1993 CHEVROLET PLYMOUTH ACCLAIM maintenance schedule

flakes are visible in the used lubricant or the bearing
rollers and race cup is discolored, the bearing and
race cup should be replaced. For proper service pro-
cedures, see Group 5, Brakes. Replace the inner seal
whenever the wheel bearings are serviced.
REAR WHEEL BEARING LUBRICATION
CAUTION: Combining two types of lubricant can
cause bearing failure. Wash used or new bearings
with a suitable solvent and blot dry with a lint free
cloth before packing with new lubricant.
WARNING: DO NOT ALLOW BEARING TO SPIN AT
HIGH RPM WHEN USING COMPRESSED AIR TO
BLOW CLEANING SOLVENT FROM BEARING.
BEARING CAGE CAN EXPLODE, CAUSING PER-
SONAL INJURY.
TO LUBRICATE REAR WHEEL BEARINGS:
(1) Hoist rear wheels off the ground and support ve-
hicle on safety stands. Refer to Hoisting Recommenda-
tions in the General Information section of this group.
(2) Remove rear wheels.
(3) Remove brake caliper on vehicles with rear disc
brakes. For proper procedure, see Group 5, Brakes. (4) Remove rear wheel hub (drum) assembly and
remove inner grease seal (Fig. 7). For proper service
procedure, see Group 5, Brakes. (5) Inspect bearings, refer to Inspection paragraph
of this procedure. Wash used lubricant from bearings
with solvent and blot or blow dry. (6) Using a bearing packing device, lubricate the
bearings with Mopar, Wheel Bearing Grease or
equivalent. (7) With a wiping cloth, clean used lubricant form
wheel hub assembly and axle spindle. (8) Install inner wheel bearing in the hub assem-
bly, small end of bearing toward hub. With a finger,
smooth out grease around the outside of bearing. (9) Using a seal driver, install new inner hub seal.
(10) Install wheel hub (drum) assembly on axle
spindle. (11) Install outer wheel bearing over the spindle
end, small end of bearing toward hub. With a finger,
smooth out grease around the outside of bearing. (12) Install washer and spindle nut. While rotating
hub, tighten spindle nut to 27 to 34 N Im (240 to 300
in. lbs.) torque. Loosen spindle nut one quarter turn.
Hand tighten spindle nut. (13) Install spindle nut lock cover, cotter pin and
grease cap. (14) Install disc brake caliper on vehicles with disc
brakes. CAUTION: Pump brake pedal several times before
driving vehicle to verify brake operation.
(15) Install wheel and lower vehicle.
BRAKES
BRAKE PAD AND LINING INSPECTION
The brake pads and linings should be inspected at dis-
tance intervals described in the Lubrication and Main-
tenance Schedules. Refer to the General Information
section of this group. If brake pads or linings appear ex-
cessively worn, the brakes would require service. For
proper service procedures, refer to Group 5, Brakes.
BRAKE HOSE INSPECTION
WARNING: IF FRONT WHEEL, REAR AXLE, OR AN-
TI-LOCK UNIT BRAKE HOSE OUTER COVER IS
CRACKED, CHAFED, OR BULGED, REPLACE HOSE
IMMEDIATELY. BRAKE FAILURE CAN RESULT.
The front wheel, rear axle and anti-lock unit (if
equipped) brake hoses should be inspected at time
and distance intervals described in the Lubrication
and Maintenance Schedules. Refer to the General In-
formation section of this group. A hose must be re-
placed if it has signs of cracking, chafing, fatigue or
bulging. For proper service procedures, refer to
Group 5, Brakes.
BRAKE LINE INSPECTION
The metal brake lines should be inspected when other
under vehicle service is preformed. If a line is pinched,
kinked, or corroded, it should be repaired. For proper
service procedures, refer to Group 5, Brakes.
