My 1993 Ford F150 4x4 speedometer began moving from 0-100 mph unexpectantly. I would keep going back anf forth for about 4 minutes and then it would work like it is supposed to. However, last week when I drove the truck, the speedometer did not work at all and the ABS warning light is lit on the dash. I also found out that my 4x4 does not work when I tried to get out of my driveway in the snow. Any ideas as to the problem? Thanks.
Speedometer not working on 1993 Ford F-150
by JPLaw in Powhatan, VA on December 28, 2009
ANSWER by Bret Bodas on December 28, 2009
I would focus on the ABS issue, retrieve the diagnostic codes from the ABS Control Module and perform a diagnosis. The vehicle speed signal is often provided from the ABS System, so any issue with the ABS could cause this problem. If you need a repair manual to do this, try here for a free one: http://bit.ly/autozone_repair_info or go to http://bit.ly/alldata_repair_manuals or http://bit.ly/mitchell_repair_manuals_online and get an online repair manual subscription.
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