Question about 2002 Jeep Liberty

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2002 Jeep Liberty overheated

My nephew's 2002 Jeep Liberty overheated on a rolling hilly road with the A/C on. It chimed. There are no leaks on the ground. The radio went out at the same time. He turned off the car for 15 mins. When he turned on the car, the fan did not come on so he immediately turned it off. Is there a delay for that to come on? He lifted and checked the wires. 20 mins later he drove it with the heater on and the temp was fine. Radio worked then too. We're wondering if maybe its just a loose wire? He took it to the dealer and they want to do all kinds of things to it. $2500! Replace the radiator, replace the thermostat and temperature sensor, replace the head gasket, send the head to a shop to check if it is warped and potentially replace the head,and replace the spark plugs (which were already replaced recently). Could an engine head really get warped after such a short time of overheating? Could the spark plugs go bad that easily? Can you diagnose that a radiator is clogged without doing a flow check? He said the coolant looked a normal color. I am wondering if the dealer he went to is being over zealous. Everything was handwritten (not printed out like other dealers) and he didn't give him a copy of the estimate. This doesn't feel right. Is he being taken advantage of?

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It is possible for the heads to warp at such a short time, not to mention it the light dinged them it means that the temp was therefore it was slowly getting hotter, if the dealership is going to take the heads off to check them, the headgasket would definately be recommended. There is a delay for the fan to come on. Anytime that you have an overheating problem thermostat, and water pump would be recommended. They probably said to replace the coolant temp sensor since the fan didn't come on immediately, although it doesn't always come on immediately. Doing all these things yourself is not hard on this vehicle. It is fairly easy, the hardest thing is getting it back in correct timing. I would check the spark plugs to see if they need replacing if you just replaced them and they don't have a lot of carbon build up then don't. If you have any questions about this vehicle send me an e-mail, I have become VERY familiar with this car.


Posted on Aug 07, 2010

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The vehicle should not be overheating. The water pump may be on its last legs. REgarding the radio, check the fuse. J.

Posted on Jul 11, 2010


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