1991 MITSUBISHI MONTERO suspension
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Stud loose in
taper hole ............. A ........... (7) Require repair or
replacement.
Taper hole elongated .... A ........ ( 8) Require replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ........ ( 7) Require replacement.
Wear exceeds
manufacturer's
specifications .......... B ............ Require replacement.
( 1) - If greaseable, grease joint. If problem persists or
joint is non-greaseable, require replacement.
( 2) - Cracked grease boot will allow contaminants to enter
the joint and will accelerate wear.
( 3) - Lack of grease boot will allow contaminants to enter
the joint and will accelerate wear.
( 4) - Torn grease boot will allow contaminants to enter the
joint and will accelerate wear.
( 5) - If manufacturer's procedures for inspection exist, use
those procedures; otherwise, use an approved inspection
method such as the dry park check.
CAUTION: DO NOT use pliers or pry bar to check ball and
socket movement. Use only moderate hand pressure.
( 6) - Excessive looseness is defined as being significant
enough to affect vehicle handling or structural
integrity.
( 7) - Check for damaged taper hole.
( 8) - Check for damaged stud.
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SHOCK ABSORBERS, STRUT CARTRIDGES AND STRUT ASSEMBLIES
You are not required to replace shocks or struts in axle
sets. However, when replacing a shock or strut due to the conditions
that follow, you may suggest replacement of the other shock or strut
on the same axle for improved performance and preventive maintenance.
* Part is close to the end of its useful life
* To extend tire life
* To balance ride and handling
* To improve stopping distance
When replacing steering and/or suspension components which
may affect an alignment angle, you are required to check and adjust
alignment as needed. Refer to the OEM specifications.
Under no circumstances should a technician bend struts or
strut housings.
A vehicle's load-carrying and handling abilities are limited
by its suspension, tires, brakes, and driveline. Installing coil over
shocks or any other load assist device does not increase the vehicle's
load capacity. See the vehicle owner's manual for more details.
NOTE: If vehicle is equipped with original equipment coil over
shocks, apply the conditions for coil springs from the
SPRINGS - COIL, LEAF AND TORSION BAR section of the
STEERING AND SUSPENSION guidelines. If the vehicle is
equipped with add-on coil over shocks, you may suggest
replacing the shocks with standard shocks for any spring-
related condition.
SHOCK ABSORBER, STRUT CARTRIDGE AND STRUT ASSEMBLY INSPECTION
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(1) - Require replacement of units where dents restrict shock
or strut piston rod movement. If dents don't restrict
movement, no service is suggested or required. Especially
critical on mono-tube shocks.
( 2) - This condition can lead to damage of the piston rod,
which, in turn, causes premature piston rod seal wear.
( 3) - Only required if replacing cartridge.
( 4) - CAUTION: If the strut cartridge has been replaced previously,
the oil on the strut housing may be filler oil. The
technician must identify the source of the oil.
( 5) - If noise is isolated to shock or strut, suggest
replacement.
( 6) - Although shocks or struts may have contributed to tire
cupping, an inspection is needed of the entire suspension
system. If the shock or strut is found to be contributing
to the tire cupping, require replacement.
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SPINDLES
SPINDLE INSPECTION \
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Condition Code Procedure
Attaching hardware
broken ................. A ... Require replacement of broken
part.
Attaching hardware
loose .................. A ... Require repair or replacement
of loose part.
Attaching hardware
missing ................ C .. Require replacement of missing
part.
Attaching hardware
threads damaged ........ A ... Require repair or replacement
of part with damaged threads.
Attaching hardware
threads stripped
(threads missing) ...... A ..... Require replacement of part
with stripped threads.
Bent .................... B ............ Require replacement.
Broken .................. A ............ Require replacement.
Race seat area
undersized ............. B ............ Require replacement.
Scored .................. A .. Require repair or replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
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SPRINGS - COIL, LEAF AND TORSION BAR
When springs are replaced, it is suggested, but not required,
that both springs on an axle be replaced to maintain equal height from
side to side and to provide a balanced ride and proper handling.
When variable rate springs are installed in place of
conventional coil springs, they must be installed in axle sets to
ensure proper handling, uniform ride, and proper chassis height.
Erroneous height measurements may result from: improper tire
inflation, non-standard tire or wheel size, and heavy load in vehicle
or trunk.
SPRING (COIL, LEAF AND TORSION BAR) INSPECTION
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adjuster bent ......... A ............ (4) Require repair or
replacement of adjuster.
Torsion bar adjuster
seized ................ A .... ( 4) Require repair or replacement
of adjuster.
Torsion bar adjuster
threads damaged ....... A .... ( 4) Require repair or replacement
of part with damaged threads.
Torsion bar adjuster
threads stripped
(threads missing) ..... A ...... Require replacement of part
with stripped threads.
Vehicle suspension height
not within OEM
specifications ........ B ............ Require adjustment or
replacement.
