I had the same problem. Couldn't find what's causing it, mechanics wanted $700 to fix it but I did not believe them and I was right. The solution to that problem is so simple that is ridiculous! The problem is that you lost the stupid rubber hose that is attached to the drain coming out from the A/C in the engine chamber. That pipe is leading water under the car. When it's gone the water coming out from the drain is making seal around the drain soaking wet and it's soaking through it to the inside of the car! Simple piece of rubber hose 90 degree elbow, two clamps and done! All together $20 vs $700. How about that!
There is a special website of eclipse fans where you can find answers to any questions you have about your car. See below.
It's inside of water outlet.
No, it causes a massive coolantleak.
There are several things that can cause your 1992 Mitsubishi Eclipse to overheat. A malfunctioning water pump or a blown head gasket should be the next things that are checked.
its easy to find, things like that are usually belt dirvin so itl be on the drivers side in the engine bay with a belt and pulley attached to it... experience and tools determine how difficult it will be.
Consult the Service Manual at http://tearstone.com/eclipsefsm/00_starthere.pdf
Might Be Yr running out of oil, or water levels are low.
go to autozone.com http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c152800ad658
You can find it in the water outlet (the upper hose connector which joins the hose and the engine).
No coolant in the system, failed thermostat, failed water pump, leaky headgasket.
I believe its the windshield wiper fluid for the car. Check the rear fluid also.
The red battery warning light is an indication the charging system is not charging. The red water level warning light is an indication additional water is needed.