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Auto A/C front blower shuts off on High setting (all other speed good)
I got the electrical diagram book and am starting the "why is the wire burning hot" troubleshooting. Direction wise, I thought the power came from the blower motor speed control, but it goes through it instead to ground..pin 2 (YE-BU) is the one melting. So maybe have a bad connection there...- Space Monkey
- Post #16
- Forum: 3rd Gen - 2007 - 2017
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Auto A/C front blower shuts off on High setting (all other speed good)
Here is an update: I replaced both the blower motor and the speed controller module with motorcraft parts and it worked for 2 weeks. Pulled the connector and it is burned again on the yellow-blue wire. All of the parts were brand new and I soldered/heat shrunk the new pigtail in. I failed to...- Space Monkey
- Post #12
- Forum: 3rd Gen - 2007 - 2017
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Auto A/C front blower shuts off on High setting (all other speed good)
The heat sink is in the ducting and there is also a tube from the blower that blows past the heat sink.. With the A/C on, it should have plenty of cool air.- Space Monkey
- Post #9
- Forum: 3rd Gen - 2007 - 2017
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Auto A/C front blower shuts off on High setting (all other speed good)
The control module mounts on the side of the HVAC case, pretty close to where the blower motor is mounted. The DORMAN module has a good sized aluminum heat sink just like the OEM. I did solder and heat shrink the new pig tail in and I hit the spades with de-ox-it before connecting. It seems...- Space Monkey
- Post #7
- Forum: 3rd Gen - 2007 - 2017
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Auto A/C front blower shuts off on High setting (all other speed good)
I installed a new blower motor (also bought one for my 07 expy). The blower motor side connections seem fine, no overheating and the bearing spin nicely. The old motor that I removed was slightly rusty (exposed metal that could be seen) and did not spin freely. Pretty sure it is not the motor...- Space Monkey
- Post #4
- Forum: 3rd Gen - 2007 - 2017
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Auto A/C front blower shuts off on High setting (all other speed good)
This was the motor control module that was removed.- Space Monkey
- Post #2
- Forum: 3rd Gen - 2007 - 2017
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Auto A/C front blower shuts off on High setting (all other speed good)
2012 Expy Limited. I have replaced both the blower motor and the fan control module, including new harness pigtail for the fan control module. Originally, the motor control module melted on pin 2 (yellow with green stripe, next to black with white stripe), module 9L34-19E624. I replaced the...- Space Monkey
- Thread
- Replies: 19
- Forum: 3rd Gen - 2007 - 2017
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