Question about 2002 Jeep Liberty

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02 Jeep Liberty overheating when a/c is on

I direct wired the fan to see if the fan motor was good and I checked the fuse. I think it may be the relay. Where is it located and how do you replace it?

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  • Anonymous Dec 04, 2008

    Can you tell me where radiator fan ralay is located and step to test it please.



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Posted on Dec 31, 2008


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Posted on Jan 02, 2017


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I just picked up an 02 Jeep Liberty. The blower fan wasn't working so I took a look. Found the power plug to the blower unplugged. Plugged it in and still blower didn't work.

The control provides ground to the motor through the resistor, so you cannot connect the negative blower terminal to ground-it has to go to the resistor. Put it back that way and let us know if there are still issues.

Jul 24, 2017 | 2002 Jeep Liberty

1 Answer

2002 Jeep liberty overheating with a/c on then blows hot air

so the RAD is going to be good with leaks that it?
it has to hold pressure or it will get too hot,
14psi pressure,
I take my IR heat gun and check all rad tubes
top and bottom
and find, 3 are not 50 degree,drop end to end read same
those 3 are clogged, now you have 2 reasons to replace that bad rad.
something smokes, what?
it dont overheat parked, what is outdoor temp, 75f like here or 0F?
it must overheat idling, if it does moving.
how fan it not?
wont overheat A/C OFF you said.
so its marginal

ether rad tubes clogged
or fans dead,
one or both.

Mar 15, 2017 | 2002 Jeep Liberty

1 Answer

My 02 jeep liberty is overheating. I changed thermostat and flushed engine. Need advice.

If your coolant is good and the thermostat is good and your still overheating, then it is obvious that the pump isn't working. Change out the water pump.

Apr 13, 2011 | Jeep Liberty Cars & Trucks

1 Answer

I have a 2002 jeep liberty with engine light on. Took it to autozone for a diagnosis and code PO161 came up. I know its an O2 sensor, It says to check circuit fuse. Where do I find the circuit fuse and how...

P0161 is 02 heater Circuit ( Bank 2 Sensor 2 ). There is no mention of any Fuse and there should not be .Circuit refers to the two wires extending from the jeeps computer dirrectly to the 02 sensor in question which would be in this case Bank 2 sensor 2. So the computer is transmitting a signal to the 02 sensor and not receiving a sgnal back it automatically thinks the circuit is at fault, when it is not.It is not receiving any Data back from the 02 sensor because the sensor is defective and needs to be replaced. If you replace one sensor you should replace all 4 of them. If you only replace one then it will be transmitting Data back to the computer at a much faster rate than the other 3 old ones and this could cause more problems and more codes to be set by the computer.Remember to have all the codes cleared from the computer after all repairs are compleated, This will turn off the check engine light. Good Luck and have a good XMASS.

Dec 16, 2010 | 2002 Jeep Liberty

1 Answer

Cooling fan not working on 2005 jeep liberty


Dec 04, 2010 | Jeep Liberty Cars & Trucks

1 Answer

2005 Jeep Liberty Heater fan motor speed control , no low speed only med & high there a fuse for low speed?

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

Nov 27, 2010 | 2005 Jeep Liberty

1 Answer

Car overheated and antifreze was boiling and spewing over until engine cooled. 2004 jeep liberty 2wd. Thanks!

Need to know what caused the overheating, possible broken serpentine belt, thermostat, water pump, radiator, fan clutch, cooling fan motor. After motor has cooled down fill radiator with water till full, look make sure serpentine belt not broke, start engine run about 5 minutes, turn off, let sit 3 minutes, start engine look at temperture gauge is it over half way of gauge, Do you have a fan blade driven by water pump or electric fans?

Feb 10, 2010 | 2004 Jeep Liberty

2 Answers

My a/c will blow hot air and then the car will start to over heat

I'm sorry but I'm not sure what exactly the issue is. You stated the Jeep overheated, correct? Then you stated that you had previously taken the Jeep in for work on the a/c. Was this previous to the overheating? And which fan motor are you referring to? The interior vent fan motor or the cooling fan?
The cooling fan has nothing to do with the a/c. It may help increase it's efficiency but the a/c will work fine with out the cooling fan. If you are having trouble with the engine cooling fan after the work you need to return there and make them fix it. You must also remember that the coolant fan works intermittently when the temp reaches the cut-in an cut-out setting. As far as the plug on the fan itself it is a simple connector and easy to replace.

The thing that is of most concern should be, how is the vehicle running since it overheated?
The liberty has twin overhead cam aluminum heads. These are susceptible to warping caused by overheating. If you are need to constantly check and fill the radiator due to overheating you may have other issues other then the Coolant fan.

Please repost with what motor was repaired (a/c vent or cooling fan).
Also did you notice a sweet smell to the smoke when the Jeep overheated?

Sep 28, 2009 | 2003 Jeep Liberty

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