2002 Ford Explorer problem with speedometer

2002 FORD EXPLORER
191,100 MILES • V8 • 4WD • AUTOMATIC
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CUTEP
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  • 1 POST
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?
Jan 25, 2010 at 8:08 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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
Jan 25, 2010 at 10:31 PM
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