I was driving my 86 down the highway this evening and my LOW COOLANT LAMP came on. Then as suddenly as it came on it goes out. It would come on under heavy accelleration it would come on. I pulled over, popped the hood and made a visual inspection. Overflow tank has coolant, Temp guage reads 178 degrees. Oil pressure at 39lbs. Did a sniff test and I don't smell anything. nothing on the ground. Where is the sending unit located and how can I test it.:willy_nilly:

Probably just a sensor, if you have all fluid and the temp is good that would be it!

The sensor on the right side radiator tank. It just snaps in.

The sensor on the right side radiator tank. It just snaps in.

Very easy, I had to do this last year and for me it has to be really easy and it was!:yay: