Join Date: Aug 2010
Location: Blairsden, Ca.
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I had a problem similiar to yours. I had the hard shifting, along with my transmission couldn't figure out what gear it needed to be in. So, I took it to a friend of mine that specializes in E40D's and he told me that the tranny was in a limp mode to try to save itself and that was why I was experiencing the unusaual hard shifting, along with the tranny not being able to stay in one gear. The tranny was having to much slip on the clutches, etc, so the tranny was trying to save itself by increasing the line pressure. So, I had my tranny fully built with more clutches, billet parts, better tc, and a far better tranny cooler,etcetera and my problem has never come back. But, all the fancy parts werent necessary, just a good rebuild and new tc would have sufficed, but I have some high horsepower goals. Hope this helps.
1997 Cali' truck 4:10's, CAI, dual 8 inch stacks, Dptuner, boost annihilator,built E40D by Jim Galatioto @ ATO, Banks IC, Mishimoto Rad., 5 foot ladder bars, 6 inch lift with 35's, headache rack, toolbox, hp d60, gauges, soon: built motor.
'55 F100 4x4 11" lift w/36's, 500 hp 460ci
'87 Ranger w/3" lift, CAI, exhaust
'10 F350 CAI, mbrp, spartan tunes