Common coolant leak location?

[wylee]

The warranty has obviously expired. Me and GM may end up with a pretty short relationship.

Is there a common location for a small coolant leak with these cars? I've seen the T-stat housing mentioned several times but usually it's a catastrophic failure rather than a seeping leak. I can smell a leak, but I don't see it yet.

Of course stuff starts breaking when the weather gets cold and there's snow on the ground. ugghhhh!

[petrified.rabbit]

dye and a black light?


i have heard of seeping t stat housings before they crack, the heater hoses and their connections, rad leaks from stones etc, even proclaimed head gaskets.

[wylee]

dye and a black light?

That sounds like a good idea. I've never heard of dye being used on anything other than AC, but I think that is what I'll do.

[milesvinson]

I know this is an old post but it may help someone else. You don't need dye just a blacklight. Look for coolant leaks along where the fan housing meets the radiator core. Mine rubbed a hole in the radiator there.Zoom in on this picture and you'll see what I'm talking about. It took me several months to locate the leak. Eventually it got large enough for me to find. I never thought about using a black light until then. I tried the blacklight and it showed all of the antifreeze on the radiator.