to answers 100% accurately id have to drive it.
but here in net bunny land, cant do that!
but can ask you to post full symptoms.
(trans or clutch issues)
question 1: can you start car in any gear. clutch held to floor, even reverse )
Q2: once started, can you always shift to reverse (the tricky one, gin?) and not grinding and no complaints,balking?
yes then your transmission fluid is low.
is the clutch MC full? and does not drop day by dead week by week???
q4: new clutch
all 5 parts? or more?
PP pressure plate
throw out bearing
flywheel pilot bearing (oops?)
new slave cylinder? ,mc set
the slave and mc are a fixed pair in 2002.FSM C6-p9
and on my 2008
the slave and MC are one part and pre filled.
there is no bleeding steps only top offs.
if the clutch drags,(seems it does)
put in a new MS/SLAVE first.
avoid the 10hr labor. if a new clutch, 4wd.
I have lots more to ask.
so you are driving
and shifting and moving
and 1>2 shifts are what, grinds, or balks.
can you start engine in any gear (clutch to floor)
can you shift any gear parked ,running, and clutch to floor and not moving. including REVERSE ?
if all are good, cept the 1>2 upshift
that means the clutch is not dragging.
and the #2 synchro ring is worn.
or running the wrong trans fluids.
the newer transmissions are very tricky here.
some are very upset with wrong lube. (or too low or is not black as tar)
or mixing 2 brands, or using synthetic and its so slippery the syncrho fails, (cured many like this)
if all this is true, and clutch don't drag (ever)
then get the car to jeep and have them drain it and fill it with the correct lube and win.
now answer 3:
it might be just the shift linkage messed up
if the 1>2 change balks. (not grind)
on mine boxes i can hear the synchro's spin up.
i can feel them engage, if i cant feel that
then the linkage is bad.
the word trouble does not say what that means.
define trouble putting....
find a shop, a Service tech, that owns a m/T box.
Some with a/t are clueless...
ive blown more clutches racing than many ever drove.
IMO, and remember it COST YOU NOTHING to ask. (I'm retired early, gin!)