VIN, 1J4FN2? (S engine code) is 4.0L
I have USA service manuals if in USA why not say so?
ok i decoded much of that, USA code 1.
N = Cherokee 4X4 (RHD) mail version of car RARE
S= enigine 4.0L in line 6, the best engine they ever made, IMO
8= 4doors
now what box is there ,real names mater first
2000 A/T box and TC failures.
post what it does good and bad,. in all gears. first.
check fuses first
check ATF
levels, hot ,idle in park. Low<<<
X>>>>Hot
between the marks, never over hot mark
scan the PCM, P0740,
is not the cause.
TCC is only enabled, (clutch lockup) moving fast in top gear
but yes a TC can FAIL hard (deep inside it) and lockup.
but not told you at all how car drives in
DRIVE or PRNDL (low)
R,D and L. car does in all those, and told D OR L.
to diagnose any car , the good and bad must be told(test driving car)
PRND123 (the books shows all this)
740 is moving fast code and is not for reverse ever (as it happend)
Torq Con Clu, No RPM Drop at Relationship between engine and vehicle speeds Lockup
it means ,you were driving fast and TCM commanded lockup
and the RPM did NOT DROP and is TCC lock up failure
and those we fix last after all else works, R, 1,2,3,4 gears
The TCM is not a genius, at all it will not know every kind of failure
but you do testing the car. and not told yet all modes of driving results.
this car had 2 transmission A/T used
30RH , 3speed for 2.5L only
AW-4., bingo 4speed 4liter box.
The AW-4 is a 4-speed, electronically controlled
automatic transmission .means TCM shifted.
learn to scan transmission as it fails, or you miss the boat.
make sure the gear shift in fact selects the side lever on the transmission correctly, and not bad ,broken bent or misaligned.
does A>T box fail in all DRIVE modes 1,2,3:?
not told at all what all gears to good and bad
a car this old ,will need the pump pressure ports checked
to make sure pump pressure is in spec. in all gears.
all modes PRNDL123.
per the manual use a very high pressure gauge 300PSI.
all transmissions shops have and use it .
page 21-241 up in the SM book, real
D= 61-to-70 psi (hot idle)
D= 173-to-209 ps (WOT)right foot stomp. 3sec.max. test.
R= 75-to-90 psi idle
R= 213-to-263 psi WOT 3secmx.
that is spec, and if below spec the box is bad. pump and or a zillion leaky seals inside that happen 22 years later.
test port left side front. per age 241
that is it all on car testes, (most)
what does DRIVE do.?
×