Alright. heres a good one. to start off my jeep is equipped as follows. 4.5 inches of lift, 33 in DC mud countrys, dana 30, chrys. 8.25 w/ 3.55 gears, aw4, 231j, factory speed sensor. Now for the fun stuff.
Last summer, on average driving (no wheeling, no hauling) i would average about 190-210 of my incorrect trip odometers miles per tank and thats running down till the light comes on and then some. Recently i have been averaging about 150 and less miles per tank. i know my odometer is off so just bare with me and dont tell me im averaging less than 7 miles per gallon!
I have no engine light on (bulb is good), fuel pressure was within spec but low. I appear to have no injector leakdown. she idles smooth and still sounds good. Last night on my way into work, i noticed that either overdrive or t.c.c. was slipping. i have been having difficulty maintaining highway speeds on level roads(no grade).
now this morning coming home from work i could not get it to drop down into passing gear and when it would engage overdrive if i would back off the throttle just a touch it would shift out of OD and rev up to 3000. a quick jab of the loud pedal and it would upshift.
So, is there some sort of trans controller other than the main pcm or has my tranny had it? if i do replace the trans do i have to stick to pre-95 aw4's or can i use 96-up ones? any other stuff i should consider or test before i condem my trans for my fuel economy?