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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
i was on the way to the track and just normal driving my tach stoped working. well kinda it works untill about 2 grand and then just faceplants to 0. to me it seems like a ground is loose or something but i dont know were it is. the funny thing is when i put the 6a msd box on with the wiring harness from msd it worked fine but i had to take that off so now i drive around with a nonfuctional tach and thats also what i get to race on. i would just by a new autometer one but id rather just fix the problem before it shorts out and causes a potential fire. do you guys have any ideas