It turned out to be the water pipe, where it connects to the tube that runs under the manifold to the pump. I got another pipe from the junkyard, put some permatex on the oring, and never heard from it again.
EDIT: In this post, I was using left and right in the sense that I was stnding in front of the van, with the hood up looking at the motor...so right would be drivers, left =passengers side for purposes of this post,.
But now, Ive got a leak in the coolant system again..3 days ago, the heat started blowing cold, and the coolant level was low. We filled it up, and .it was blowing steam from the left side, near the pump area. It was dark when it was doing this, so yesterday in the daylight I tried to get a good look at where the steam was coming from, I drive the car until it was hot, and then idled it while looking, then tried turning it off. No sign of any steam.
Then, today I happened to look under the van and there was a good puddle, popped the hood and the RIGHT side was wet, it was dribbling from the right side of the water pipe, near where I replaced that pipe 2 years ago.
Soooo..... I thinking the water pump may be going up? I know that when the coolant is full, the heat works fine, no overheating so it seems to be pumping alright. Maybe that pipe on the right needs a new oring like it did 2 years ago? Only once was it blowing from the left, now its leaking from the right like it did two years ago.
Heres one question I have: I know that the tube that runs under the manifold fits into the water pump and there is an oring there as well. Can you remove that tube from the right side, or do you have to pull the intake manifold? I thought maybe the oring on the water pump side might be bad.
My plan is to try and replace the orings on the right and left, but Im not sure how to get to the oring on the left where it goes into the pump.
Any suggestions would be greatly appreciated!
Edited by 2stroke1971, March 8, 2010 at 07:03 am.