Join Date: Feb 2011
Location: Bryan/College Station, TX
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Looney fuel shifting
I have Vivian's looney fuel on my 05 f250 and am having some shifting problems. When my transmission is cold the 3-5 shift slams into 5th, jumps back out, jumps back in, back out, and back in. It does this under normal acelleration. Earlier today it did it in 5-6 shift too. Has any one else had this problem? I love the tune, more power than my srl, and im getting used to the lights witch effect but the shifting can be brutal. Vivian's customer service is top notch too, she has already revised my tune 4 times to try and work out the shift points and torque converter points but never got them right. I decided to take a break on trying to get it worked out but the way the trans is acting when cold is starting to scare me. Probably gunna get back in touch with her after Christmas. I would like to point out out my srl doesn't do this and my truck strategy is vxcf0.
2005 F250 FX4, Lariat, supercab, short bed, 6.0 powerstroke, 2.5" Daystar leveling kit, 17" Vision Warrior wheels, Edge insight cs, SCT-3015, Gearhead tunes, Diamond Eye 4" turbo back exhaust, Diamond Eye cat delete pipe, egr delete. Dream Mods: FICM tuner, MTW hybrid, ARP studs, Water meth injection.