Question about 2002 Jeep Grand Cherokee

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Interior blower fan relay 2002 overland

Heat works fan not blowing

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  • Jeep Master
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Check heater/ac fuses first replace if bad..see if there is power to the blower motor connector if so reconnect and check ground wire for the motor.. if still no blow, take motor out and test for operation with 12 volt power supply(battery charger) replace if bad..good luck

Posted on Jan 17, 2013

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: the blower s not working on a 2002 Jeep Grand C

I had the same problem. Mine was the wire harness that connects to the blow bow. My wires were getting to hot and melting the harness. Try to wiggle the wires that connect to the blow bax while the heat is on high.

Posted on Jan 19, 2009

  • 323 Answers

SOURCE: Why won't the fan turn on for my ac or heat. I

replace the blower resistor

Posted on Jun 07, 2009

  • 1 Answer

SOURCE: 2004 Overland. No heat on pass. side.

No, the problem is the blend door, reaserch blend door failures, tons of info on the web. A quick fix it now solution is this:

remove the glove box by opening it, and if you pop it pretty hard with your hand it will clear the stops - I have done it on several jeeps and never broken anything, remove the little slow open piston on the right. On the bottom there are three tabs that act as a hinge, two up one down, you can wiggle it out without breaking it. then, on your left you will see an actuator, remove it. Now in the area to the right of that the shape of the duct kind of curves around to an edge - vertical. Take a drill with a small bit and drill a hole and push hp am the drill as if you were using it as a rotozip, about 4 inches or so then to the left about 4 inches and them back down to where the seam is. there is a metal clip in the cut section connecting the top and bottom, pop it off and remove the piece of duct. Now, reinstall the actuator and turn on the heater, and go from hot to cold. you will see a door go up and down. now rach further back and you will find a second door that is in the down position. flip it up and stick something in to hold it up - I used the plastic holder frm a mach 5 razor, as was 8 degrees out side the first time I just fliiped it up thinking it would stay. Now reinstall the piece of duct, it will pretty much stay in place and use a bit of duct tape to seal. Ther is a produce on ebay i believe called heater treater that has a more permanent fix and i believe a few photos, as you will use the same access door you just made to install it. Make sure and use a vac to clean all of the little black shavings, best to have some one hold the vac while you cut. Do not use a jig saw, it will destroy the duct work. and dont forget to reinstall the plunger on the glove box when you put it back, and yes, just smack it it pop it back in place

Posted on Dec 11, 2009

  • 30 Answers

SOURCE: 2002 Jeep Liberty - Air conditioner not blowing.

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

Posted on Jun 16, 2010

  • 593 Answers

SOURCE: FAN BLOWER (FOR A/C AND HEAT) ONLY BLOWS ON THE

Hello leebarker
The blower moter switch or the blower moter controler can cause this
problem. Remove the plug from the switch, use a 12v test light to locate
the 12v power wire in the plug. Next with a small jumper wire bring power from the 12v contact to the low and medium speed contacts on
the plug if the blower changes speed replace the switch if it still only
has high replace the controler. The blower controler is located on the
passenger side end of the heat-a/c box near the blower moter.
By the way the key must be in the on position for this test.
I hope this helps. Good luck.

Posted on Jul 10, 2010

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Interior windscreen blower fan/i aircon circuit fuse blows as soon as it replaced,possible causes and solution please! Miles Southgate


will be the motor of the fan itself faulty
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Heat and air condition fan stopped working on my 2004 Dodge Dakota, does not blow, ice is comming in and i need to be able to defrost my windshield and heat my truck


First thing to check is the fuse. There will be one under the hood and another in the interior fuse box. The 2004 model does nt have a relay. If the fuse is good, you need to check to see if the blower motor is good. The motor is located under the glove compartment area of the dash, near the firewall. Disconnect the harness from the blower motor, and using jumper wires, apply voltage directly to the blower motor contacts. If the blower motor works, then the switch is bad. If the blower still does not work then the motor is bad.

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1 Answer

Heater has stopped working


(1) possible blown fuse.
Note that fuses blow for a reason - seek out the reason, or it will blow its new fuse too.

The main fuse block is located inside the left side of the engine compartment near the battery. There is also an interior fuse panel located just above the left side kick panel.

Interior Fuse Panel
The interior fuses simply unplug from the fuse panel. Use the fuse puller tool provided with your car to remove fuses from the panel. The tool is located on the back of the interior fuse panel cover.


(2) possible blower motor dead. See maintenance manual excerpt below.

(3) possible blower motor relay faulty. Location of Blower relay:
Under hood, drivers side, front engine area,rear of headlight housing; relay mounted on drivers side of radiator shroud.


1990-92 Mazda 626 and MX-6
See Figure below

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  1. Disconnect the negative battery cable.
  2. Remove the glove box and the underdash cover.
  3. Detach the electrical connectors from the blower unit.
  4. Remove the blower unit-to-fire wall attaching bolts and remove the blower unit assembly.
  5. Remove the blower motor fan-to-motor fastener.
  6. Remove the blower motor-to-unit attaching bolts, then remove the motor.
  7. Installation is the reverse of the removal procedure.

Feb 01, 2011 | 1991 Mazda 626

1 Answer

Fan blower speed control switch not responding, compressor kicks on but no interior fan is working.


Check fuse first then A/C blower motor relay and blower motor itself to make sure you are getting power to it.

Aug 26, 2010 | 2002 Pontiac Sunfire

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No air blowing 1998 Ford E350


blower motor location is in the heater box down by the passengers feet the fan relay in out under the hood in the power fuse box check this first
check to see if the blower motor turns you can do this by removing the three screws the motor and squiral cage will come out spin it if it moves freely putit back replace the switch assembly

Mar 03, 2010 | 2002 Ford E350

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Interior climate control fan dial not working properly


no,i would say it is the blower motor resistor,if you follow the blower motor wires they plug in to the resistor.

Dec 28, 2009 | 2002 Dodge Caravan

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No Heat


check fuses or relays

Oct 02, 2009 | 2001 Ford Expedition

1 Answer

My a/c will not blow out air. You can feel the


Sounds like a blower motor not turning the blower. Could be elecrical. Check fuses that control the blower motor or blower motor relay. If these seem to be okay, locate the blower motor relay and try replacing it with a known working relay of the same style. If the A/C begins to blow, then you need a new relay. If not, you'll be looking into the blower motor or fan. Make sure your cooling fans function while your A/C is engaged.

Jul 03, 2009 | 2002 Buick LeSabre

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Heat /ac fan doesn't work properly


Check the relay for the blower. it may be locked . tap it lightly or jiggle the relay or check with a known good relay.this two circuits may be interconnected. check the light relays as well and fuses.

Nov 30, 2008 | 2002 Pontiac Grand Prix

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