( 1) - If vehicle is within manufacturer's height
specifications, no service is suggested or required.
( 2) - Some manufacturers require replacement under these
conditions.
( 3) - Check vehicle ride height. If ride height is OK, no
service is suggested or required.
( 4) - Only required if ride height needs to be adjusted.
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STEEL POWER STEERING LINES
CAUTION: When replacing steel power steering lines, be sure to use
a replacement product that meets or exceeds OEM design
specifications.
STEEL POWER STEERING LINE INSPECTION
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Condition Code Procedure
Attaching hardware
bent ................... B ... Require repair or replacement
of bent part.
Attaching hardware
broken ................. A ... Require replacement of broken
part.
Attaching hardware
loose .................. A ... Require repair or replacement
of loose part.
Attaching hardware
missing ................ C .. Require replacement of missing
part.
Attaching hardware
threads damaged ........ A ... Require repair or replacement
of part with damaged threads.
Attaching hardware
threads stripped
(threads missing) ...... A ..... Require replacement of part
with stripped threads.
Blocked ................. A .. Require repair or replacement.
Fitting incorrect
(such as compression
fitting) ............... B ............ Require replacement.
Flare type incorrect .... B ........... Required replacement.
Leaking ................. A ........... Require tightening or
replacement.
Line type incorrect ..... B ............ Require replacement.
Page 821 of 1333
if possible. If proper
adjustment cannot be obtained,
require repair or replacement
of worn component.
Wheel bearing race
is loose in the
hub bore ............... A ...... Require replacement of hub
assembly and wheel bearings.
Wheel bearing races
are pitted ............. A .. Require replacement of bearing
assembly.
Wheel bearing races
are worn ............... A .. Require replacement of bearing
assembly.
Wheel bearing rollers
are pitted ............. A .. Require replacement of bearing
assembly.
Wheel bearing rollers
are worn ............... A .. Require replacement of bearing
assembly.
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WHEEL ALIGNMENT
WHEEL ALIGNMENT
Wheel alignment is defined as the measurement, analysis, and
adjustment of steering and suspension angles to conform to OEM
specifications. These angles usually include, but are not limited to:
caster, camber, toe, and thrust angle. Where these angles are not
adjustable and not in specification, component replacement or
correction kits may be required. Errors in set-back and steering axis
inclination (SAI) are often attributable to failed or damaged
components and must be corrected prior to performing an alignment.
Failure to replace or correct suggested parts or service may
prevent a proper alignment.
Before performing an alignment check, inspect and verify the
following:
* Tire pressure and size
* Vehicle loading
* Ride height
* Steering and suspension parts
If the inspection reveals that all the above are within
published specifications, a wheel alignment check and an alignment, if
needed, may be performed.
CAUTION: Under no circumstances should a technician bend or heat
any steering or suspension component, unless specified by
the vehicle manufacturer, for example, Ford forged twin
"I" beam axles. All measurements and specifications must
be noted on the inspection report.
WHEEL ALIGNMENT INSPECTION
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Condition Code Procedure
Dog tracking, shown
to be caused by
faulty alignment ....... 2 ................ Suggest repair.
Lead, shown to
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Fig. 7: Brakes, Steering, & Suspension
Fig. 8: Air Conditioning, Heater & Ventilation
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TR AN SM IS SIO N R EM OVA L & IN STA LLA TIO N - A /T
1991 M it s u bis h i M onte ro
1991 92 TRANSMISSION SERVICING
Transmission Removal & Installation
Mitsubishi: Eclipse, Galant, Mirage, Montero,
Pickup, Precis, 3000GT
MANUAL
NOTE: For manual transmission/transaxle replacement procedures,
see appropriate article in CLUTCHES.
AUTOMATIC FWD MODELS
REMOVAL
1) Remove battery and battery tray. On 3000GT, remove
undercover(s). On Eclipse turbo, drain and remove intercooler. On all
models, remove air cleaner and case. Raise and support vehicle. Remove
wheels. Disconnect control cables at transaxle. Drain transaxle fluid.
2) On Mirage 1.6L, disconnect tension rod. On all models,
disconnect neutral safety switch connector, oil cooler hoses and
electrical connectors from transaxle. Disconnect speedometer cable and
throttle control cable (if equipped). Remove starter motor.
3) On Galant models with electronically controlled
suspension, remove air compressor and bracket. Disconnect front height
sensor rod at lower control arm.
4) On all models, remove upper transaxle-to-engine bolts.
Remove engine undercover (if equipped). On all models, remove drive
axle shafts. See FWD AXLE SHAFTS article in DRIVE AXLES. Separate
lower control arms from struts for access to axle shafts (if
necessary).
5) Remove front exhaust pipe (if necessary). On Eclipse 4WD,\
Galant 4WD and 3000GT, remove right member and gusset. On 4WD models,
separate transfer assembly from transaxle. Reference mark transfer
assembly-to-drive shaft and remove transfer assembly.
