98 vortec. where all can it leak coolant?

[SAATR]

If you have any doubts, replace the intake gaskets. If they fail internally, you may not have enough time to shut the engine down before major damage occurs. For what the parts cost versus the engine, it's a good choice, and will eliminate one leak source from the equation.

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[Constantine]

Ok ya'll.
I'm working 12 hour night shifts and I work off Thursday night then I'll have 3 days to try and figure it out.

This is how I'm going to attack it:
Pull plugs and inspect.
Use the coolant system pressuring tool dealio.
Compression test.

If I'm still not getting results of a leak, then I'll pull the intake manifold.
My local oreillyauto has the felpro mst90008 gaskets in stock and manifold bolts if I need them.
Will replace the heater core to manifold hose with a barbed fitting and hose while I'm at it.
There's alot of dried up gunk right below the threads on it.

 

[Constantine]

Well the coolant system pressuring tool was the ticket.
Found the leak running down behind the alternator.
Pulled the alternator and it's the intake gaskets and/or intake corrosion + heater core hose quick connect leaking.
Thanks for the help fellas.