Why does my truck hate me?????
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Just an off-hand guess:
If I recall, there are three "speed sensors" on our trucks that will set a code. The VSS is the most common failure, and it's the one that the speedometer is based upon.
The other two are shaft speed sensors that monitor things internal to the transmission. They're located on the top of the 4R100. The code you're seeing is likely indicating a failure of the rear one of those. Hopefully, the connector to it is only full of mud or water.
As I said, it's only a guess, and I did no in-depth research to arrive at this.
Pop
If I recall, there are three "speed sensors" on our trucks that will set a code. The VSS is the most common failure, and it's the one that the speedometer is based upon.
The other two are shaft speed sensors that monitor things internal to the transmission. They're located on the top of the 4R100. The code you're seeing is likely indicating a failure of the rear one of those. Hopefully, the connector to it is only full of mud or water.
As I said, it's only a guess, and I did no in-depth research to arrive at this.
Pop
Maybe Mark K. will elaborate. I do know that AE can tell what percentage of lock-up the TC is in and of course it gets that info from the PCM. That percentage would be determined by the ratio between the speed of the input shaft versus the speed of the output shaft. Thinking out loud now. Hope I'm making sense.
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Ryan Kovacs
2017 - 2022 Super Duty
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Oct 24, 2016 09:16 AM
