Question about 1999 Dodge Grand Caravan

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Leaking antifreeze and it's not a pipe or the water pump

I noticed a large pool of antifreeze under my truck and it was leaking in a steady stream after i had let it sit for about a hour and a half.  My truck is either a 1984-1989, i can't remember, Ford F-150 with a 351.  My father thinks that it may be my freeze plug but we haven't taken the time to look at it.  what other things could it possibly be? And if it is my freeze plugs will it require me to remove my motor?thanks for your help. I have 1998 Dodge Caravan 3.0- antifreeze suddenly started pouring out from R side ( as you are standing looking under hood) Had new rubber gasket placed yesterday to a waterpipe but noticed leak is right below the pipe- forgive me, I am girl with little engine knowledge. I don't think it's the waterpump because it's on the other side. Have been trying to find engine cutaway diagram to see if I could find source of leak. Van has not overheated, yet, but as soon as water or antifreeze is added, it comes back out in steady stream. i have a 1999 grand caravan and it is smoking under hood with smell of atifreeze but hasnt over heated

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  • David Johnson
    David Johnson May 11, 2010

    Did yuo ever get your problem solved?

  • David Johnson
    David Johnson May 11, 2010

    Could be a freeze plug, but I would check all my heater and cooling hoses you should be able to easily see wher it is coming from if you have some watch from underneath when you start

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  • Dodge Master
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First, No your truck engine shouldn't need to come out if it is a frost plug. May be hard to get at but most times patience & the right tool will pop that bad one out for you if thats what it is. Do yourself a favor though, unless its the hole with a block heater in it, just by a rubber plug (similar to a thermos plug) designed to replace the metal frost plug. take your old plug with you for correct sizing. It's just a round plug with a nut in the center that you tighten once you've put it in the hole, and it expands & seals. Just remember you want it tight but not so tight that you snap the nut. Clean hole good prior to install. Will save you lots of time and aggravation. If it is your block heater, just buy another the same, they are pretty easy too.
Now to the Caravan, click on link below and scroll down to figure # 2 and click on the picture, that is your engine. Where about do you see leak from (area) Maybe below # 9?
http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528003c50f

Posted on Jan 07, 2009

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  • Master
  • 2,559 Answers

Truck: Could be a freeze plug,but more likely a heater hose or something is busted or unhooked.If it is the freeze plug,You can get to most of them without removing the motor,But they can be a pain to get the old one out and the new one in.

Van: Also sounds like a hose is off or busted.This happens quite often after messing with them to replace something else.

Posted on Jan 07, 2009

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