'01 SC2 MT 181K - Coolant leaking from intake manifold heater hose pipe

That pipe extension coming off the intake manifold was a badly flawed design. Sooner or later almost every vehicle with that pipe has it crack or fail in another way. I sincerely doubt it is your intake manifold itself.
The quick fix you speak of is actually a sanctioned repair kit to address the problem. That's how prevalent it was. There are YouTube videos out there showing how to do it properly. Probably some other workarounds as well.

For me, step one would be getting a hold of one of these repair kits. Step two, getting the broken part off, step three installing the repair kit. I have not personally performed this repair as I have never owned a gen 3 Saturn S Series. I'm going to go look for the repair part.

It's fairly reasonable to expect to be able to repair 25-year-old plastic that has heat cycled 8,000 times. The key is taking your time and not stressing the material anymore than you have to during the repair.

 

Here's some AI stuff I found while searching.....

To repair a cracked plastic intake manifold coolant nipple on a third-generation Saturn S-Series (2000-2002 DOHC), you'll typically perform a metal replacement modification. This involves removing the intake manifold to access the cracked nipple, then cutting off the plastic piece and installing a metal repair fitting. The replacement fitting provides a durable, crack-resistant solution to the known design flaw.
Understanding the Problem

• Plastic Intake Design:
  The plastic intake manifold on the third-generation Saturn S-Series (which uses the DOHC engine) has a coolant nipple that is prone to cracking and leaking coolant.
• Symptoms:
  You may notice coolant leaks or bubbling from underneath the manifold, indicating a vacuum or coolant leak.

Repair Process

1. Access the Manifold:
   Begin by removing the air intake, air filter box, battery, and engine mount to gain access to the intake manifold.
2. Disconnect Components:
   Disconnect the power steering pump, serpentine belt, fuel rail, and various hoses and electrical connections.
3. Remove the Intake Manifold:
   Loosen and remove the nuts holding the intake manifold to the cylinder head.
4. Remove the Cracked Nipple:
   Once the manifold is off, carefully cut off the cracked plastic coolant nipple.
5. Install the Metal Repair Fitting:
   Install a replacement metal fitting. Ensure the flange of the fitting is perfectly flat to prevent leaks.
6. Reassembly:
   Reassemble the intake manifold in the reverse order of removal, ensuring all nuts and bolts are torqued to the correct specifications.

Tips for Success

• Watch a Video:
  Refer to helpful YouTube videos demonstrating the process for a visual guide.
• Ensure Proper Flatness:
  Before installation, ensure the new metal fitting's flange is perfectly flat using a file or vice to prevent leaks.
• Use Correct Tools:
  You'll need a 13mm socket to remove the manifold nuts and potentially a Dremel tool for cutting.

 

https://www.amazon.com/Dorman-902-100-Intake-Manifold-Outlet/dp/B00IWNUMAA

 

Awesome!