2004 F150 5.4 light acceleration (edge) problem
12-27-2011, 08:03 PM
#13
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Mine seem to do the same thing. Brought it to the deal under warranty. They said there was a little bit of play in the drive shaft(u joints) they gave me a new driveshaft and illuminated the problem. .02
12-28-2011, 02:14 PM
#15
Tow Performance Program (87+ octane fuel)
This setting not only provides improved transmission shifting, but will also
modify the ignition timing and fuel injection strategies to improve the
performance of your vehicle. This level is designed to run with 87 octane
fuel, although you may realize additional benefits by running 89 octane (or
better) fuel. You should see an improvement in fuel economy as well as
added horsepower and torque. When towing a heavy load such as a boat or
This setting not only provides improved transmission shifting, but will also
modify the ignition timing and fuel injection strategies to improve the
performance of your vehicle. This level is designed to run with 87 octane
fuel, although you may realize additional benefits by running 89 octane (or
better) fuel. You should see an improvement in fuel economy as well as
added horsepower and torque. When towing a heavy load such as a boat or
camper, we recommend you using this setting.
That's from the PDF Edge has on their site, but I swear my instruction booklet actually says to use 89 on level 2. I'm guessing they updated the manual?