1991 Dodge Dakota

When you say it stops, do you mean the blower stops or it no longer blows cold air?

Have you checked for power to the motor when this happens? Also, make sure the blower motor resister plug is in good condition.

What I mean is have you checked to see if the blower motor is getting power when it isn't working. There could be a short, loose connection to the motor, a bad or shorted resister.

I realize this may be confusing, but the blower motor is under the dash on the passanger side. It isn't real easy to get to. When the motor stops, I need you to check the electrical connector to see if there is power to it. You can use a test light or volt meter. If there is power and the motor refuses to run, it is most likely bad. If there is no power, then we need to check what is called a blower motor resister. It is easy to get to.

Let me know if this makes sense to you. It's hard to explain via the internet. If I was there I could show you in about 10 minutes.

Okay. You need to check t see if the power is making it to it's final point, the blower motor. It is under the dash on the passanger side (behind the glove box). You will need to remove the glove box, then you will see the HVAC vent works. The blower motor is behind there. If I remember correctly, you also need to remove the bottom of the dash. It is screwed into place.