When I really get on the throttle, you can actually watch the coolant temp DROP on the guage!

WTH??

Now, I know that this is NOT normal.. Honda tells me that either the sensor or sending unit could be on its' way out.


Has this happened to anyone before? Any thoughts or suggestions?

 

find the sensor, it should be a single wire connector and ground it to a good ground-(the wire) and watch your gauge-make sure it moves to help eliminate wiring/gauge problems. heck-the sensor shouldn't be that expensive, good luck

 

Roger that!

-So, have you actually tried this before?

I am concerned about something shorting out on me..

Since I am not familiar with the way that this particular sensor works, as far as the way it gets power and sends signals, I figured I would just clarify...

What exactly is the needle on the guage supposed to do when you ground this wire?

Thanks ERICH!

 

When you ground the wire, the needle is supposed to climb up towards overheating. BE CAREFUL. Before the needle gets to the top, disconnect the wire from ground. If you let the gauge peg high, you can burn it out.

You can check the sender itself by putting it in a pot of water with a thermometer. As you heat the water, measure the resistance with an ohm-meter. A shop manual would say what the resistance should be at several different temperatures.

 

Has anyone thought of this....being that it is so cold outside...the rush of much more freezing cold air will cause the gauge to read a cooler temp., because it is actually cooling down.

Or, maybe your thermostat is what's on the way out, and it's partially stuck open ?