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

OD Issues?

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Old 06-17-2009, 07:22 AM
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OD Issues?
Hey guys....Maybe someone can help me out here. When I'm cruising down the road, sometimes the tach will raise a bit, like from 1500 up to 2000 rpms. It's like it's trying to go into OD again.
 
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Old 06-17-2009, 01:25 PM
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If it went into OD the RPMs would drop, not go up. What you might be seeing is the torque converter unlocking, meaning now there is slippage from the input to the output of the TC.
 
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