Water is leaking from the left side of engine. I put antifreeze in it but I think a freeze plug blew out or something

If there was no antifreeze , and the water in the block froze and expanded the not only did the freeze plugs blew, but you may have cracked your block. Freeze ports are cast in the engine block when made and the plugs for the holes are usually made of zinc alloy and pressed into the block. When the water does not have the proper mix of antifreeze, it expands and forces out the plugs to prevent block cracking. If it is real cold for extended periods of time it may not be enought room for the water to expand and it cracks the block. water on the ground and sometimes the plug that looks like a over sized bottlecap are evidence. If you attemp to start you car you will permantly damage your engine..

Yes, that is a possibility. I have a 4-liter V-6 in my 1993 Ford and it had two freeze plugs that had rusted and were leaking. It was easy enough to replace them because they were on the side of the block but I learned there are two freeze plugs hidden under the transmission bell housing. It they are leaking, antifreeze would be dripping off the back of the engine.

Freeze plugs should not cause oil leaks as they are a safety device for the water jacket.

what you do is go to a radiator specialist shop and have a coolant pressure test done
most probably a cracked top plastic tank
as for the leak at the back , it could be a rusty welsh plug but the pressure test will also show that

Yes, actually they are casting plugs that hold the supports for the inner sand core that allow casting a water channel in the block. Steel plugs are hammered into these holes to seal up the block, and in the old days when people used alcohol antifreeze that often boiled off and left pure water in the block, and it froze. The expansion of freezing water pushed thes steel plugs out if you were lucky and did not split the block.

There is one of these plugs on the back of the engine, especially if the engine is a cast iron block. You may be able to put in some antifreeze that has more antileak compound than normal antifreeze. Check with a parts supply store. Also see http://wiki.answers.com/Q/How_do_you_fix_an_antifreeze_leak

be aware that some sealants clog the radiator at times.

there are freeze plugs on back of block,between tranny and block. there are also ones on each side of block underneath exaust manifold.

It most likely is a freeze out plug, unless there is another leak causing the anti-freeze to spray back on the hot exhaust.

Check out your freeze plugs. They are thin metal cups that press fit into the side of the block. Use a mirror and a light to inspect while the engine is running.

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

May require vehicle on hoist or at least on ramps, and a flashlight/troublelight to see exactly where its coming from. Could be just a frost plug, but until you can pinpoint the spot, don't drive it, or run it for that matter & cost yourself more money.

Freeze plugs are usually on the side of engine block. If the freeze plugs leaking, it is a simple job to replace them without removing the engine. You should get under the truck to locate the source of leaking antifreeze.