Quick Way To Check For a Bad Blower Motor

5 years ago
11

In this video I'll show you a quick and easy way to check for a bad blower motor. The blower motor featured in this video has a bad spot on the motor. By simply tapping on the side of the blower motor it caused it to work again. (Its not fixed though. The symptom will happen again. Blower motor replacement is needed.) The reason is that before the blower motor was tapped on the brushes inside the motor where sitting on a bad spot of the motor. When the motor is tapped on this causes the motor to move just enough for the brushes to come into contact with a better part of the motor, causing it to work again.

Note: This is only one way to diagnose a faulty blower motor and it only works, mostly, when the motor isn't working due to a bad spot on the motor. There are many other ways that a blower motor can become inoperative and the method used in the video is not suited to diagnose all of the ways a blower motor can become inoperative. The method used in the video is not a sure way to make a correct diagnosis. It can help you to better understand what is happening with a faulty blower but it is not always 100% accurate. A proper diagnosis should be performed for better diagnostic accuracy and of course the method used in the video would not constitute a "proper diagnosis". Use this method at your own risk.

Side note: You don't have to beat the mess out of the blower motor in order to perform this test. A light tap will do.

Here is a link to a video showing how to replace the blower motor on this truck. https://youtu.be/4D4X5T8Hq78

Here is a link to a video showing a "shade tree" method to diagnose a faulty fuel pump due to a bad spot on the motor. https://youtu.be/DRwsNZ0DC6U

DISCLAIMER
Barbour's Auto Help is not responsible for any damage or personal injury incurred in the process of performing any auto repairs done by you the viewer. Automotive repair is extremely dangerous. Repair your vehicle at your own risk. It is the viewers responsibility to verify all information and procedures as outlined in YOUR REPAIR MANUAL AND OWNERS MANUAL FOR YOUR VEHICLE. Owning and using a repair manual suited for your vehicle is essential for correctly and safely performing ANY repair to your vehicle. Always wear safety glasses and heed all instructions for use applicable to any piece of equipment you may use. Due to circumstances out of the control of Barbours Auto Help, Barbours Auto Help makes no guaranty that by the use of the information given in this video a quality repair or proper diagnosis will be made. Barbour'sAutoHelp makes no guaranty that the information provided is totally complete, syncronized and accurate. Verify everything using an appropriate repair manual. Follow the repair manual over this videos content. You can do it. Do it right and do it safely.

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