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C7 Blower fan motor

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Old Aug 16, 2024 | 11:44 PM
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Default C7 Blower fan motor

So I read forums and everything. Unplugged the blower motor. Replaced the blower motor. Whenever I play with the cable or tap/hit the plastic cover with my foot or object it turns on. I can’t tell if it’s short. Could the plug in be messed up? How should I fix it? If anyone had another solution besides unplugging and replacing please let me know.
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Old Aug 17, 2024 | 07:02 AM
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You need to inspect the plug itself. It may be burnt or damaged, repair as necessary.
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Old Aug 17, 2024 | 09:01 AM
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There was another thread on this. One member fixed by adjusting the pins in the harness. Loose connection.
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Old Aug 17, 2024 | 10:13 AM
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I had HVAC issues with my blend door and my blower motor not working. Dealer replaced blower motor and blend door. New Blower motor lasted 3 weeks and quit. Took it back to dealer. They replaced the blower motor again. They said it was a bad blower they installed. 1 week later it quit again. I suggested to them to check the blower plug. That was the problem all along. They installed the new plug and it's been great ever since.
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Old Aug 17, 2024 | 10:39 AM
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Originally Posted by twisted_vette
So I read forums and everything. Unplugged the blower motor. Replaced the blower motor. Whenever I play with the cable or tap/hit the plastic cover with my foot or object it turns on. I can’t tell if it’s short. Could the plug in be messed up? How should I fix it? If anyone had another solution besides unplugging and replacing please let me know.

Is the replacement blower motor module OEM or aftermarket ??...there are just 3 wires...power, ground, and a speed control (PWM) wire...if wiring looks good it may be a bad "NEW" module....moving this to Tech.




Last edited by C5 Diag; Aug 17, 2024 at 10:45 AM.
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Old Aug 17, 2024 | 02:00 PM
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Did you put dielectric grease on the contacts?
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Old Aug 18, 2024 | 09:30 AM
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Til I got my motor replaced I would get it working by tapping on the bottom of the passenger glove compartment. Used to tell the wife to kick it when she was with me. Worked everytime for a while. LOL. The problem like many state is the connection (fretting).
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Old Aug 18, 2024 | 08:59 PM
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Tsb for replacing the connector. GM sells a pigtail with new crimp connectors

PM me and I will take a picture of the bag with a part number and send it to you

Dave
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Old Aug 19, 2024 | 09:27 AM
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Originally Posted by Dcasole
Tsb for replacing the connector. GM sells a pigtail with new crimp connectors

PM me and I will take a picture of the bag with a part number and send it to you

Dave
Why not post the picture here so everyone who visits this thread can see?
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Old Aug 19, 2024 | 10:06 AM
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Originally Posted by Macleod52
Why not post the picture here so everyone who visits this thread can see?
Because I was not anywhere near the part or my car when I posted this last night.....
But for those that desire to know and if my memory serves me correctly.....
The part number is GM 19368864

Dave


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Old Aug 19, 2024 | 07:16 PM
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Originally Posted by Dcasole
Because I was not anywhere near the part or my car when I posted this last night.....
But for those that desire to know and if my memory serves me correctly.....
The part number is GM 19368864

Dave

My apologies for no answer I’m doing some military work. I have photos of the connector and the fan itself. We’ve decided to do the pig tail! It comes in this week. I’ll post progress and what to do. The connector definitely had play so that’s why we decided to go through this route. Can is cammed and lowered so we think the vibration could’ve caused some damage or just fell into the same problem as everyone else.




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