Thermostat Not Working

I just changed my thermostat on my '03 Neon, since the fan does not shut down unless its lead for long, and I noticed no fluid behind the engine side. Is this normal??

I started the car and she has warmed to operating temperature, but the fan is still ongoing. He is rarely off, but it is not clear if the electricity.

Any idear?

If your A / C is on it runs constantly. The new cars have 2-3 sensors that control the electric fan. Go to your local auto zone and ask if they would look for your make and model to see how many sensors it has, its free

The fan switch is usually at the bottom of the radiator, there will be two of her son from the fan motor. Over a period of time the switch is bad and | or the bottom of the radiator will fill with junk and switch malfunction.

It seems that you might have a radiator leak. When the engine is cold, remove the radiator cap. There should be water directly under the CAP. Otherwise it is a leak somewhere, you have more heat and the fan is doing its job.