have a 2001 Mazda 626 4 cyl DOHC engine. 1 1/2 weeks ago we saw steam coming from under the hood. When I shut the engine off and opened the hood, water was spewing out from around the oxygen sensor in the exhaust manifold.

Everything LOOKS okay. But to pinpoint, any ideas as to what the problem can be? I'm sure it's not the water pump and the hose behind the manifold doesn't seem to have any cracks or holes.

Suggestions, please?

 

Well, I found out a day or two after I posted this is was a cracked hose...