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2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 engine
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no codes, rough idle, no power

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Old Nov 26, 2013 | 09:09 PM
  #1  
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Merculous
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From: White City, Sk ,Canada
no codes, rough idle, no power

2004 f150, 5.4L has 250000kms on clock, has rough idle, no engine light and no codes, no power, when you hammer on it at highway speeds it barely accelerates. It also feels like it has a miss or something and surges at highway speeds. For some reason the cruise also stopped working. When its warm and comes to a idle the tach will drop to zero when ideling and the motor shakes pretty good and sounds like its going to stall out. Rev it up and it has response and revs up fine.

Any help would be greatfull.
 
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Old Nov 27, 2013 | 10:22 PM
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I had same kinds of issues with a 2004 f-150 with the 4.6L. Turned out to be a bad throttle body.
 
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Old Nov 27, 2013 | 10:27 PM
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The cruise control not working is the symptom that clinches it. Luckily, I was able to find one at salvage.
 
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