2003 Town & Country heat issue

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Thread: 2003 Town & Country heat issue

  1. #1
    Join Date
    Nov 2007
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    2003 Town & Country heat issue

    Hi, gang. First time here. The forum looks pretty encouraging, as I'm sure there's a lot of good information out there.

    I have a 2003 T & C, and it runs like a champ. The only thing is that the heat doesn't work unless we're driving, and it usually is only on the highway at that. I read another thread here about it possibly being the water pump, but we've had this problem for a couple of weeks, and there have been no other signs that it might be a water pump (ie, no knocking or other odd engine sounds). The temp gauge works like normal, the fan blower works fine, but the heat just isn't there.

    Is this going to be a matter of replacing the thermostat, or is this likely going to be something major? Any guidance is appreciated.


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  3. #2
    Join Date
    Mar 2006
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    If the temp gauge reads normal, you have either a kinked/obstructed hose or a plugged heater core.

    Does the van have rear heat? If so does it provide heat at all operating speeds?

    I've seen bad water pumps move enough coolant to keep an engine from overheating. On those the impellers were rusted away.

  4. #3
    Join Date
    Dec 2004

    Quote Originally Posted by Cozmo View Post
    ...the fan blower works fine, but the heat just isn't there...
    Could also be a blend door problem. Is air coming out where it's supposed to be coming out? or do you just hear the fan, so you know it's working?
    Centreville, VA
    Currently driving:
    2005 Dodge Grand Caravan SXT, 129K mi.
    Former owner of:
    1988 Dodge Caravan SE, 2.5L I4 (1988-1995, 99K mi); 1995 Plymouth Grand Voyager SE "Rallye", 3.3L (1995-2004, 169K mi); 2003 Grand Caravan Sport, 3.8L, (2004-2008, 106K mi), 2008 Nissan Quest, (2008-2010, 25K mi)

    Other vehicles:
    2008 Lexus RX400h (Dark Gray), 112K mi; 2005 Hyundai Elantra GT (Blue), 89K mi

  5. #4
    Join Date
    Jun 2004
    Thanked 85 Times in 58 Posts


    See if you are getting any codes , do the keydance turn the ignition key on(don't engage starter)/off/on/off/ then on and look in the odometer display for the codes and if any post here , if there are none then it will say "done" . If its a thermostat problem it should throw a code if it is taking too long to warm up , otherwise maybe you have a blend door issue . also check the coolant level , when cold it should be midpoint between min and max on the coolant overflow bottle. Should be a nice orange color too...
    2014 Dodge Grand Caravan AVP
    Deep Cherry Red
    33000 miles
    2008 Isuzu Ascender
    Midnight Blue Metallic
    93300 miles

  6. #5
    Join Date
    Mar 2007
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    had the same problem with our 2003 found the cooling system mostly dry. I added antifreeze then found a small leak in the radiator. the heat worked properly as long as there was coolant in the system

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