Jeep Wrangler 1997 Manual - page 946
cations of component damage are usually hard shift-
ing and noise.
Component damage, incorrect clutch adjustment,
or a damaged clutch pressure plate or disc are addi-
tional probable causes of increased shift effort. Incor-
rect adjustment or a worn/damaged pressure plate or
disc can cause incorrect release. If the clutch problem
is advanced, gear clash during shifts can result.
Worn or damaged synchro rings can cause gear clash
when shifting into any forward gear. In some new or
rebuilt transmissions, new synchro rings may tend to
stick slightly causing hard or noisy shifts. In most
cases,
this
condition
will
decline as
the
rings
wear–in.
TRANSMISSION NOISE
Most manual transmissions make some noise dur-
ing normal operation. Rotating gears generate a mild
whine that is audible, but generally only at extreme
speeds.
Severe, highly audible transmission noise is gener-
ally the initial indicator of a lubricant problem.
Insufficient, improper, or contaminated lubricant will
promote rapid wear of gears, synchros, shift rails,
forks and bearings. The overheating caused by a
lubricant problem, can also lead to gear breakage.
REMOVAL AND INSTALLATION
TRANSMISSION
REMOVAL
(1) Shift transmission into first or third gear.
(2) Raise and support vehicle on suitable safety
stands.
(3) Disconnect necessary exhaust system compo-
nents.
Fig. 5 Output Shaft and Gears
Fig. 4 Drain Plug Location
21 - 40
TRANSMISSION AND TRANSFER CASE
TJ
DIAGNOSIS AND TESTING (Continued)