Will I need a new tune?? - Power Hungry Performance Forum

		Power Hungry Performance Forum > Ford F-150, Expedition, Navigator, Blackwood, Mark-LT, SVT Lightning and H-D Editions (Disabled) > 1997 to 2003 F-150
Will I need a new tune??

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1997 to 2003 F-150
4.2L, 4.6L, and 5.4L equipped F-150s.

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#15

Fri, October 2nd, 2009, 04:19 PM

97xl

Owner of the green turtle

Join Date: Sep 2009

Location: London, ON

Posts: 9

Well the rear end has been installed and my speedo is waayyy off...when I know I'm going close to 60 kph(based on tach rpms) the speedo says 80ish. The trutrac has a whine to it whenever you let off the gas. My mechanic said to bring it back in a week so he can check to make sure its ok. Now to get that VSS gear.

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