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.

1990 Mustang GT Speedometer

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Old 05-01-2006, 11:01 AM
  #11  
raptorkingcobra
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Default RE: 1990 Mustang GT Speedometer

Well I did as explained above, I pulled out my speedo gear within the tranny, and it was broke in half... So I am gonna order one, and hopefully that will fix this problem once and for all! Any ideas how or why this gear would have broke?

Thanks all for the help.
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Old 05-13-2006, 06:57 PM
  #12  
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Default RE: 1990 Mustang GT Speedometer

Well Well... I have replaced the speedo gear, and my mileage gauge is functioning again, but my speedo moves up and pegs out well past 140 mph even if I never go over 20 mph and never comes back down. It stays there at all times. It does come down if I am in reverse, but thats it. Is this the speedometer gauge or could it have to do with the speedo sending unit that the speedo gear mounts to? Any thoughts would be great, I am sick of spending money on this problem.

thanks
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Old 05-15-2006, 05:08 AM
  #13  
SilentBob
 
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Default RE: 1990 Mustang GT Speedometer

IF the milage is working but not the speed part then it would have to be in the speedo head.
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Old 05-15-2006, 10:01 AM
  #14  
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Default RE: 1990 Mustang GT Speedometer

Thanks, I was hoping for the $20 dollar fix, but...lol

Anyone know where I can get a speedo any cheaper than $160 from 50resto?
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