oil coolant light wont go off??
 

Ok on my way to 95r2 89TII ground zero's house my warning light went on and when i slowed down it went off. So i got there and checked it out and the resivior was over the full line and full of brown nasty shit! So we drained it and put some new coolant into the radiator and it ran for awhile and didnt go anything so i was like cool. we went to leave and that damn light came on like 2 miles from his house. we turned back and let it sit for the night, when i went to leave like 5 hrs later i didnt get out of the driveway before it went off. So i need everyones help, what is the damn deal with my car? We think that it is the radiator gone bad. please help!!!!!!!

i change the coolant on my 87 na

the light was on for a while some two mile
very anoying but it turns off

make sure there is water in the reserve
try turning it on for 5 min, turn it off let it cool off and add more water
even if just a little is missing that sensor goes off