Question about 2003 Jeep Liberty

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Heater will not heat while idleing only when accelerating. Antifreez level is fine

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This is common in many cars and does not neccassarily mean a problem. you could put in a higher temp thermostat but I do not recommend that. if this is a new problem, your cooling system could be clogging. in that case a simple flush will usually rectify the situation.

Posted on Feb 09, 2014


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Ford Taurus 2007 air condition is OK, however I get cold air when heater is turned on. Antifreez level is OK.

replace thermostat before you do anything else.. If it is stuck open there will be not heat

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2006, Pathfinder no heat at idle; after confirming no air in system issue, dealer indicated bad heater pump; after replacing heater pump, no heater at idle. heater pump is not commanded to operate - no...

make sure antifreeze is at proper level. mine was low, and heater would not work at idle. filled her up, and walaaaa, blows hot at idle. something about needing full level to circulate through heat system. made sense to me and it worked. good luck.

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My 2004 Buick Lesabre heater doesn't heat up

First you should check your antifreez level , check your water pump and thermostat also check the intake gasket , this car has intake gasket problem all the time , if it your intake gasket then I woul repair ASAP before it leades to head gasket , which is more costly . My recommandation to you is to check the fluid level and start the car and turn the heat on all the way , there are two bleeding valves on the tops if the engine from the righ and the left radiator hoses near engine side they are 7mm open them and keep adding antifreeze Untill the fluid come out clear of bubbles from the bleeders , close bleeders and check your heat .
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Dodge caravan runs cool as idle then over heats when accelerate an heater blows cold

Sounds like it's prolly just low on water have you ck the level?

Feb 19, 2011 | 2004 Dodge Caravan

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My 2003 Jeep Liberty heater is blowing cold air when idling. Warms up when you hit the accelerator. I also hear a water rolling sound upon take off after idling. Water pump? Heater Core?

Water level perhaps. When you hit the accelerator the water volume increases. Check your water level and make sure that your thermostat is opening and closing properly. Water level I'm thinking

Jan 21, 2011 | 2003 Jeep Liberty

1 Answer

I am having heater issues.... it works great driving down the road but when im idling the heat turns to cold. after giving it some gas for a few seconds the heat comes back but after about 10 seconds of...

There could be several causes for this.
The first thing I would check is to make certain that the coolant level if filled properly. Low coolant levels can contribute to this, at idle the coolant will not be circulating properly leading to not enough coolant going to the heater core.

Secondly, either your heater core or radiator may have slowly over time become corroded and is restricting the coolants moment through the engine and as your engine gains "RPM's" the coolant is circulated faster.

There is an outside all be it small chance that the water pump maybe failing also.

I would first check to make sure there is a proper amount of coolant in the reservoir, if it is full or close to it I would then check to see how the circulation of coolant differs from idle to under engine acceleration.

Nov 09, 2010 | 2001 Chevrolet Blazer

3 Answers

Why my 2006 impala heater blows cold air in park or stop light, but blow fine when accelerating.

have you checked coolant? if it is low will do this. if full then probably heater core restricted need to back flush core

Feb 18, 2010 | 2008 Chevrolet Impala

2 Answers

Heat doesn't work all the time

Check the coolant level. If it is low, the heat won't work at idle, only when accelerating. If it gets even lower, it will overheat.

Dec 18, 2009 | 2004 Dodge Intrepid

1 Answer

Truck has bad hasitation when accelerating

  Check your oil and see if there are any antifreez mixing in it. The oil would seam milky and also check the level to see if there is more then when you last checked it. Check the level of your antifreez to see if the level has gone down.
You may have a bad head gasket. Hope this helps you find the problem. Good luck

Apr 06, 2009 | 2006 Ford F 350 Super Duty

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