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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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#1
Fri, May 1st, 2009, 02:08 PM
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Anything CAN go bad, but once the Gryphon has programmed the PCM, it's just a monitor. There's nothing it can do to the truck at all, just sitting there on the dash, except to make it look purty.
Have you gone to diagnostics to see if there are any codes? Since you have a 2006, is the truck still under warranty? - Jack 
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#2
Fri, May 1st, 2009, 02:24 PM
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Quote:
Haven't tried running codes I think my factory warrenty is up june 09 but just in case i have extended till 100k miles.
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2006 F-150 FX4 Dark Shadow Grey 
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#3
Fri, May 1st, 2009, 02:26 PM
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The more n more i think about it- Im leading to PCM....
Cuz for one its random and two its like the PCM is getting confused what to tell the sensors or injectors to do and starts messing up and then clears itself right away. The only thing that controls the electronics is the PCM... 
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2006 F-150 FX4 Dark Shadow Grey
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#4
Fri, May 1st, 2009, 03:11 PM
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Willing to bet on "fuel pump"
Hard to start. Takes 2 or 3 times. Not imediately locking in priming pressure.(Check valve)also I think located in pump. Just maybe the pcm? Dies or rough idle at intersections? Not maintaining correct idle pressure. Could be a regulator also. As far as injectors? Who knows.
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SENIOR MODERATOR--PTLA God doesn't have a Facebook but he's my friend. God doesn't have a twitter, but I follow him.
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