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Old 03-24-2012, 05:13 PM
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Angry 2003 Jeep Grand Cherokee Limited 4.7. Air is hardly blowing.

I've did the AZC self-diagnostics and its reading no codes. The blend door works fine and so does the Recirc door. The air is Cold and the Heat is hot. But it continues to hardly push any air out of the vents. The blower motor seems to be pushing really hard? I'm confused.
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Old 03-24-2012, 05:36 PM
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Re: 2003 Jeep Grand Cherokee Limited 4.7. Air is hardly blowing.

Was any repair done to the blower motor controller lately? I know of several cases where wrongly connected controller wires did the blower motor turn in the opposite direction, causing almost no flow.
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Old 03-24-2012, 05:44 PM
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Re: 2003 Jeep Grand Cherokee Limited 4.7. Air is hardly blowing.

According to the diagram on the blower it appears to be spinning in the proper direction. I just pulled the motor down to see the Recir door and it's operating properly. As far as previous repairs I am unsure I just recently purchased the vehicle. If this is the problem how I do I reverse it? I did notice some new looking wires and connectors appear to be going to a small control box (Relatively near the Blower Motor) which eventually leads to the blower motor.
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Old 03-24-2012, 05:49 PM
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Re: 2003 Jeep Grand Cherokee Limited 4.7. Air is hardly blowing.

Thank you for ensuring I double checked this! It is in-fact spinning the improper direction. Where should I go from here?!
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Old 03-24-2012, 10:03 PM
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Re: 2003 Jeep Grand Cherokee Limited 4.7. Air is hardly blowing.

The blower motor connectors are well known to give problems. They probably start getting a bad contact over time and the (low) resistance heats it up, causing it to melt.
Attached the wiring schematic for your reference, but i think that if you just swap the 2 wires from the blower motor to the controller, that you just reverse the direction.
Attached Files
File Type: pdf Blower motor controller.pdf (148.5 KB, 12 views)
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Old 03-24-2012, 10:24 PM
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Re: 2003 Jeep Grand Cherokee Limited 4.7. Air is hardly blowing.

Quote:
Originally Posted by Frango100 View Post
The blower motor connectors are well known to give problems. They probably start getting a bad contact over time and the (low) resistance heats it up, causing it to melt.
Attached the wiring schematic for your reference, but i think that if you just swap the 2 wires from the blower motor to the controller, that you just reverse the direction.
I fixed it just prior to this message! Thank you very much however!
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Old 03-24-2012, 10:32 PM
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Re: 2003 Jeep Grand Cherokee Limited 4.7. Air is hardly blowing.

Good to hear its fixed.
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