Fig. 7 Rear Wheel Bearings
Ä LUBRICATION AND MAINTENANCE 0 - 21

-37ÉC (-35ÉF) to -59ÉC (-50ÉF). If it looses color or
becomes contaminated, drain, flush, and replace with
fresh properly mixed solution.
SERVICE
Coolant should be changed at 52,500 miles or three
years, whichever occurs first, then every two years or
30,000 miles.
ROUTINE LEVEL CHECK
Do not remove radiator cap for routine coolant
level inspections. The coolant reserve system provides a quick visual
method for determining the coolant level without re-
moving the radiator cap. Simply observe, with the
engine idling and warmed up to normal operating
temperature, that the level of the coolant in the reserve
tank (Figs. 5 and 6) is between the minimum and
maximum marks.
ADDING ADDITIONAL COOLANT
The radiator cap should not be removed. When
additional coolant is needed to maintain this level, it
should be added to the coolant reserve tank. Use only
50/50 concentration of ethylene glycol type antifreeze
and water.
SERVICE COOLANT LEVEL
The cooling system is closed and designed to main-
tain coolant level to the top of the radiator. When servicing requires a coolant level check in the
radiator, the engine must be offand notunder pres-
sure. Drain several ounces of coolant from the radiator
drain cock while observing the Coolant Recovery Sys-
tem (CRS) Tank. Coolant level in the CRS tank should
drop slightly. Then remove the radiator cap. The radia-
tor should be full to the top. If not, and the coolant level
in the CRS tank is at the MIN mark there is a air leak
in the CRS system. Check hose or hose connections to
the CRS tank, radiator filler neck or the pressure cap
seal to the radiator filler neck for leaks.
LOW COOLANT LEVEL AERATION
Low coolant level in a cross flow radiator will equal-
ize in both tanks with engine off. With engine at
running operating temperature the high pressure inlet
tank runs full and the low pressure outlet tank drops.
If this level drops below the top of the transmission oil
cooler, air will be sucked into the water pump:
² Transmission oil will become hotter.
² High reading shown on the temperature gauge.
² Air in the coolant will also cause loss of flow through
the heater.
² Exhaust gas leaks into the coolant can also cause the
same problems.
DEAERATION
Air can only be removed from the system by gather-
ing under the pressure cap. On the next heat up it will
be pushed past the pressure cap into the CRS tank by
thermal expansion of the coolant. It then escapes to the
atmosphere in the CRS tank and is replaced with solid
coolant on cool down.
COOLING SYSTEM DRAIN, CLEAN, FLUSH AND
REFILL
Drain, flush, and fill the cooling system at the
mileage or time intervals specified in the Maintenance
Schedule in this Group. If the solution is dirty or rusty
or contains a considerable amount of sediment, clean
and flush with a reliable cooling system cleaner. Care
should be taken in disposing of the used engine coolant
from your vehicle. Check governmental regulations for
disposal of used engine coolant.
DRAINING
To drain cooling system move temperature selector
for heater to full heat with engine running (to provide
vacuum for actuation). Without removing radiator
pressure cap and with system not under pres-
sure, Shut engine off and open draincock. The coolant
reserve tank (Fig. 5) should empty first, then remove
radiator pressure cap. (if not, see Testing Cooling
System for leaks). To vent 2.2/2.5L engines remove the
plug above thermostat housing (Fig. 1). For Turbo III
engines remove coolant temperature sensor in the
thermostat housing (Fig. 2). For 3.3L /3.8L engine
remove the engine temperature sending unit (Fig. 3).
Removal of a plug or other component is required
because the thermostat has no air vent and prevents
air flow through it. This allows the coolant to drain
from the engine block.
