Oh boy, another cooling question! In my case the cooling system is working fine but I've been losing very small amounts of coolant over time. Lets say every 1000k or so I have to put a little fluid in. I never noticed any leaks under the van and the van has never ever overheated. Also the van's exhaust was checked and there are no head gasket issues here.

So anyway recently we had to top off again, I didn't think much of it, but today I came out of the Post Office and there was actually a small puddle of coolant under the van.

I couldn't quite see where the source was, but, it was certainly at the bottom corner of the radiator, passenger side. I could just see some white plastic thingy sticking out an it had coolant on it, but I couldn't get in to a position to see what the source was.

My FSM only shows a diagram of the 2WD cooling system, is it set up the same way?

I'm not sure what the culprit could be here, I'm gonna go out right now and have a better look see.

I can say this, that the coolant level is still above L, and that the other errands I ran resulted in no puddles just a drip or two.

Also, we just started using heat for the 1st time in ages, in fact I have a sticky lever and I have to reach under the dash and manually move the heat control by hand, and I just did this last week. Before that I never ever saw a puddle under the van, just the infrequent topping off every 1000k give or take.

Any help would be awesome, I really depend on this van and it has been good to me and I have been good to it.

Thanks!

mark