Speedometer Problem
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New User
Joined: Nov 2006
Posts: 2
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Speedometer Problem
I have a 1999 Super Duty. The speedometer has started shutting off when driving. When this happens the ABS light will come on, the overdrive switch on the gear selector will blink, and the cruise control will shut off. Has anyone had this problem and know the fix for it.
Lead Driver
Joined: Jun 2006
Posts: 5,675
Likes: 996
From: Near Yosemite CA
Sounds like the VSS, Vehicle Speed Sensor, located on the rear diff, they get metal collecting on them and screw up the data, you can pull it off and clean it up, might want to drain the fluid and put new in while your at it.
