2009 Jeep liberty- heater blowing only half heat

Asked by sheffero Dec 14, 2016 at 06:44 PM about the 2009 Jeep Liberty Sport 4WD

Question type: Maintenance & Repair

I have taken the Jeep into the garage many times
for this over the past 1.5 mts...I now have:  new
heater core, thermostat, water pump, temp
controller, and a new heater box! The garage has
even asked a dealer for help... And don't know what
a next step would be.  Does anyone know what
else could possibly cause the heat to blow only
Luke warm air???  Blower is working fine... Coolant
is and stays full... Lines are hot going into the fire
wall... I'm at a loss here....

1 Answer
70,895

Kelly answered 7 years ago

IS THE WATER full and no air in the system??? DID/CAN YOU BYPASS THE HEater water controll valve and check it? ***what about a vacuum leak...door stuck?****** ??? ???

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