Well I posted this in the coolant area but I'm thinking I should've put it here. My car was overheating as I got home from work today. I open the hood to see coolant sizzling on the intake, on the drivers side. It's coming right from the alternator bracket area. I opened the radiator and found the coolant was empty, so it all leaked out on my 20 min. ride home from work. So I replace the coolant, clean off the intake, and check to make sure all the bolts in the affected area are tight, which they were. Start her up, and coolant instantly starts pouring out of the alternator bracket area. It doesn't shoot out, but it does come out quickly. I'd say the radiator would be empty after 5 minutes of the engine running.

So my question is, do I need a new intake manifold or just a gasket? I looked all over for a hole/crack on the intake but couldn't find one. I'd hate to just replace the gasket when the intake is broken.

Engine is LG4, exactly 100k, all stock including intake. Thermostat was replaced a few months ago but the leak is not coming from the waterneck so I'm sure it's not related. This just started today, it's never leaked out coolant that fast. Usually I have to add maybe a quart if that, every few months or so.

Any help is much appreciated. Also what's a good replacement for the lg4 intake?

Thanks!!!!

 

We'll let the other post do the job.