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2002 Ford Explorer problem with speedometer

Tiny
CUTEP
  • MEMBER
  • 2002 FORD EXPLORER
  • V8
  • 4WD
  • AUTOMATIC
  • 191,100 MILES
I have bad bearing in the back driver side and replaced them and now when I drive the truck the speedometer moves faster than the truck is actrually going. Truck moves about 5 mph and speedometer is at 40 mph. What could the problem be?
Monday, January 25th, 2010 AT 8:08 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,300 POSTS
That is a good one. The vehicle speed sensor determines the speed. Were you working anywhere near the trans or transfer case? Also, try something. Pull the fuse for the ABS to see if the speedo works correctly. You may have damaged one which could be causing a problem. Keep in mind, with the fuse out, the brakes will work fine, but the ABS will not. Also, the ABS light will come on but should shut off when you replace the fuse.

Let me know what you find.

Joe
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Monday, January 25th, 2010 AT 10:31 PM

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