Anyone know where the sensor is located? My Engine Coolant Low keeps coming on but there is plenty of coolant, no overheating. It comes and goes randomly. I suspect a lose sensor as a couple of month ago I had the thermostat housing and thermostat replaced.

 

It is on the underside of the overflow/fill tank, and is actuated by a magnetic float inside the tank. Sometime the float inside the tank accumulates sediment and removing the tank and giving it a good cleaning will fix the problem.

 

Another thing that happens is that the float loses bouyancy, sinks, and so indicates low fluid.

Somewhere in this forum there is a thread wherein people devised a sort of booster to help the float float. A bouyant, c-shaped thingy that fits under the float itself (c-shaped because the float is a donut that rides on a post and otherwise we couldn't get the booster under it.)

 

Thanks guys.