2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 engine
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Engine feels lazier after warmed up to operating temperature.

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  #1  
Old 06-05-2010 | 10:10 AM
Gearbanger 101's Avatar
Gearbanger 101
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From: Ontario, Canada
Engine feels lazier after warmed up to operating temperature.

Wondering if this is common for these trucks?

Upon first start up, my throttle is really touchy....snappy even and then becomes more dosile as it warms up.. I'm not implying that it falls on its face, but once the engine get's up to operating temperature, it's far less "responsive" that it is upon the first minute or so of cold start up.


This is my frist drive by wire engine. Is this the nature of the beast, or is it something built into Fords factory ECU tune that pulls timing/fuel at O/T?
 
  #2  
Old 06-05-2010 | 09:09 PM
screwy's Avatar
screwy
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Joined: Aug 2002
Posts: 2,116
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From: Over Yonder, MN
Sometimes I notice the same thing, lil annoying actually, both my 07 and 08 do/did it. Not sure why though.
 
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