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I have a 2003 jeep liberty and the heat only blows on speed 2 and 4 would i need to replace the whole blower motor or just the resistor and if it is just the resistor,is it located in the glove box?

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Spray it with electric spray contac cleaner right in where the switch is work the switch after you spray it.check resistor for low amps if high replace it.

Posted on Feb 21, 2009

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2 Answers

Where is the blower motor relay located on a 2010 jeep liberty


on all speeds, is it dead sounding or only no air flow???
wow no symptoms posted only this goose chase deal.

use the scan tool yet? see all DTC errors.
2008 cars can report most cause of lost power etc,
not scanning, invites expensive gue$$ing.!!

HVAC 101: (
gdoes the motor have 12vdc on high? at connector to it>?
on all speed's (now that is a KEY FACT there)

  1. defeat air bag first or die , fiddling these parts.
  2. do the HVAC calibration yet? per FSM.
  3. scan it yet ,if not you will guess wrong. I promise,
  4. i have to stop my online page ,is missing the wiring sections.

calibrate damper:
Use this procedure to ensure that the A/C-heater control is correctly calibrated to the blend door actuator. If the calibration is not correct, the heating-A/C system may experience a condition where full heating or cooling capabilities cannot be obtained.

Many steps can not be done with out a real jeep scan system.
sorry, cant.

Apr 16, 2013 | 2010 Jeep Liberty

1 Answer

My 2002 jeep liberty 3.7L the heater stop blowing it was working on the number 4 setting now it dont work at all. no heat


this sounds like the heater motor resistor has gone bad and needs replacing.this controls the amount of voltage that goes to the blower motor to give you the different speeds.if it was the blower motor it wouldn`t have worked on #4 setting before stopping.this us located in the air box as it uses the air flow from the motor to help keep it from getting too hot,usually in the area of the motor and has about 5wires connected to it.

Oct 19, 2011 | 2002 Jeep Liberty

1 Answer

2002 jeep liberty , heater blower resistor i know was going bad , cause it only worked on setting 4 , but now its not working at all , its not blowing out period . so could it still be the heater blower...


maybe check the heater fan motor by hooking it direct to power and if it blows full power then it has to be the resistor or maybe the switch for the speed control is burned up.

Jan 25, 2011 | 2002 Jeep Liberty

1 Answer

Heater will not put out much heat on first 3 setting turn up to fourth and it does get alot of heat whats wrong with 1-2-and3


sounds like the blower motor resistor/blower motor module is bad. They use a series of resistors to drop voltage to the blower motor to make it spin at different speens. High speed bypasses the resistors and allows full voltage to the blower motor.

Heres an article I did with some tips.

http://www.fixya.com/cars/r6571076-blower_motor_not_work

Dec 02, 2010 | 2004 Jeep Liberty

1 Answer

I own a 2005 jeep liberty. the ac, heater fan only works on selector switch setting # 4. nay sugesstions on why fan does not work on settings 1, 2 or 3.


The lower speeds are accomplished by running the power supply through various resistors that drop the voltage which makes the blower turn at different speeds. The lowest setting uses all the resistors to drop the voltage as much as possible to turn the blower as slow as possible. High speed uses no resistors so the blower gets full power and turns as fast as possible.

Since speed 1 and speed 2 use the speed 3 resistor to drop there voltage and speed three is not working as well my guess is the speed three resistor is burnt out in the device referred to as the blower motor resistor or blower motor speed control module. This is located near the blower motor and is held in place with 2 screws. There will be several wires and possibly two connectors plugged into it.

These are really common failures in many vehicles. The parts are usually available at your local auto parts store and they are typically not that expensive.

Hope that helped.

Oct 07, 2010 | 2005 Jeep Liberty

2 Answers

2002 Jeep Liberty - Air conditioner not blowing. Replaced blower relay switch - Still not blowing. When car is in motion, you can feel cold air at the vent, but the blower is not blowing the air into the...


OK. So the blower notor isn't operating. Do you have power to the blower motor? The resistor is new from what I got. If you don't have power to the blower motor, then check the speed control switch and fuses. If you have power at the blower motor, replace the blower motor

Jun 16, 2010 | 2002 Jeep Liberty

1 Answer

My Jeep 2003 Sport, heater only works on #2 &


You heater only works on speeds #2 & 4 because the blower motor resistor pack is defective. Replace it.

Jan 02, 2010 | 2003 Jeep Liberty

3 Answers

The blower for the ac/heat only works on the highest setting. The 1,2,&3 settings don't work.


Sounds like the blower motor resister is bad, it regulates the speeds of the blower motor, it should be located somewear around the blower motor, 2 screws hold it in the heater box and it has a electrical plug to it.

Sep 30, 2009 | 2002 Jeep Liberty

2 Answers

My Jeep Liberty 2003 fan blower will not work on the low settings...1 and 2. I am thinking its either the resistor on the blower motor, or the switch. Any help here would be greatly appreciated.


sounds like your usual resistor problem,should be under the passenger side dash in the heater box,might even be behind the glovebox,when u pull it out it should be obvious if its the problem

Sep 13, 2009 | 2003 Jeep Liberty

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