Question about 2002 Jeep Liberty

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Why does my heater only blow out hot air while driving and then blows cold air when i slow down and stop?

For the past two years my ac/heater has not been working. When i'm driving my ac and heater will blow cold when needed and hot when needed air but as soon as i slow down or stop if i have the heater on it will blow cold air? can yo uhelp me?

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Sounds like a stuck thremostat

Posted on Dec 05, 2012

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  • 10 Answers

Did you drill by the passenger side to put mud guard? I did drill into the vacuum reservoir, and it went into default blowing cold air up the windshield check vacuum lines first.

Posted on Apr 30, 2015

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Heater blows cold air when idle

Sounds like you may have a partially plugged heater core. You could flush this out separately, from flushing radiator & engine block. Diconnect heater hoses going to your heater core and clamp off, so not to loose coolant from engine. Now hook up separate hose to one side of heater core pipe and flush out with typical garden hose. Repeat procedure on both heater core inlets. Reconnect original heater hoses and test difference. You may have to add an additional litre of antifreeze. If this don't work i suggest changing heater core. Good luck.........Ron.

Posted on Jan 03, 2009

emissionwiz
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SOURCE: Passanger side heater blows cold while driver side is hot

U will need to replace the pass side air temp control blend door acuator motor.

Posted on Feb 15, 2009

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SOURCE: 2000 Jeep Grand Cherokee Heater is not working fan

blend door actuators. If you have the AZC system (automatic zone control) used in the limited (the one with dual digital readouts) you can use the on board diagnostic to read the code. while running, press the a/c and recirc buttons at same time then turn drivers temp control one click clockwise. release a/c and recirc buttons. If you have codes that show up, write them down and google search for these codes. It will tell you exactly what is wrong.

Posted on Nov 12, 2009

  • 2 Answers

SOURCE: 1992 Jeep Wrangler heater not blowing hot air

How often has the coolant been changed? My only guess is that it hasn't and the hoses and the heater core are plugged up with goo and a flush is needed

Posted on Dec 26, 2008

  • 1 Answer

SOURCE: Heater/ac not working properly

buddyinstl is is right. the same thing happened on mine. the heat controls would not work either i tried to turn the heat down but the air would not get any cooler until i put this tube back on.

Posted on Mar 22, 2009

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Heater temp on high only bows luke warm air after driving. A/C works just fine.Plenty of cold air from it


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Why is My Car AC Blowing Hot Air? - BlueDevil Products

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Jan 27, 2016 | 2000 Chrysler 300M

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No heat blowing cold air.


Do you smell coolant inside of the vehicle. If so then chances are your heater core is going.

Nov 23, 2013 | 1997 Ford Contour

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The heater in my 1999 Land Rover Discovery Series 1 won't blow cold.


As per your problem mentioned.There are few solved help links to troubleshoot these problems.Go through the list and Click the link below:----
Air conditioner blows air but not cold air http://repairhelpcenter.blogspot.in/2012/07/air-conditioner-blows-air-but-not-cold.html

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Car overheats and Air blows hot at idle? http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html

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Heater blows cold? http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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Heat blows cold on drivers side and hot on passenger side? http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html---------- Hot air on the driver's side vents only? http://repairhelpcenter.blogspot.com/2012/01/hot-air-on-drivers-side-vents-only.html

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2005 Chrysler PT Cruiser: A/C Blows Warm? http://whoisbyme.blogspot.in/2012/06/2005-chrysler-pt-cruiser-ac-blows-warm.html

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1992 Toyota Camry: A/C Control light Flashing and A/C not Blowing Cold? http://technoanswers.blogspot.in/2012/04/1992-toyota-camry-ac-control-light.html

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No heat, blower blows only cold? http://technoanswers.blogspot.in/2012/02/no-heatblower-blows-only-cold.html

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These will help.
Thanks.

Nov 22, 2012 | Cars & Trucks

1 Answer

Heater doesnt work


To troubleshoot this types of problem,click the link below :---
Car heater blowing warm, but not hot air?http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html

--------
Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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No heat on car? http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

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Heater blows intermittently and temp gauge goes erratic?

http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html

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Heater blows cold?

http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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Heater/AC blower motor not working?

http://technoanswers.blogspot.in/2012/02/heaterac-blower-motor-not-working-on.html

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A/C, heater, defroster fan, not working? http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html Heater problem?

http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html

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This will help.Thanks.

Mar 27, 2012 | 1994 Volvo 960

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Car overheats and AC stops blowing cold, then temp guage eventually goes back down and AC starts blowing cold, after a while overheats again and AC stops blowing cold again. problem just started after a...


Your AC system is supposed to shut down if the engine is hot, as a safety device-make sure when the ac is running , the radiator fan is blowing-it may not be, caused by either a bad relay, blown fuse or a bad fan motor. Make sure your antifreeze is fully up to level, and if you haven't done it in the past 2 or 3 years, get the cooling system serviced with a new thermostat-cheap insurance, you do NOT want to overheat that aluminum engine, because if you do, it will be toast.

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2003 Ford F250, the heater does not blow hot air


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AC blows hot air when i stop at an intersection or slow down.


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When the AC compressor runs the engine slows down and runs erract


I would check your thermostat. Even replace it if its not that expensive. Hopefully its not a heater core. Good Luck..
Have a tech check it out...

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1 Answer

Ac and heater work great but go off. Then Ac blows Hot / heater cold air


I got a bigger coat to wear! while I find time to look into it further. I appreciate knowing there is more help available and will try the Primo Asist plan later. thank you louie

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