Coolant leak, I think

[Poindextrous]

2011 STi, this past summer went stage 2: DP, SF intake, inlet, TGV deletes and Crawford AOS v2 (w/ a protune). Have had zero issues until now:

Coolant leak on the side of the AOS, can't find a source

There's a nice little collection of coolant puddling behind the AOS (wtf??).

Sooo... Besides refilling coolant, what should I do next? Any suggestions?? I'm not overheating... Cars running fine. Help

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[Poindextrous]

So it is coming from the AOS...

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[CoupedUpSubie]

AOS's don't connect to the collant system. You do have lines going to your turbo, I'd look at those.

 

[Poindextrous]

The Crawford connects to the reservoir tank: the last pic on the page

http://forums.nasioc.com/forums/showthread.php?t=2582462

 

[CoupedUpSubie]

The Crawford connects to the reservoir tank: the last pic on the page

http://forums.nasioc.com/forums/showthread.php?t=2582462

Well, first thing I would do is get the car up to temp and see how high the coolant is in the overflow tank(not 100% sure on the different wrxs). Then check the line from the tank to the AOS.

 

[RyanR]

Coolant flows down with gravity. If you can't see it from above, look at the area from below. Pics on the net won't help you.

 

[Poindextrous]

Well... The simplest explanation is usually the right one. A clamp was loose on the AOS.