Fig. 1 Thermostat Housing Drain/Fill PlugÐ2.2/2.5L Engines
Ä COOLING SYSTEM 7 - 15

RESTRAINT SYSTEMS
CONTENTS
page page
AIR BAG MODULE ....................... 4
AIR BAG SERVICE AND TEST PROCEDURES . 1
AIR BAG SYSTEM CHECK ................. 3
AIR BAG SYSTEM DIAGNOSTIC MODULE (ASDM) .............................. 5
CLOCKSPRING .......................... 6
CLOCKSPRING CENTERING PROCEDURE .... 6 GENERAL INFORMATION
.................. 1
LEFT FRONT IMPACT SENSOR ............. 4
RIGHT FRONT IMPACT SENSOR ........... 5
SCHEDULED MAINTENANCE INSPECTION .... 3
STEERING COLUMN SWITCHES ............ 7
STEERING WHEEL ....................... 7
AIR BAG SERVICE AND TEST PROCEDURES
WARNING: THIS SYSTEM IS A SENSITIVE, COM-
PLEX ELECTRO-MECHANICAL UNIT. BEFORE AT-
TEMPTING TO DIAGNOSE, REMOVE OR INSTALL
THE AIR BAG SYSTEM COMPONENTS, YOU MUST
FIRST DISCONNECT AND ISOLATE THE NEGATIVE
(GROUND) BATTERY CABLE. FAILURE TO DO SO
COULD RESULT IN ACCIDENTAL DEPLOYMENT
AND POSSIBLE PERSONAL INJURY. WHEN AN UNDEPLOYED AIR BAG ASSEMBLY
IS TO BE REMOVED FROM THE STEERING
WHEEL, DISCONNECT BATTERY GROUND CA-
BLE AND ISOLATE. ALLOW SYSTEM CAPACI-
TOR TO DISCHARGE FOR TWO MINUTES THEN
BEGIN AIR BAG SYSTEM COMPONENT RE-
MOVAL. Vehicles equipped with a Air Bag System must be
inspected every three years or 30,000 miles / 48,000
Km. To inspect system use Passive Restraint System
Diagnostic Procedures Manual. If the Air Bag Module Assembly is defective and
non-deployed, refer to Chrysler Motors current re-
turn list for proper handling procedures.
WARNING: REPLACE AIR BAG SYSTEM COMPO-
NENTS WITH CHRYSLER MOPAR TSPECIFIED RE-
PLACEMENT PARTS. SUBSTITUTE PARTS MAY
VISUALLY APPEAR INTERCHANGEABLE, BUT IN-
TERNAL DIFFERENCES MAY RESULT IN INFERIOR
OCCUPANT PROTECTION.
THE FASTENERS, SCREWS, AND BOLTS, ORIG-
INALLY USED FOR THE AIR BAG COMPO-
NENTS, HAVE SPECIAL COATINGS AND ARE
SPECIFICALLY DESIGNED FOR THE AIR BAG
SYSTEM. THEY MUST NEVER BE REPLACED
WITH ANY SUBSTITUTES. ANYTIME A NEW
FASTENER IS NEEDED, REPLACE WITH THE CORRECT FASTENERS PROVIDED IN THE SER-
VICE PACKAGE OR FASTENERS LISTED IN THE
PARTS BOOKS.
GENERAL INFORMATION
AIR BAG MODULE
The air bag module is the most visible part of the
system (Fig 1). It contains the air bag cushion and
its supporting components. The air bag module con-
tains a housing to which the cushion and inflator are
attached and sealed.
The inflator assembly is mounted to the back of the
module housing. When supplied with the proper elec-
trical signal the inflator assembly will produce a gas
and discharges it directly into the cushion. A protec-
tive cover is fitted to the front of the air bag module
and forms a decorative cover in the center of the
steering wheel. The air bag module is mounted di-
rectly to the steering wheel.
Fig. 1 Air Bag Passive Restraint System
Ä RESTRAINT SYSTEMS 8M - 1

SERVICE OF DEPLOYED AIR BAG MODULE
After an air bag has been deployed, the air bag
module and clockspring must be replaced because
they cannot be reused. Other air bag system compo-
nents are replaced if damaged.
