5.0L (1979-1995) Mustang Technical 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.

speedometer issue

Old 02-25-2012, 11:00 AM
  #1  
javila2468
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Default speedometer issue

I just finished installing a new speed gear inside my transmission and now my speedometer is jumping everywhere. It doesn't stay stable. Any ideas what it could be?
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Old 02-25-2012, 11:33 AM
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mustangGT86_05
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You may not have the cable fully sat inside the gear, im guessing it goes up to an appropriate speed then drops? They can be a pain
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Old 02-26-2012, 01:57 AM
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Tony71502
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Yeah, sounds like the gears are not fully engaged and skipping teeth.
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Old 02-26-2012, 10:39 AM
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nitrous_bob
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did it work before the swap?
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Old 02-26-2012, 11:35 AM
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MrPack91
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Maybe you're having the same problem I am, In town it flicks all over the place at a rapid amount but on the freeway it sits at 140mph
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