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Old 04-06-2010, 05:17 PM   #1 (permalink)
chefmike
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blower motor ground

I read this old thread and have the identical problem:

my blower motor will work perfectly on all speeds if I jumper from the ground connector to the frame. The exisiting black wire shows a limited potential for continuity.

The thread discusses this, but never confirms that the fix was to run a new ground. I PM'd Gracie, but have not heard back.

Can anyone else chime in?

My intent is to just run a length of 12 guage wire from the blower fan ground connecter to the frame. (Green Machine posted a wiring diagram in the old thread above).

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Old 04-06-2010, 06:08 PM   #2 (permalink)
Green Machine
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I don't know if I stated it in that thread but I did run an extra ground off the blower motor housing to the body or frame or something... Was a quick and easy fix , did I mention free too? lol!

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Last edited by Green Machine; 04-06-2010 at 06:08 PM.
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Old 04-06-2010, 08:15 PM   #3 (permalink)
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Found that brake controller needed a better ground than to firewall .Ran a dedicated grnd directly to battery. Same for windshield wiper motor/controller . Have had no problems for a number of years by so doing. Just mention this as another example of poor grounding in that area .
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Old 04-06-2010, 09:08 PM   #4 (permalink)
bk95td
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There should be a connector behind the glove box that has only a black and a red wire. This is the ground and hot for the a/c and other things. If a blower motor is used while drawing excess current[starting to go bad] it will melt the connector inside. It's a way too light connector for the amp load. I did away with it and butte spliced the wires together.
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Old 04-06-2010, 09:25 PM   #5 (permalink)
Green Machine
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Quote:
Originally Posted by bk95td View Post
There should be a connector behind the glove box that has only a black and a red wire. This is the ground and hot for the a/c and other things. If a blower motor is used while drawing excess current[starting to go bad] it will melt the connector inside. It's a way too light connector for the amp load. I did away with it and butte spliced the wires together.
I did that after I replaced my blower motor as well lol .
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Old 04-06-2010, 11:36 PM   #6 (permalink)
chefmike
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Thanks guys...

I will look for that red/black connector.

And I am cleaning lots of grounds these days!
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