3.4 low coolant light/ sensor

[alanwagen]

Subject 3.4 Chevy Impala

Where and how hard would it be to replace my low coolant sensor?

My coolant is not low but sometimes the light will flash for a few moments when I start my car and then go out.

Many thanks for your help

[geoffinbc]

Thoes things get stickey sometimes. THe sensor is on the resivoir bottle. Tak it out and wash out all the crap.

[bszopi]

I had this problem once and couldn't figure out for the life of me what it was. I ended up pulling the resevior tank and ran some cleaner through it (Simple Green I think). You wouldn't believe the crap that came out of that thing!!! Anyway, flushed it several times until I could actually tell the tank was semi-transperent again, put it back in and the longer had the problem. So that's the first thing I would check because its quick, easy and free.

[alanwagen]

could not find

I should of mentioned that I have a 2000 Impala. I looked at my recovery tank and did not notice any wires on it.

Are you guys sure I have a coolant sensor on it?

Thanks again

[geoffinbc]

Sorry on a 2000 it is a module on the right hand side of the radiator