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What is the difference between a "shift solenoid," and a "speed sensor?"

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What is the difference between a "shift solenoid," and a "speed sensor?"

  #1  
Old 05-19-2012, 12:48 PM
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Join Date: May 2012
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Smile What is the difference between a "shift solenoid," and a "speed sensor?"

My Ford: 2001 E-350, Econoline, V10

After a long trip, my van's automatic transmission is shifting rough, revving up before the first shift point.

I ran a diagnostic, and it came back with two codes: one that said check fluid level. I did, and it was ok. The other code said "speed sensor."

When I called the Ford Parts Department at the local dealership, they had a "shift solenoid," but no speed sensor.

A shift solenoid sells for $412. A speen sensor sells (at the local NAPA) for $42.

Anyone have any idea which part I might need?

Thanks
 
  #2  
Old 05-19-2012, 06:54 PM
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Join Date: Jun 2010
Posts: 9,256
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The best I can try to answer is, the speed sensor provides the info for when to shift , the shift solenoid causes the shift to take place.
The solenoid may be part of a solenoid assy that contains the solenoids.
 
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