Heat problems!!

Yup...I was actually thinking no thermostat myself. Someone probably replaced it with a 160*, or even worse none at all. Let me ask you...does your car cycle in and out of cold start up often? Is it hard on gas? Do you smell a lot of raw fuel when you're getting on it? Do you find your oil smells like it's got fuel in it and find it getting dirtier fairly quickly? Do yourself a favour and change it out for no colder than a 180* if not the stock 195*....you car will thank you for it.

As for the fan control, I again have to agree with fords4life. It's not the fan speed switch located on the panel itself that's got to be changed, it's the one that's attached to the airbox. It's only held on by 2 small screws and will resemble a small coil (or series of coils, I can't remember) when removed. Try just wiggling the wire first, it may even just be a loose connection, but either way they're inexpensive to replace.