Question about 2002 Jeep Liberty

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REPLACED ANTI-FREEZE AND THERMOSTAT BUT NOT GETTING HOT AIR. WHAT'S MY NEXT STEP?

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  • Jeep Master
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Make sure you have all the air bled out of the system. Check heater hoses as they go into the firewall for heat. If hot, may be the blend door.

Please see my tip at http://www.fixya.com/cars/r6235876-no_heat_fan_blowing_cold_air . These are generic instructions. If you get stuck or need specific instructions for your car, please get back to me with model, year and engine info.

Posted on Oct 16, 2010

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  • Master
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Undo the highest hot hose clip (poss the top heater hose)to vent any air in system.common problem after refilling .......do it when really hot for best effect.

Posted on Oct 16, 2010

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If it is filled up to capacity (also check that the upper radiator hose is full of fluid by squeezing), then the next thing to check is the two heater hoses that enter the firewall for the heater core. If they aren't getting hot at normal operating temperature, the heater core is plugged up and will have to be flushed or replaced.

If the heater core hoses are hot, then a blend door problem exists for shuttling hot air from the heater core to the interior of the vehicle.

Good luck on this repair.

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Feel the hoses going to heater core, one should be hot and the other warm. If one is cold or both are then heater core is clogged. Make sure heater control valve works and as vacuum to it and or the cable is free.

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a/c relay has to do with a/c compressor. Do you have a/c? If so it's not that. You could have a bad thermostat. Have you replaced one yet? That would cause the over heating. The rough idel I'm not sure what to tell you there. Sorry.

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