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1997-2006 Expedition & Navigator 1997 - 2002 and 2003 - 2006 Ford Expedition and Lincoln Navigator Discussion

Blinking Overdrive Light in '99 Expedition

 
  #16  
Old 07-17-2018, 12:15 PM
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There is no overflow for the transmission. The reason for the leak is that the torque converter is getting REALLY hot. That softens the torque converter hub seal and it leaks. Quite often when the seal cools it will hold again.

The P1728 code means the converter is slipping. If that is the only code most likely you need to replace the converter. One thing you can check is to see if the converter is discolored from heat. Remove the cover on the front of the bellhousing and look at the front face of the torque converter. If it's discolored, like bluing on a gun, the torque converter clutch is toast and the converter needs to be replaced.
 
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Old 07-17-2018, 08:07 PM
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Originally Posted by exp97 View Post
Did you have this problem solved, I'm experiencing it in my truck
Trans code error either a bad sensor or bad trans!
 
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Old 07-17-2018, 09:15 PM
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Originally Posted by #1fordguy View Post
Trans code error either a bad sensor or bad trans!
Not necessarily.
 
 
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