1988 JEEP CHEROKEE wheel alignment

are continually republished. In addition to these, standards for Drive
Train and Transmissions have recently been promulgated. Participating
shops utilize these Uniform Inspection & Communication Standards as
part of the inspection process and for communicating their findings to
their customers.
The Motorist Assurance Program continues to work
cooperatively and proactively with government agencies and consumer
groups toward solutions that both benefit the customer and are
mutually acceptable to both regulators and industry. We maintain the
belief that industry must retain control over how we conduct our
business, and we must be viewed as part of the solution and not part
of the problem. Meetings with state and other government officials
(and their representatives), concerned with auto repair and/or
consumer protection, are conducted. Feedback from these sessions is
brought back to the association, and the program adjusted as needed.
To assure auto repair customers recourse if they were not
satisfied with a repair transaction, the Motorist Assurance Program
offers mediation and arbitration through MAP/BBB-CARE and other non-
profit organizations. MAP conducted pilot programs in twelve states
before announcing the program nationally in October, 1998. During the
pilots, participating repair shops demonstrated their adherence to the
Pledge and Standards and agreed to follow the UICS in communicating
the results of their inspection to their customers. To put some
"teeth" in the program, an accreditation requirement for shops was
initiated. The requirements are stringent, and a self-policing method
has been incorporated which includes the "mystery shopping" of
outlets.
We welcome you to join us as we continue our outreach... with
your support, both the automotive repair industry and your customers
will reap the benefits. Please visit MAP at our Internet site www.
motorist.org or contact us at:
1444 I Street, NW Suite 700
Washington, DC 20005
Phone (202) 712-9042 Fax (202) 216-9646
January 1999
MAP UNIFORM INSPECTION GENERAL GUIDELINES
OVERVIEW OF SERVICE REQUIREMENTS & SUGGESTIONS
It is MAP policy that all exhaust, brake, steering,
suspension, wheel alignment, drive-line, engine performance and
maintenance, and heating, ventilation and air conditioning, and
electrical services be offered and performed under the standards and
procedures specified in these sections.
Before any service is performed on a vehicle, an inspection
of the appropriate system must be performed. The results of this
inspection must be explained to the customer and documented on an
inspection form. The condition of the vehicle and its components will
indicate what services/part replacements may be "Required" or
"Suggested". In addition, suggestions may be made to satisfy the
requests expressed by the customer.
When a component is suggested or required to be repaired or
replaced, the decision to repair or replace must be made in the
customer's best interest, and at his or her choice given the options
available.
This section lists the various parts and conditions that
indicate a required or suggested service or part replacement.
Although this list is extensive, it is not fully inclusive. In
addition to this list, a technician may make a suggestion. However,
any suggestions must be based on substantial and informed experience,

Worn so it contacts
bottom of pulley ....... A ............ Require replacement.
(1) - Determine cause of incorrect alignment and require repair.
( 2) - Determine cause of noise and suggest repair.









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BLEND DOORS
See PLENUMS.
BLOWER FANS (BLOWER WHEEL OR SQUIRREL CAGE)
BLOWER FAN (BLOWER WHEEL OR SQUIRREL CAGE) INSPECTION








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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Application incorrect ... B .. Require repair or replacement.
Broken .................. A ............ Require replacement.
Cracked ................. A ............. Require replacement
Distorted ............... A ............ Require replacement.
Fins missing ............ C ............ Require replacement.
Hub separated ........... A ............ Require replacement.
Inoperative ............. A ........ ( 1) Require replacement.
Mounting loose .......... A .. Require repair or replacement.
Noisy ................... 2 ............ Suggest replacement.
Out of balance .......... A .. Require repair or replacement.
( 1) - Inoperative includes intermittent operation or out of
OEM specification.









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BLOWER MOTORS
BLOWER MOTOR INSPECTION








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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Connector broken ........ A .. Require repair or replacement.
Connector (Weatherpack
type) leaking .......... A .. Require repair or replacement.
Connector melted,
affecting performance .. A ........... ( 1) Require repair or
replacement.
Connector melted, not

