So, after I've been in 4L for awhile and want to shift back into 4H, or if in either 4L or 4H and I try putting it into reverse......nothing... the engine just spins and doesn't go into gear or it feels like its in gear and it feels like a clutch that just doesn't quite have enough bite to get the drive going. Mind you this is on an automatic. My girlfriends jeep does it, an owner of a jeep company up in Sedona's jeep does it. I've even video taped it on my phone to show Jeep. They tell me, oh no there is no problem and we haven't heard about this from anyone else....really? Jeep's stand is, well, yeah we can see it on the video, but unless we can reproduce it in the shop....it doesn't exist.
Anyway it sucks when it happens when you are on a steep incline and need to shift gears cuzz if your trany don't work, you are kinda up shit creek. Fortunately its only happened about 8 times over the last year.
Anyway, my friend came up with a hypothesis. Jeep re-flashed their computer codes a few years back because they were having false transmission overheat codes.
The assumption is this. Somewhere in the bowels of the computer there is a grey zone that, yeah I know this sounds really lame cuzz computers are all or nothing..... that it still thinks its overheating, but somehow doesn't quite meet all the requirements to throw a code but puts the tranny in a failsafe mode anyway, i.e. disengages it.
My friend figured out that if that happens just turn off the jeep and restart it and voila!! you are back in gear. The assumption is that when you restart the jeep it resets the computer and it thinks all is well again.......
No....I really, really haven't been smoking crack.
Any input from you jeep tech guys?