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Heater Cores and Blower Fans
Jeep Grand Cherokee Limited
Car Heaters

Why would a 2002 Jeep Grand Cherokee Limited only blow cold air out of the passenger side vents?


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Wiki User
2015-07-17 17:37:12
2015-07-17 17:37:12
$1300 will fix the problem

I had the same problem with my '03 Limited, but then the driver's side quit working as well. After further Internet investigations, I learned that it is usually the heater core, located deep under the dash. To do the work yourself would take a lot of mechanical skill, and a lot of time. I took mine to the dealership, and they gave me an estimate of $1300. The steering column and the entire dash have to be removed. I have been driving to work in Colorado all winter without a heater. Just be thankful that it still works on the driver's side.

It must be a Jeep thing because I had the same problem with my 2001 Jeep Grand Cherokee. My boyfriend picked up a heater core for about 200 dollars and put it in himself. He's no mechanic so I don't think its that hard if your willing to put a little effort into it. Plus you save about 1100 dollars!

Related Questions

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Passenger side under the dash board. That big black box which routes all of the air to the vents has to be removed.

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The Vents Are operated by vaccum.. I found a cracked vacuum line on the inner fender under the hood alondside the battery that was cracked. the vacuum line runs from the firewalll to a reserve canister located under the passenger headlight. as soon as the leak was plugged the vents were working again.

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Either you need to pen your vents or there is some vent obstruction.

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I have the same problem with my 97 jeep. I'm thinking that maybe a hose going to the vents has come loose, because I can hear the fan motor running and I'm getting a small amount of air out the vents in the dashboard area.


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