1999 Suburban Coolant leak in high pressure line

There are no high pressure lines in the cooling system. The whole system has equal pressure.
I'm not sure what fitting you're referring to. Can you post a picture?

I'll send a pic tomorrow if I can. High presure line might not be the roght name for it, but, Steam spews out at a pretty high rate.
It is not water coming out, it is steam. It is where a hose conects on the top of the engine block, in front, right behind where the belt that runs the power stearing water pump etc sits.

That just means the system is low on fluid and overheating. Get me a pic of the fitting and we'll see what it takes to fix it.

ok,

It was real low when I first noticed it, but, after filling up the radiator & the plastic reservoir bottle , it still steams up.


I will have pics of my car to you tomorrow.

That's what I suspected. that is a pot metal "coupler" fitting that threads into the intake manifold. They rot out frequently. You can pick one up at Chevrolet pretty cheap but you may have a problem getting the broken piece out of the manifold and repairing the threads. It can be done but you have to know what you're doing.

ty FOR YOUR HELP, i'LL LET MY MECHANIC HAVE A SHOT AT IT

Closing out question