There's a coolant line attached to the bottom of the '87 2.5L intake manifold that looks like a snap-on connector.
Can it be removed without breaking it & reused? If so, how? Thanks!

Likely no. The fitting will break, etc... Expect need a new one.
See my Cave, Heater

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Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave (It's also at the top and bottom of every forum page...)

Thanks Ogre. I'll cut the hose off at the OE crimp instead.

You can release the hose by carefully pinch the plastic part but putting back often the oring will not seal. Oring is part of fitting in intake...

cutting hose? Likely won't help and just make more work...
Just Messing w/ that fitting can cause leaks etc. and often needs replacing.

Get another fitting before you use that engine. If engine is pulled of any reason then replace the fitting when engine is out.
Is a Giant pain doing that job in the car.

Ok - I'll add that to the to-do list. The engine is replacing a "rattler" in an '86.