satisfied with a repair transaction, the Motorist Assurance Program
offers mediation and arbitration through MAP/BBB-CARE and other non-
profit organizations. MAP conducted pilot programs in twelve states
before announcing the program nationally in October, 1998. During the
pilots, participating repair shops demonstrated their adherence to the
Pledge and Standards and agreed to follow the UICS in communicating
the results of their inspection to their customers. To put some
"teeth" in the program, an accreditation requirement for shops was
initiated. The requirements are stringent, and a self-policing method
has been incorporated which includes the "mystery shopping" of
outlets.
We welcome you to join us as we continue our outreach with
your support, both the automotive repair industry and your customers
will reap the benefits. Please visit MAP at our Internet site www.
motorist.org or contact us at:
1444 I Street, NW Suite 700
Washington, DC 20005
Phone (202) 712-9042 Fax (202) 216-9646
January 1999
MAP UNIFORM INSPECTION GENERAL GUIDELINES
OVERVIEW OF SERVICE REQUIREMENTS AND SUGGESTIONS
It is MAP policy that all exhaust, brake, steering,
suspension, wheel alignment, drive-line, engine performance and
maintenance, and heating, ventilation and air conditioning, and
electrical services be offered and performed under the standards and
procedures specified in these sections.
Before any service is performed on a vehicle, an inspection
of the appropriate system must be performed. The results of this
inspection must be explained to the customer and documented on an
inspection form. The condition of the vehicle and its components will
indicate what services/part replacements may be "Required" or
"Suggested". In addition, suggestions may be made to satisfy the
requests expressed by the customer.
When a component is suggested or required to be repaired or
replaced, the decision to repair or replace must be made in the
customer's best interest, and at his or her choice given the options
available.
This section lists the various parts and conditions that
indicate a required or suggested service or part replacement.
Although this list is extensive, it is not fully inclusive. In
addition to this list, a technician may make a suggestion. However,
any suggestions must be based on substantial and informed experience,
or the vehicle manufacturer's recommended service interval and must be
documented.
Some conditions indicate that service or part replacement is
required because the part in question is no longer providing the
function for which it is intended, does not meet a vehicle
manufacturer's design specification or is missing.
Example:
An exhaust pipe has corroded severely and has a hole in it
through which exhaust gases are leaking. Replacement of the
exhaust pipe in this case is required due to functional
failure.
Example:
A brake rotor has been worn to the point where it measures
less than the vehicle manufacturer's discard specifications.

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Condition Code Procedure
Tire diameter incorrect,
affecting ABS or TCS ... A ............ Require replacement.
Tire pressure incorrect,
affecting ABS or TCS ... A .. Require repair or replacement.
Tire size incorrect,
affecting ABS or TCS ... A ............ Require replacement.









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TOOTHED RINGS (TONE WHEEL)
NOTE: Copied from Drivetrain UIGs.
If the toothed ring requires replacement and cannot be
replaced as a separate component, replace the assembly of which the
ring is a part.
TOOTHED RING INSPECTION









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Condition Code Procedure
Alignment incorrect ..... B ............... Require repair or
replacement.
Bent .................... B ............ Require replacement.
Contaminated, affecting
performance ............. A ........ Require repair. Identify
and correct cause.
Cracked ................. B ............ Require replacement.
Loose ................... A ............. Require replacement
of worn parts.
Missing ................. C ............ Require replacement.
Number of teeth
incorrect .............. B ............ Require replacement.
Teeth broken ............ A ............ Require replacement.
Teeth damaged, affecting
performance ............ A ............ Require replacement.









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VACUUM BOOSTERS
VACUUM BOOSTER INSPECTION








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Condition Code Procedure
Applies too much assist
(oversensitive) ........ A ............ Require replacement.
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Auxiliary vacuum pump
inoperative ............ A ........... ( 1) Require repair or
replacement.
Check valve grommet
deteriorated, affecting
performance ............ A .. Require replacement of grommet.

and reinstalled. Brake shoes can be manually adjusted by rotating
adjuster screw. Remove access slot cover.
3) Using a small blade screwdriver, push in on adjustment
lever to separate from adjustment screw. Turn adjustment screw until
brake drum is locked tight. Back screw off until wheel rotates freely.
If brake drum is to be removed, back off adjustment screw several
notches for adequate clearance.
HEIGHT SENSING PROPORTIONING VALVE - COMANCHE
NOTE: Anytime adjustment is required the lever bushing must be
replaced.
Adjustment must be made on a drive-on lift or a flat level
surface with vehicle at curb weight. Remove height sensing
proportioning valve shaft nut and washer. Disconnect valve lever and
remove spring. Remove and discard bushing.
Rotate valve shaft to permit installation and proper
alignment of valve adjusting gauge (J-35853-2).
NOTE: The gauge (J-35853-2) must be properly seated on the "D"
shape of the shaft and the lower mounting bolt of the valve.
See Fig. 2. Also, all linkage components, excluding the
spring, must be connected to the axle housing before
installation of bushing.
Place lever bushing in lever. Using bushing installation
tool (J-35853-1) press bushing along with lever onto valve shaft.
Remove lever and adjusting to (J-35853-2) then install the spring.
Install lever, washer and retaining nut. Tighten retaining nut to 100
Inch-lbs. (11 N.m). Connect spring to lever arm.
Fig. 1: Exploded View of Height Sensing Proportioning Valve

CLUTCH
Removal
Remove transmission assembly. Mark position of clutch cover
on flywheel for reassembly reference. Evenly loosen clutch cover bolts
one or 2 turns at a time until clutch cover spring tension is
released. Remove cover bolts, clutch cover, and disc. See Fig. 1.
Installation
1) Check all components for wear or damage and replace as
necessary. Using clutch alignment tool, align clutch disc and loosely
install clutch cover. Be sure marks made during removal are aligned.
2) To avoid warping clutch cover, tighten each cover bolt a
few turns at a time. To complete installation, reverse removal
procedure.
Fig. 1: Exploded View Of Cherokee, Comanche & Wagoneer Hydraulic
Clutch Assembly
Wrangler has a one-piece slave cylinder.
CLUTCH MASTER CYLINDER
Removal
1) Disconnect hydraulic line at master cylinder. Plug
openings to prevent dirt from entering system. Remove cotter pin and
washer holding cylinder push rod on clutch pedal.
2) Slide push rod off pedal pivot. Remove nuts attaching
clutch master cylinder to studs on dash panel and remove cylinder.
Installation
To install, reverse removal procedure. Bleed hydraulic
system.

