Sporatic coolant leak., happened twice. Options

[mark_426]

Well, since my water pump and radiator have been replaced, and I got my car back from Christina/QMC, I have had this wild coolant leak.

First time it happened was about 2 weeks ago. I drive the car about 3 miles, and pull the car back in the garage, and let it cool down (while running). I heard coolant dripping on the floor. I pop hood and check, and its running down and dripping off the oil pan. A friend of mine was riding along, and we looked for probably 5 min, and couldnt find a source. It looks like its in under the oil filter, but nothing appears to be leaking. Shut the car off and keep looking, still can't find anything.. and its stops.

So, the next morning, check the fluid, top it off (didn't loose much, maybe a quart), dry everything possible off, and start the car. Let it run for about 5 min, and looked/watched the whole time. Took it for a short drive, brought it back, still nothing at all wet. WTF.

So, two days after the first leak, I drive to Gettysburg (about 50 miles), watching coolant closely the whole way. Get there, check for leaks, nothing. Run an errand there, check, nothing. Drive 50 miles home, watch it the way home, and checked it in the garage. NOTHING.

Well, this is about when I started having turbo problems. Yanked the old one out, put the new one in, new gaskets where necessary, etc. Replumbed the intercooler. Its been sitting about a week. I take it up the street for a drive, about 3 miles. Pull it in the garage, no leaks, no nothing. Awesome.

Next day, about 2 weeks from the first occurance, I drive about 4 miles to pick up a friend, and come home, drop my car off, and go with some friends. I get home a few hours later, and I see a wonderful puddle of antifreeze running down the driveway. Guessing about 1/2 gal. Theres some drops still beaded up on the oil pan, and looks identical to how it was the first time it happened.

So, WTF is going on? I was thinking it was something to do with the brand new water pump, but it doesnt make sense, because I would think it would be more common. I just had the radiator hoses off and checked them, they seemed immaculate. Any suggestions?

[Defgeph]

check the hose from hell, its under the turbo.

[mark_426]

Its not over that far, its more towards the passenger side of the car.

I just checked it when I replaced the turbo too.

[Defgeph]

well get in there and try to find some green residue.

and hope to god your pump isnt leaking.

[presure2]

yea, my first guess would be somthing oil cooler related.