motor resistor or controller to the heater AC housing. The

housing is indexed to allow (controller power module) mounting in only one

position. Tighten the mounting screws to 2.2 Nm(20 in. Lbs.).

2. Plug in the wire harness connector to the blower motor resistor or controller.

3. Plug in the connector from the blower motor resistor or controller to the blower

motor.

4. Connect the batten' negative cable.

leedavidian_45.jpg



Thank you for using FixYa.com

Regards, Lee Davidian

Nov 22, 2010 | 1999 Jeep Grand Cherokee

1 Answer

95 jeep Cherokee heater wont work but rear window defrost still works need help please


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