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Wacky Speedometer issue

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Old May 7, 2010 | 04:44 PM
  #1  
Pwy_FireCapt's Avatar
Pwy_FireCapt
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Wacky Speedometer issue

I'm new to the board...

I have a 2003 F250 7.3l diesel 4wd...

2 days ago my speedometer started reading 70-80mph while doing 35-40. Then, when i slowed to a stop it pegged to 100, and as I began to drive, it went back to the 70-80 range.
Today when I turned it on, it was at 0mph and would not respond until I got to about 35mph, then repeated the first symptoms.
No ABS light came on, odometer is working, and tach is working.
Should I start with the VSS?

Thanks in advance for any help you can give...

Pwy_FireCapt
 
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Old May 7, 2010 | 06:10 PM
  #2  
Furian's Avatar
Furian
You Keep What You Kill
Joined: Dec 2006
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From: Huntersville, NC
Yeap! If that's not the problem, then you may have issues with the PCM.

Welcome to FTE!
 
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