Car Problem Reports

Dodge Grand Caravan Underbody Coolant Leaks From Rear Heat/AC Are Common

Dodge Grand Caravan Problem
107 Reports
Me Too

Model Years Affected: 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

Average Mileage: 111,580 mi (40,000 mi - 300,000 mi)


Coolant leaks coming from the underbody on vehicles equipped with rear heat/AC are common. The underbody hoses should be inspected as part of regular maintenance. If you drive on roads where salt is prevalent the problem is generally more severe. Some 2005 models are involved in a special service action, no government recall was issued.

  • Visitor, , 198,245 mi

    the rear heater hoses are leaking on the passenger side of my caravan i looked under an seen the problem. the two hoses that rout down from the fire wall are rusted mid way of the line. so if any one has some kind of solution that can be helpful . thanx

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  •  Rookie

    If you are experiencing coolant leaking from under the body of your caravan, you need to address this, before you lose all your coolant and your stranded and need a tow that will cost a few hundred.... There are coolant pipes that run to the back heater. These pipes will rust out. I believe I paid around $100 for the replacement pipes which are made of stainless steal. They are tricking to install, becaus ethey run from the fire wall down and under the body to the rear heater. Keep an eye out for this, it is only a matter of time....

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  • Visitor, , 203,000 mi

    Coolant leaks coming from the underbody on vehicles equipped with rear heat/AC . it is definitely coolant. how do you replace these coolant lines?

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  • Visitor, , 217,000 mi

    metal tubes rotted at bracket. Cut out bad area and extended rubber hose

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  • Visitor, , 125,000 mi

    The passenger side of my van gets extremely soaked after it rains or after running the A/C? It seems to be a more common problem the more I reaserch.

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  • Visitor, , 98,000 mi

    my car coolant is constantly loosing fluid changed hoses and clap but still loosing a little , say coolant line under right hand passenger door leaking coolant metal line corroded and wet also dripping about 1 drop per minute engine off .

    Chrysler or doge should replace these line w/ stainless steel or aluminium also the water pump inlet tube
    is also rusted and will eventuall fail .

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  •  Rookie

    For several years now I smell hot coolant and several mechanics cannot find a leak. Coolant level does go down which confirms a leak and jives with the hot coolant smell. Noticed the metal pipe connected to the lower radiator hose is very rusted and corroded. Will look more into this area for the leak.

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  •  Rookie

    pipes were pitted just before the aluminum heater hose. losing coolant once the temperature rises. waiting to be fix.

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  • Visitor, , 63,000 mi

    leaking coolant from faulty water pump, heat does not work, waiting for more trustworthy diagnosis, 605$ price break the bank

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  • Visitor, , 75,000 mi

    Rear heater pipes rusted out. Dealer replaced for $300.

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