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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  
Old Fri, December 19th, 2008, 11:15 AM
jfuller5 jfuller5 is offline
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Default 3-4 TRANS SHIFT SLIP
Hey Guys, On this site or maybe F150 online forum ther were questions about 2-3 shift under light throttle / slippage or hesitation. This is the Ford TSB that addresses that concern on certain 07-08 F150 anf Mk LT . This software downlaod does fix that issue . Just for info only.
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Old Fri, December 19th, 2008, 11:17 AM
jfuller5 jfuller5 is offline
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Sorry here is the info. TSB 08-14-03

2007-2008 F-150/MARK LT BUILT BETWEEN 12/4/2006 TO 5/20/2008 ONLY - ENGINE RPM FLARE DURING 3-4 UPSHIFT UNDER LIGHT THROTTLE ONLY - 5.4L 3V / 4R75E ONLY
SOME 2007-2008 F-150 AND MARK LT VEHICLES BUILT BETWEEN 12/4/2006 TO 5/20/2008, EQUIPPED WITH A 5.4L 3V AND 4R75E, MAY EXHIBIT AN ENGINE RPM FLARE DURING LIGHT ACCELERATION DURING THE 3-4 UPSHIFT. THIS WOULD ONLY OCCUR AT ROAD SPEED RANGES FROM 25-30 MPH (40-48 KM/H). NO DTCS OR OTHER DRIVABILITY OR TRANSMISSION ISSUES WOULD BE PRESENT. REPROGRAM THE POWERTRAIN CONTROL MODULE (PCM) TO THE LATEST CALIBRATION USINGIDS RELEASE 54.5 AND HIGHER. THIS NEW CALIBRATION IS NOT INCLUDED IN THE VCM 2008.3 DVD. CALIBRATION FILES MAY ALSO BE OBTAINED AT WWW.MOTORCRAFT.COM.
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Old Fri, December 19th, 2008, 11:41 AM
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That update to the PCM could be applied without consulting you if you took your vehicle in for service, I bet. Another good reason to return your tune to stock before taking the truck in.

Bill, do you know if this reflash would require a rebuild of the custom tune files?

- Jack
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Old Fri, December 19th, 2008, 04:49 PM
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Quote:
Originally Posted by JackandJanet View Post
Bill, do you know if this reflash would require a rebuild of the custom tune files?

- Jack
If you were already on this flash, then you wouldn't need a rebuild. Of course if you had an earlier flash then you'd be looking at getting the files redone.
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Old Fri, December 19th, 2008, 06:26 PM
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Originally Posted by Power Hungry View Post
If you were already on this flash, then you wouldn't need a rebuild. Of course if you had an earlier flash then you'd be looking at getting the files redone.
Sorry Bill - I wasn't clear was I? (So what's new)? :o I MEANT to say that if the dealer flash was performed AFTER you'd received your custom tunes, they'd have to be rebuilt - and that's what you just confirmed.

- Jack
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Old Sun, December 21st, 2008, 08:05 AM
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So glad I seen this........now I can finally tell my dealer to get this fixed. Unfortunately I guess I will have to get Bill to rebuild my tunes!
BTW - glad the forum is up and running!
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