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Forum namePerformance/Engine
Topic subjectCoolant Leak..
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=119963
119963, Coolant Leak..
Posted by RS97, Feb-16-07 02:13 PM
Well subject says it all.. I've got a coolant leak and can't pinpoint the location. About a month ago I replaced my thermostat cause it was busted, and while I was at it, I replaced my upper radiator hose cause it had seen it's better days. Now, for the past few days I'm getting a coolant leak somewhere around the radiator itself. It leaks on to the top of the passenger side fan, and a little bit on the fan blade itself. I checked the upper radiator hose and it's definitely not coming from there. Its not gushing or anything, just enough so I can smell it, and occasionally see the steam through the cracks of the hood. Does this sound like a cracked radiator? I can't find any other signs of leakage other than around that fan. I think tomorrow I'll take that fan off and see if I can see any better, but do you have any ideas or other thoughts?

Thanks,
Bryan.
119964, RE: Coolant Leak..
Posted by mcgyvr, Feb-17-07 03:36 AM
check the thermostat housing gasket, it could be leaking there and running down the upper hose/dripping on the fan.

you also might have cracked the housing (it happens)
119965, RE: Coolant Leak..
Posted by RS97, Feb-17-07 05:03 AM
Thanks for the reply! I checked it out, and everything around the housing and upper hose is dry. I may try to take some pics so you can see how the coolant is pooling up on the fan. I can't really find a trail of it, it just kinda piles up in certain spots.
119966, RE: Coolant Leak..
Posted by ThePerfectShift, Feb-17-07 05:53 AM
try revving up the engine with the throttle body while looking around the radiator, it will be more likely to gush out at higher rpms. that's how i discovered my heater hose was busted. Good luck.
119967, RE: Coolant Leak..
Posted by Chamuko, Feb-17-07 06:01 AM
Agree. Some leaks dont show till high rpms/boost due to the pressure.

This is more so for hoses. I had a hard time finding a tiny leak, Turned out to be the hose above the exhaust manifold had a crack the size of a pen tip.
119968, RE: Coolant Leak..
Posted by C L U T C H, Feb-20-07 12:10 AM
if the lower hose isn't tight enough, the leak runs all the way to fan. I had tha problem