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| 2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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#2
Fri, March 13th, 2009, 01:35 PM
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Well the rpm surge is from the torque converter which I am sure you know...so I am no help
 But its definitely strange that it will not stay locked/and keeps jumping back and forth. Not that I think it has anything to do with it, but have you adjusted the custom options on the TC unlock/lock?Just wondering...I know you said in OD only, but have you turned it off and seen if it will do it in just 3rd gear? Maybe someone that knows a lot more than me will punch in...Good Luck man 
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Flowmaster 40, PHP Gryphon, AS 2" kit
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