Front Blower Quit

[patrickmurphy]

Got a 2010 King Ranch Expedition and love it, blows my Suburban away! But just recently my front blower quit working and its cold in Ohio right now!....any ideas?

 

[toms89]

I am not familiar with the 3rd generation expy systems but a common item that fails is the blower motor resistor. It may be worth looking at.

 

[patrickmurphy]

I've got the automatic climate control which seems to be working, the settings respond when changed but the front blower never starts. I'm under the impression that this model doesn't have a resistor per-se but a speed control module. I'll have to look and see what it has.

Any info would be greatly appreciated!

 

[1ATony]

I would check the power to the blower motor with a test light. If it does have power to it, more than likely the blower motor has gone bad.

 

[patrickmurphy]

Kng Ranch Blower failed AGAIN!!!!

I am now on my third replacement blower motor in my 2010 King Ranch Expedition. Dealer is replacing the motor, it works for several weeks then dies, any ideas?

 

[hwy73]

I've got the automatic climate control which seems to be working, the settings respond when changed but the front blower never starts. I'm under the impression that this model doesn't have a resistor per-se but a speed control module. I'll have to look and see what it has.

I know on the Crown Vics/Grand Marquis/Marauders the blower speed control module has been troublesome, due to bad solder joints on the circuit board. If you can find where the module is mounted on the heater box, try tapping it with the butt end of a screwdriver to see if the blower starts. The module controls the ground side of the blower power. The positive side of the blower connector can show juice but still not work. Connecting both leads of the blower to the battery direct will rule out a bad blower if it runs. Hold on though, she'll run full bore hooked up this way. Even replacement modules have failed, the ultimate cure is re-soldering the two large power pins on the circuit board.

 

[patrickmurphy]

The techs at the dealer say they actually test the motor on the bench as being bad. I'm having a hard time believing that there could be 3 motors bad in the same vehicle in less than a year. I'll check out the solder joints and see if there is an issue. Any idea where the module is located?

 

[hwy73]

It is in the heater /AC plenum much the same way the blower resistor assembly is. However it is much larger. The circuit board, along with a large heat sink is inside, with just the connector showing on the outside. On the panther cars it is accessible from under the hood.

 

[patrickmurphy]

The dealer replaced the blower again and this time also replaced the speed control circuit board that has the resistors on it. Everything is working perfectly including the climate control. Thinking about waiting to see if it fails again before doing anything, maybe the third time will be a charm.