Question about 2003 Jeep Liberty

5 Answers

Heat only when accelerating

Only heat when the car is accelerating. bad thermostat? or something worse. plenty of antifreeze

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  • brd79 Jan 28, 2009

    I have the same problem and the thermostat heats up and stays to the middle like always. Heard what sounded like slushing water in the dashboard if this is any relevance.

  • lburg09 Feb 04, 2009

    I am having the same problem only I am also having to put antifreeze in jeep at least once a week. There are no visible signs of a leak, and on occasion I can smell antifreeze through my exhaust. My brother seems to think I might have a cracked head and that may be where I am losing my antifreeze.

  • Anonymous May 09, 2009

    I have same problem where I am losing antifreeze and I need to add it at least once a week. My belt also recently stopped moving around the pulleys and when i start the car it just makes a really loud screamin noise as the belt wont move. Does anyone know what the problem is? I honestly think its the water pump as well but I am not sure.

  • Nick Jan 24, 2013

    The Most common fixes for this Problem are Flush/Replace heater Core or Check to make sure coolant system is FULL with no air in the rad, Water Pump may not be spinning fast enough at idle to push coolant through the heater core. If you diagnose this as a heater core problem Try to flush the cooling system with rad flush before replacing the core as this may become very expensive to install a new one.

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I had a similar problem with my 03 liberty only got hot when I accelerated and gets cold while at stop then hot again as you drive never hot while Idle. Do what I did changed out radiator $120 and fan motor sensor $12.00 located under glovebox. All works fine now. You can have your system pressure checked but why waste $60 at radiator repair facility when the radiator only cost $120 or less new from any major distributor I assuming your fan only works on 1 and 4 as well. This is according to the parts supervisor at JEEP a common related problem for all 02-06 Liberty's so there you have it two birds with one stone.(LOL) Hope this info will help get you out of the cold. Please rate me. And if you need further assistance you can always ask me.

Posted on Apr 25, 2009

  • Travis Clark
    Travis Clark Apr 25, 2009

    Your thermostat is working that's why it's not overheating antifreez levels need to be checked daily until you can fix this as the unseen leak will make it evap faster and no coolant can lead to cracked heads or head cover gasket damages(costly repairs)look around your radiator for radiator moisture spots and If you put try hard enough you should smell the fumes lightly by smelling after car is hot with hood slightly open.

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If your temperature of your vechicle flunctuate and doesnt stay in the middle then its the thermostat if the temperature stays in the middle you will need to flush out your heatercore

Posted on Jan 07, 2009

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Sounds like the water pump is starting to wear out. Or the water pump belt is loose.

Mike

Posted on Jan 07, 2009

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Clark's got it

Posted on Oct 27, 2011

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Make sure the plastic reservoir on the passenger side is full to the top. My daughter had the same problem on her liberty and it solved the heat at idle problem.

Posted on Mar 07, 2009

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Would a cooling fan failure cause antifreeze to spew out of the hose base? thought it was a faulty hose, replaced that and new antifreeze but the over heating continued even worse. I'm car challenged. ...


That could be caused by one or more of three things;
1) Bad Thermostat
2) Water pump problems
3) Yes the cooling fans not running properly and not cooling the water could do it.

I would start with the thermostat because that is the number one cause of this problem, remember you can buy a brand new thermostat and it be bad. Then check to see if the water is being pumped thru the motor by the water pump by removing the thermostat and just let the motor run and look in the radiator for circulation. Then watch when the cooling fan comes on and at what temperature because a faulty sensor could be the cause.

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Overheating


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Heater blows cold air


Maybe,but I don't believe so.One of two things can be going on,either you don't have a thermostat installed or,your heater core has gone bad.Since you say you have plenty of antifreeze,I would most likely try the themostat.

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