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Old May 8, 2017 | 04:17 AM
  #1  
tacbrobell's Avatar
tacbrobell
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2008 f 150

have a problem guys. 2008 f 150. runs and idles fine. when put into reverse, it lurches. same thing in first gear. shifts fine, but once going highway speed and let off gas, it will start to lurch again. it's almost like the 4x4 is trying to engage. I've read up on it, going to switch spark plugs out today. anyone had this problem before?
 
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Old May 8, 2017 | 04:05 PM
  #2  
Bluegrass 7's Avatar
Bluegrass 7
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Spark plugs won't do anything like that.
Re-seat the crank sensor as a start.
Seem it only is affected when the motor rocks in its mounts.
If the crank sensor is intermittent it stops the whole show.
Has to be something motion sensitive to act like that.,
Good luck..
 
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