1999 Tahoe Rear A/C Blower

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January 20th, 2023, 7:56 AM

#21

Cusser

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Quote:

Originally Posted by rosyod96

So got a new motor installed and it’s blowing the fuse again…next suggestion? Read somewhere mabe it could be the resistor?

1. Test the power terminal on the new motor for short to its case with ohmmeter, while out of the vehicle.

2. With harness to motor disconnected and engine and AC switched on, put in new fuse and see if that blows.

Last edited by Cusser; January 20th, 2023 at 8:21 AM.

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January 20th, 2023, 8:19 AM

#22

rosyod96

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Quote:

Originally Posted by Cusser

1. Test the power terminal on the new motor for short to its case with ohmmeter, while out of the vehicle.

2. With harness to motor disconnected, put in new fuse and see if that blows.

Ok i had unplugged it for a day before I replaced the motor and fuse doesn’t blow with power to motor unplugged…

I’ll try to test the new motor today sometime…

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January 20th, 2023, 8:22 AM

#23

Cusser

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Quote:

Originally Posted by rosyod96

Ok i had unplugged it for a day before I replaced the motor and fuse doesn’t blow with power to motor unplugged…

I’ll try to test the new motor today sometime…

Edited it

1. Test the power terminal on the new motor for short to its case with ohmmeter, while out of the vehicle.

2. With harness to motor disconnected and engine and AC switched on, put in new fuse and see if that blows.

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March 9th, 2023, 8:34 AM

#24

rosyod96

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Rear A/C blower

So haven’t had time to work on this again till now. Blower motor tested good. Any clues where to start looking for a short? Or could the resistor be causing the fuse to blow? Thanks

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