Mechanics

HEY ALL ITS BEEN A WHILE. MY QUESTION IS. I HAVE A AND THE ABS LIGHT IS ON. WILL A BAD SPEED SENSOR CAUSE MY 4 WHEEL DRIVE NOT TO ENGAGE THE SHIFT MOTOR?

2000 Ford Excursion

I think my wheel speed sensor is bad and my absence light is on.
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M8trix01
January 13, 2012.



Yes, it will. It compares the speed of the axle vs. Speed of the car to know when to use the ABS. If the speed sensor is not communicating it will come on.

ProAutoTech
Jan 13, 2012.
Ok so the 4 wheel drive won't engage the transfer case if I have a bad wheel sensor?

Tiny
M8trix01
Jan 14, 2012.
That's not what I heard. I thought the question was will the ABS light come on if the sensor is bad. However, if it's push button 4wd I could see that causing a problem as well. But, typically the most common 4wd not engaging problems I have fixed are due to a bad vacuum line to the transfer case. Is your speed sensor known to be bad?

ProAutoTech
Jan 14, 2012.
I have code for right sensor fault. I replaced the shift motor last season and it has warn repacement hubs. Now when I put the selector in four wheel it doesn't go. Into four wheel drive.

Tiny
M8trix01
Jan 14, 2012.
Lets start by replacing the wheel speed sensor, then clear the codes and get back to me. Thanks!

ProAutoTech
Jan 14, 2012.