Question about 2002 Jeep Liberty

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2003 Jeep Cherokee (Liberty) air con

Hi. My 2003 Jeep Cherokee (Liberty in the States?) has an air con problem. It doesn't blow cold. Just had it recharged with refrigerent. The heater blower works & dashboard fuse is OK. The engine speed does increase slightly when the heater control dial is moved to air con mode, as if it was under load, but no cold air. There's a big fuse thingy in the fuse box under the bonnet - can this be checked? I couldn't even get it out. I hope it isn't an expensive problem! Thanks in advance, Richard (UK)

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  • Richard Scordino May 11, 2010

    Chances are the compressor is working or it could not have been recharged. You can verify that by watching the compressor clutch and see if it's engaging. If the unit was just serviced, how is it that no one looked to see if it was working? (inside and out)

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You most likely have a problem with a part called the air temperature control blend door, it controls the air flow across the AC core or heater core, it is most likely warped or the motor that operates it is defective or in most cases both are in need of replacing. This repair requires the entire dash be removed to access the AC parts.

Posted on May 18, 2017

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Posted on Jan 02, 2017

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SOURCE: heating system blows only cold air

it maybe a blend door problem. if both hoses at the firewall for the heater are close in temperature its not likely a heater core. the actuator for the blend door is located on the bottom of the heater/ac box towards the middle of the bottom. it will be a tight fit but you can remove it without removing any part of the dash. take it off and disconnect the power. start the vehicle and manually move the door and see if the temp changes

Posted on Jan 11, 2009

Brian032472
  • 150 Answers

SOURCE: 2003 Jeep Liberty heater fan problem

It is the blower motor resistor. Look under the passanger side dash and locate the fan housing (looks round and black in color. Then locate the resistor it will be in that housing usually withtwo ten millimeter nuts or two simple screws holding it in. unplug the harness to the resistor and remove the resistor. Part store price is approx. 50.00. Note: on aftermarket (not Jeep) resistor sometimes you have to modify the housing a little to get it in. Hope this helps.

Posted on Feb 01, 2009

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SOURCE: 1995 Jeep Grand Cherokee Climate Control issues

. Open the gloves compartment (gc) . remove 2 rubber pieces that keep the gc on its place (both sides) . look to the left side. there is a connector with a few thin colored hoses. This thin hoses are there to control the operation of the blend air door. It is vacuum operated. . now follow the thinnest hose, probably it is green, all the way to the right. It connects in a sort of vacuum valve that control the position of the blend air door. make sure it is firmly attached to it. also check that hoses connector to ensure that all thin hoses are well connected. . OK! start the motor and operate the knob on the panel. It should work fine now.

Posted on Dec 16, 2009

  • 154 Answers

SOURCE: I need the fuse box index in a Jeep Cherokee 2003

go to this site it will have exactly what your looking for. a diagram and a list of what everything is.

http://www.wjjeeps.com/fuses.htm

Posted on Apr 24, 2010

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SOURCE: 2005 Jeep Liberty Heater fan motor speed control

Sounds like low speed coil in the Blower Fan resistor block has failed. The Blower Fan Resistor Block is usually located in the air ducting adjacent to the Blower Fan. The Resistor Block consists of 3 or 4 coils of special resistance wire attached to terminals which connect to the wiring that comes from the fan switch and then to the Blower Fan. The block is on the output side of the fan unit so that the airflow from the fan past the coils inside the duct assists in preventing them from overheating and burning out.
Access to the Resistor Block is from under the dash. To replace, remove the multi-pin connector and then undo the screws holding in the block. Check air duct for leaves and dirt which may have caused the coils to fail. .Replacement is the reverse procedure

Posted on Nov 27, 2010

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