Question about 2002 Jeep Liberty

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My heat in my 2002jeep liberty blows hot when first cuts on after min or two starts blowing cold how can I fix

Posted by james huckelba on

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Richard Brooks

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This is a possible recall of the heating and air vent door inside HVAC SYSTEM..some of the doors will get stuck,open half way ,or break..Also it could be the actuator that opens the vent door..Sometimes the control switch can also be at fault...Be sure and check dealer for recalls on vent doors....The doors take a day to repair pending door location...This is a chrysler jeep problem..I am a Chrysler/Jeep Tech...

Posted on Feb 20, 2015

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miket756

Michael Thorpe

  • 2702 Answers

SOURCE: heating problem driver side blowing hot air passanger side blcold

its likley to be the pipe has been riped off or fell off or its the flaps on the heater box its self not opening,,,have a look under the dash to fine any pipes that are off the heater box,,
anyhow, who cears if the passanger gets cold,,, its the driver who needs to keep warm!!!!
unless its the other half? or worse still its the mother in law!!!! ho ho ho!

Posted on Nov 05, 2009

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Anonymous

  • 714 Answers

SOURCE: My 2005 Jeep Liberty will not blow heat through

heater valve if you have 1 ,or temp control actuator which is under the dash and takes hours to replace!

Posted on Jan 30, 2010

SOURCE: heater

the motor for the heat door is bad no switching from cold to hot

Posted on Feb 01, 2010

magoly auto

  • 303 Answers

SOURCE: AC will blow cold air for a few minutes then start

you have moisture in the system this causes your expancion valve to freeze up an stop working, thats why it works for sort time and when it de-freezes stars working again. you need to do a EVAC & RECHARGE with a good AC service equipment, specially attention to pull vacumm por at least 20minutes so you get all moisture out of the system.
Good luck

Posted on Jun 05, 2011

Testimonial: "Thank you Magoly, its working Thank you very much."

Adam

  • 207 Answers

SOURCE: my 2003 jeep liberty's air conditioner blows hot

Probably, to be sure make sure the compressor is coming on. With the engine running turn on the ac and watch the rpms, they should drop for a second if the compressor is coming on. If so you just need to recharge, the refrigerant is R-134a, which you can get from your local parts store along with the kit needed to charge it. The kit will come with detailed instructions and is a pretty easy job.

Posted on Jun 10, 2011

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Sounds like low flow issue. Flush and clean system, PROPERLY! Buy a flush kit, drain system, blow compressed air through, fill with cleaner/water mix, run for 30 min with heat on, drain system, blow out with compressed air, fill with water, run for 30 min, drain, blow out with compressed air, fill with 60% coolant mix.

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2002 Jeep Liberty - when I turn on the heat, it keeps blowing cold. The blend door was replaced a year ago when the air conditioner kept blowing out hot air. Is this the same thing all over again??


Could be but, it could also be the thermostat. Do you have a temp gauge in the car or just a dummy light that flashes. If you have a gauge, where does it sit when the car is warmed up? Doe's it ever go over to the hot side but not quite over heat? If yest then I'd be replacing that, because it's stuck, and it's a whole lot cheaper than having them go back under your dash. If the dealer fixed it before and it hasn't been a year, you may still be under warranty for the repair also.

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2005 jeep liberty blows cold air through the heater.


could be the thermostat if it was just stating to go bad,could also be a vacume problem not letting the door for the ac/heat close all the way for a few min.and if its really cold out like below 35,then its going to take longer to warm up,my jeep takes like around 20 min at idle to warm up.yours could be a case of over cooling in cold weather too ie(electric fans on before it warms up)that would be the thermostatic sensor.

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Sounds like defrost door on heater box is not work You need to get under dash and check controls on the box. Good luck

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it could be many things, maybe compressor heats up and shuts down, or cooling fans are cooling condensor or expansion valve is bad, a good tech will be able to diagnose this,

Mar 24, 2010 | 2003 Jeep Liberty

1 Answer

Heater


the motor for the heat door is bad no switching from cold to hot

Jan 31, 2010 | 2002 Jeep Liberty

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Need more information. The most important thing would be to watch the heater water valve move when someone turns the control from hot to cold, back and forth?
Heater valve controls tend to be operated by vacuum, and switched by a heater computer. Lots of possibilities. But first tell us what you see move when operated? Valve is usually in engine compartment, in the heater hose. Follow the hot one.

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