Engine Temp Light flashes w/ needle buried at 0

[zappbranigan]

I overfilled the coolant tank the other day while I was searching for the infamous leak that caused puddles under the driver's seat. I narrowed it down to the drain spout being clogged.

THE PROBLEM is, much like an earlier post on this issue, my wife drove the car to work at called me saying the temperature warning light was flashing and the needle was all the way to the left...at 0.

I determined that there were no leaks regarding the coolant tank or hoses. And when I had her check the coolant tank, she said it looked full.

QUESTION: Would overfilling and then not draining the overfill cause this to happen. I read about coolant level sensors on this forum, but don't really know what that is and where?

I would appreciate some advice.

Oh, and thanks to all who participate in this forum. I've pulled some serious DIY'ers off without much problem and saved mucho dinero thanks to everyone at renntech!

Joe

St. Louis

[juniinc]

coolant level sensor?

It located at the bottom of your coolant tank,,,

I believe it is normally open circuit, a faulty sensor will close the circuits together will trigger ,,,

by pass it then see what happens.

I overfilled the coolant tank the other day while I was searching for the infamous leak that caused puddles under the driver's seat. I narrowed it down to the drain spout being clogged.

THE PROBLEM is, much like an earlier post on this issue, my wife drove the car to work at called me saying the temperature warning light was flashing and the needle was all the way to the left...at 0.

I determined that there were no leaks regarding the coolant tank or hoses. And when I had her check the coolant tank, she said it looked full.

QUESTION: Would overfilling and then not draining the overfill cause this to happen. I read about coolant level sensors on this forum, but don't really know what that is and where?

I would appreciate some advice.

Oh, and thanks to all who participate in this forum. I've pulled some serious DIY'ers off without much problem and saved mucho dinero thanks to everyone at renntech!

Joe

St. Louis

Edited December 13, 2008 by juniinc

[zappbranigan]

Sorry, I'm learning. Can you give me a bit more specific suggestion on how to bypass the sensor.

The vehicle has been driven several times now with no signs that the actual temperature is high. So I'm guessing it's a faulty read somewhere.

In searching down a possible leak, I did wind up taking almost all the interior trim and disconnecting alot of wiring up the interior middle out. Beside that...the only thing I touched before this warning light began flashing was to fill the hydrolic fluid reservoir and the coolant tank. I think I overfilled both. I tried to remove some hydrolic fluid but didn't touch the coolant fluid level...which is why I'm thinking the coolant level sensor might be screwed up.

Thanks again for everyone's help!