Could be the Heater Blend Door actuator not working as it should! Others have had the same problem...
It operates a door that blends cold air with hot air depending on dash knob setting to give desired air temperature!
Factory Mopar Parts has them for $31 bucks: >
http://www.factorymoparparts.com/jeep/l ... e=actuatorActuator is located on right side of HVAC box, access it under dash on passenger side...
It can be changed out fairly easy as it is on the outside of the HVAC Box!!!
Item no. 9 on the image:>
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Supporting Vendor and Moderator of LOST05 Jeep Liberty CRD Limited
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V6Airbox/noVH
GM11 Bld.fan/HDClutch
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