mpg
Postmaster
Joined: Oct 2008
Posts: 3,924
Likes: 6
From: Richmond BC
yea same here.. stepping up from 33"s to 35"s also took the motor out of its power band/trans shift strategy..
even having the dealer reset the PCM for the bigger tires (it helped a little) but it certainly didnt correct teh lost power/MPG...
even having the dealer reset the PCM for the bigger tires (it helped a little) but it certainly didnt correct teh lost power/MPG...
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FX4Range R
1999 - 2016 Super Duty
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May 16, 2013 04:02 PM