1) Coat intermediate shaft with lubricant and carefully slide
through seal and engage in drive axle splines. Install retaining clip.
2) Install shift collar on axle shaft. Install outer axle
shaft and check for smooth operation of shift collar.
3) Apply bead of silicone sealer to inspection cover and
install cover. Fill axle housing with 2.5 pts. (1.2L) of 75W 90 gear
oil. Pour a small amount of gear oil on shift collar and install
disconnect housing. Ensure shifting fork is properly positioned in
shift collar.
4) To complete installation, reverse removal procedure.
Tighten all bolts and nuts to specification. See TORQUE SPECIFICATIONS
table at end of this article.
FRONT AXLE ASSEMBLY R & I
REMOVAL (CHEROKEE, COMANCHE, WAGONEER)
1) Raise and support vehicle. Remove tire and wheel assembly.
Remove hubs, spindles and axles. See FRONT HUB, BEARING, SPINDLE &
AXLE SHAFT in this article.
2) Disconnect vacuum hoses and electrical connections from
shift motor. Disconnect stabilizer bar, track bar and steering damper.
3) Disconnect drive shaft at pinion yoke and tie to frame.
Remove left and right tie rod ends from knuckles.
4) Support axle assembly on floor jack. Remove lower shock
mounts. Disconnect axle housing-to-frame control arms at axle. Lower
floor jack slowly and remove axle assembly. Remove coil spring lower
bracket and coil spring.
INSTALLATION
1) Place axle housing on floor jack and position under
vehicle. Install coil springs and raise assembly into position. Ensure
top of coil springs seat in spring pocket.
2) Check all bushings and mounting hardware for wear or
damage. To complete installation, reverse removal procedure. Tighten
all bolts and nuts to specification. See TORQUE SPECIFICATIONS table
at end of this article. Fill axle assembly with gear oil. Check wheel
alignment.
REAR HUB, BEARINGS & AXLE SHAFTS R & I
1) Raise and support vehicle. Remove tire and wheel assembly.
Remove axle flange nuts or bolts. If nuts are used, rap center of axle
flange sharply with hammer to loosen tapered dowels. Remove bolts or
dowels and pull axle shaft out of hub.
2) Depending on application, bend back ears of lock washer,
or remove locking wedge from nut, or remove snap ring and key. Remove
bearing adjusting nut(s) and remove hub assembly.
3) Remove inner hub seal and bearing. Inspect bearings and
races for wear. To replace bearing, drive outer race from bearing hub
using a punch and hammer. Install new race being careful not to chip
or dent race. Ensure new race is seated in hub.
4) Pack bearings with multi-purpose grease. Install new seal.
Carefully install hub on axle spindle to avoid damaging seal lip and
spindle threads.
5) Install outer bearing and adjusting nut. Tighten bearing
adjusting nut in steps. See REAR HUB BEARING ADJUSTING SPECIFICATIONS
table. Install lock ring if used. Install spindle lock nut if used and
tighten to proper specification. See REAR HUB BEARING ADJUSTING
SPECIFICATIONS table.

Vibration can come from many sources. Before overhauling
driveline, check other sources of possible vibration as follows:
* Tires and wheels - Check tire inflation and wheel balance.
Check for foreign objects in tread, damaged tread, mismatched
tread patterns or incorrect tire size.
* Center Bearing - Tighten drive shaft center bearing
mounting bolts. If bearing insulator is deteriorated or
oil-soaked, replace it.
* Engine & Transmission Mountings - Tighten mounting bolts.
If mountings are deteriorated, replace them.
* Drive Shaft - Check drive shaft for damage or dents that
could affect balance. Check for undercoating adhering to
shafts. If present, clean shafts thoroughly.
* Universal Joints - Check for foreign material stuck in
joints. Check for loose bolts and worn bearings.
ADJUSTMENTS
DRIVE SHAFT PHASING
One-Piece Shafts
Check that flanges on either end of drive shaft are in same
plane. Often there are arrows on slip joint and drive shaft to aid in
alignment. See Fig. 2. If flanges are not in same plane, disassemble
universal joint and align.
Fig. 2: Slip Joint Alignment Arrows
Align arrows for proper shaft phasing.
2-Piece Shafts
1) All General Motors models with 32 splines use keys on
spline and slip joint, which can only mate in correct position. On
most models with 2-piece shafts, proper phasing is accomplished by
keys on spline and slip joint.