Tried to find a small water/coolant leak in right rear of car. Checked the " weep hole" of water pump, hoses etc. Is there a dye I can put into the overflow and check with a " glow light" like when they put dye in the oil to test for leaks . Someone suggested food coloring, but I think it would get diluted to much to detect the source. Any ideas guys ???

https://www.amazon.com/Inte...nt-Dye/dp/B002M4E0VC

Can be the thermostat housing, weep hole, or even the hose on the right side coming off the coolant pipes... It's usually the highest point you see moisture present.

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Red 1988 GT under restoration!

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Another item to used is a coolant system pressure tester. It will allow you to pressurize the system and look for leak. Helped me find a bad headgasket. You can borrow one from auto parts stores.