shifting problems

  1. S

    94 7.3 IDI-T, E40D shifting hard??

    My transmission recently started shifting hard up through the gears, it also bounces back and forth in and out of overdrive as it upshifts. I’ve done a ton of research on the issue and gone through almost every aspect of the truck trying to diagnose what’s causing the fault. FYI I am not...
  2. J

    Multiple Fuel Problems/Shifting Problems?

    Alright y'all I got this 93 7.3 IDI NA about a month ago and i have multiple problems and need some guidance on what order I should try to knock my problems out. No Power/ Billowing Black Smoke - A little background info: the PO straight piped it with a 12" cat stack (was a teenager and was...
  3. trythis

    95 F 450 super duty automatic shifting up to soon.

    Hello fellow oil burners hoping all is well. I am having problems with my f super duty it's a 1996 450 it's a flatbed dump automatic 460 gasser. I've had the truck for several years. I let the tranny get dirty, when I changed the fluid and filter it was still shifting irregular and I changed the...
  4. dan-o

    Tachometer works, tranny works. Tach doesn't work, tranny slips bad

    My 1989 ambulance is acting weird. Started up great today, but the tach was reading 0. I put it in reverse. No problem backing up. Put it in drive and it acted like it was VERY low on transmission fluid. Dip stick showed it a little low after letting it warm up, so I adding 1/2 qt. Still the...
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