I do a lot of off-roading with my 90 XJ. Since I have an automatic, my
choices are 1-2, 3, D. When I am in 4WD-Lo and can get some decent speed in
3rd gear. When I need to slow down I shift down to 1-2. The Jeep
transmission will only stay if 1st gear and never give me access to
2nd......where I really want to be. (i.e., 1st is too slow and 3rd is too
fast). Other than tossing the automatic and replacing it with a stick, does
anybody have any ideas?

Someone posted something about a computer chip or something that would
'hold' the auto in first or second because the bugger wants to shift
down just as they are powering up the last 1/4 of a sand pit wall, so
the gear down shot just digs them holes and they are stopped.

I have never heard of it happening the other way where you are actually
stuck in 1st....

Personally, and from my experience on lots of Jeep off road runs, I
would prefer to be stuck in 1st in an automatic to climb a wall rather
than have it being in second with a potential unexpected or unwanted
kick down into first under load.

That is a big problem with the autos on our runs, they lose it 3/4 the
way up when it kicks down and just dig holes.

With my standard shift XJ, I run in 2nd low on climbs because the 4.0 is
a bit weak in low end torque so I need to keep the rpm up, with my CJ7
and it's 4.2 engine, I run in 3rd low and the tach says +/- 400 rpm as I
am powering up the crest. I have 'never' had a stall, my BFG 33x9.5
muds will just dig in if I get too steep and we run 50-65+ deg pit
walls. I have had ATV's flip over backwards trying to follow me. <grin>

So, have you checked the mechanical linkage adjustment from your
throttle lever at the throttle body to the tranny?

The kick down to a lower gear can be adjusted there on most of the ones
I have seen.

Maybe you want it to kick down, maybe you don't.....

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Jim McGeough wrote:

Thanks for the input Mike. The problem I have is when I am going down a
long steep hill. If I'm in 3rd gear in 4WD-Lo, then I am constatnly riding
my brakes. When I shift down, it goes to 1st gear and then I am going way
too slow (RPM's up to 3,000 on the tach). I have an Atlas II transfer case
and 3.8:1 gears. 1st gear is great for crawling, but I need that middle
gear for the down-hill stuff.
"Mike Romain" <romainm (AT) sympatico (DOT) ca> wrote

Hi Jim,
http://cherokee-jeep.com/ and:
http://www.dirtroad.com/compushift.htm
God Bless America, ßill O|||||||O
mailto:LWHughes3rd (AT) aol (DOT) com http://www.billhughes.com/

Jim McGeough wrote:

Jim McGeough wrote:

Ummm, why would you want to be in 4wd low and run in anything but 1st gear?
Isn't that what it's for? The crawl speed and the massive torque? Anything
else, I assume you could get using a lower gear in 4wd high.

Actually, I frequently use 4-Lo in second gear (auto). Sometimes it provides
just the right combination of speed and torque.

Tom

"Big Daddy" <DontBother (AT) nowhere (DOT) com> wrote


snip

Here ya go. Let me know how it works out for you.
http://www.ilovejeeps.com/tech/article.cfm?ID=5
TrailMarker

Thanks, that's exactly what I was looking for!!
"Carrollcaboodle" <carrollcaboodle (AT) aol (DOT) com> wrote