6) On all models, remove transmission inspection (dust)
cover. Place index mark on torque converter and drive plate for
reassembly reference. Remove torque converter-to-drive plate bolts.
Push torque converter away from engine into transaxle.
7) Support transaxle with jack. Remove transaxle mounts
bolts, mounting brackets and remaining transaxle-to-engine bolts.
Slide transaxle assembly to right and lower to remove.
CAUTION: Ensure torque converter is fully seated in transaxle before
installation. Always install new snap rings on inner
constant velocity joints.
INSTALLATION
1) To install, reverse removal procedure. Tighten transaxle-
to-engine bolts and torque converter-to-drive plate bolts to
specification. See TORQUE SPECIFICATIONS table at end of article.
2) Ensure reference marks on torque converter-to-drive plate
and transfer assembly-to-drive shaft align. Tighten mounting bolts
with weight of engine and transaxle on mounts. Refill transaxle fluid
to specified level. Adjust all control cables.
RWD MODELS
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![MITSUBISHI MONTERO 1991 Service Manual BRAKE SYSTEM TROUBLE SHOOTING CHART \
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CONDITION](/manual-img/19/57332/w960_57332-1199.png "MITSUBISHI MONTERO 1991 Service Manual BRAKE SYSTEM TROUBLE SHOOTING CHART \
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CONDITION")
BRAKE SYSTEM TROUBLE SHOOTING CHART \
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CONDITION POSSIBLE CAUSE CORRECTION \
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Brakes Pull Left
or Right Incorrect tire pressure Inflate tires to proper
pressure
Front end out of alignment See WHEEL ALIGNMENT
Mismatched tires Check tires sizes
Restricted brake lines
or hoses Check hose routing
Loose or malfunctioning
caliper See DISC BRAKES or
BRAKE SYSTEM
Bent shoe or oily linings See DRUM BRAKES or
BRAKE SYSTEM
Malfunctioning rear brakes See DRUM, DISC BRAKES
or BRAKE SYSTEM
Loose suspension parts See SUSPENSION
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Noises Without
Brakes Applied Front linings worn out Replace linings
Dust or oil on drums See DRUM, DISC BRAKES
or rotors or BRAKE SYSTEM
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Noises With
Brakes Applied Insulator on outboard See DISC BRAKES or
shoe damaged BRAKE SYSTEM
Incorrect pads or linings Replace pads or linings
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Brake Rough, Chatters
or Pulsates Excessive lateral runout Check rotor runout
Parallelism not to
specifications Reface or replace rotor
Wheel bearings not adjusted See SUSPENSION
Rear drums out-of-round Reface or replace drums
Disc pad reversed, steel
against rotor Remove and reinstall
pad
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Excessive Pedal
Effort Malfunctioning power unit See POWER BRAKES or
BRAKE SYSTEM
Partial system failure Check fluid and pipes
Worn disc pad or lining Replace pad or lining
Caliper piston stuck or
Page 1239 of 1333
problem symptoms. For model-specific Trouble Shooting,
refer to SUBJECT, DIAGNOSTIC, or TESTING articles available
in the section(s) you are accessing.
BASIC FWD AXLE SHAFTS & CV JOINTS TROUBLE SHOOTING CHART
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CONDITION POSSIBLE CAUSE \
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Grease Leaks CV boot torn or cracked \
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Clicking Noise on Cornering Damaged outer CV \
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Clunk Noise on Acceleration Damaged inner CV \
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Vibration or Shudder Sticking, damaged or worn CV
on Acceleration Misalignment or spring height
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STEERING & SUSPENSION
MANUAL STEERING GEAR TROUBLE SHOOTING
NOTE: This is GENERAL information. This article is not intended
to be specific to any unique situation or individual vehicle
configuration. The purpose of this Trouble Shooting
information is to provide a list of common causes to
problem symptoms. For model-specific Trouble Shooting,
refer to SUBJECT, DIAGNOSTIC, or TESTING articles available
in the section(s) you are accessing.
BASIC MANUAL STEERING GEAR TROUBLE SHOOTING CHART
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CONDITION POSSIBLE CAUSE CORRECTION \
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Rattle or Rack and pinion mounting Tighten all mounting
Chucking Noise bracket loose bolts
in Rack and
Pinion Lack of/or incorrect Correct as necessary
lubricant
Steering gear mounting Tighten all mounting
bolts loose bolts
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Excessive Play Front wheel bearing See FRONT SUSPENSION
improperly adjusted article
Loose or worn steering See STEERING LINKAGE
linkage article
Loose or worn steering See MANUAL STEERING
gear shift GEAR article
Steering arm loose on See MANUAL STEERING
gear shaft GEAR article
Steering gear housing Tighten all mounting
bolts loose bolts
Steering gear adjustment See MANUAL STEERING
too loose GEAR article
Steering arms loose on Tighten and check