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.

300rpm jump at shift?

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Old 03-27-2006, 03:14 AM
  #11  
settled4automatic
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Default RE: 300rpm jump at shift?

and since nobody answered, a VSS is a Vehicle Speed Sensor, and yes the cruise control system needs this to funcion.
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Old 03-27-2006, 05:52 AM
  #12  
91hatchgt
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Default RE: 300rpm jump at shift?

My car used to do that, once I cleaned all the sensors, IAC, EGR, etc, and added a new maf and tb, it stopped. Never knew what it was, but hear it is a common occurance.
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Old 03-27-2006, 12:15 PM
  #13  
Tims 88GT
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Default RE: 300rpm jump at shift?

huh, well i never had that problem. glad its nothing to worry about if i do.
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Old 03-27-2006, 08:21 PM
  #14  
dc_mann8
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Default RE: 300rpm jump at shift?

so if that sensor is gone, will my cruise not work? becasue cruise stopped working... maybe they tie together.
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Old 03-27-2006, 08:24 PM
  #15  
91hatchgt
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Default RE: 300rpm jump at shift?

Yes it is tied together, it can cause your speedo to not register correctly, cruise control not to work, etc. It is the actual connector for the speedo cable on the tranny for a T-5 car. It has one electrical connector on it, the entire unit unscrews from the tranny, you can get one off of 50resto.com

Mine is bad, and my speedo is not working but my cruise still works..
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