SCHEDULED MAINTENANCE INSPECTION
Vehicles equipped with a Air Bag System must be
inspected every three years or 30,000 miles / 48,000
Km. The following items should be inspected. (1) Inspect components for damage or deteriora-
tion. (a) If the air bag module housing shows signs of
physical damage or abuse, replace the module. (b) Check that both front impact sensors are
properly installed to the upper crossmember of the
radiator closure panel. Repair as required.
(2) Check the air bag warning lamp for proper op-
eration as follows: (a) Turn ignition switch to the ON position, the
air bag warning lamp should light. If not, test the system using the DRB II and Passive Restraint
System Diagnostic Procedures Manual. Repair as
required.
(b) The air bag warning lamp lights, but fails to go
out after ten seconds. Test the system using the DRB
II and Passive Restraint System Diagnostic Proce-
dures Manual. Repair as required. (c) Erasing of fault codes is not required.
AIR BAG SYSTEM CHECK
WARNING: BEFORE BEGINNING ANY AIR BAG SYS-
TEM CHECK PROCEDURES, REMOVE AND ISOLATE
THE BATTERY NEGATIVE (-) CABLE (GROUND)
FROM THE VEHICLE BATTERY. THIS IS THE ONLY
SURE WAY TO DISABLE THE AIR BAG SYSTEM.
FAILURE TO DO THIS COULD RESULT IN ACCIDEN-
TAL AIR BAG DEPLOYMENT AND POSSIBLE PER-
SONAL INJURY.
WHEN AN UNDEPLOYED AIR BAG ASSEMBLY IS
TO BE REMOVED FROM THE STEERING WHEEL,
DISCONNECT BATTERY GROUND CABLE AND
ISOLATE. ALLOW SYSTEM CAPACITOR TO DIS-
CHARGE FOR TWO MINUTES, THEN BEGIN AIR
BAG REMOVAL. (1) Disconnect the battery negative cable and iso-
late. (2) Remove forward console or cover as necessary.
(3) Connect DRB II to ASDM diagnostic 6-way con-
nector, located at right side of module. (4) Turn the ignition key to ON position. Exit vehicle
with DRB II. Use the latest version of the proper
cartridge. (5) After checking that no one is inside the vehicle,
connect the negative battery cable. (6) Using the DRB II, read and record active fault
data. (7) Read and record any stored faults.
(8) Refer to the Passive Restraint Diagnostic Test
Manual if any faults are found in steps 6 and 7. (9) Erase stored faults if there are no active fault
codes. If problems remain, fault codes will not erase. (10) With the ignition key in the ON position, make
sure no one is in the vehicle. (11) From the passenger side of vehicle, turn the
ignition key to OFF then ON and observe the instru-
ment cluster air bag lamp. It should go on for 6 to 8
seconds, then go out; indicating system is functioning
normally. If air bag warning lamp either fails to light,
blinks on and off or goes on and stays on, there is
a system malfunction. Refer to the Passive Re-
straint Diagnostic Test Manual to diagnose the
problem.
Fig. 3 Seal the Air Bag Exhaust Vents
Fig. 4 Vacuum Heater and A/C Outlets
Ä RESTRAINT SYSTEMS 8M - 3

EXHAUST SYSTEM AND INTAKE MANIFOLD
CONTENTS
page page
GENERAL INFORMATION .................. 1
SERVICE PROCEDURES ................... 4 TORQUE SPECIFICATION
................. 25
GENERAL INFORMATION
Throughout this group, references may be made to
a particular vehicle by letter or number designation.
A chart showing the breakdown of these designations
is included in the Introduction Section at the front of
this service manual.
EXHAUST SYSTEMS
The exhaust systems are produced in several con-
figurations, depending on engine and car line (Fig.
1). One system has an underfloor catalytic converter,
other systems require front mounted catalytic con-
verters. The Turbo III engine requires, a underfloor
converter/resonator assembly. Tail pipes, mufflers,
and resonators are sized and tuned to each vehicle/
powertrain combination (Fig. 2).
EXHAUST BALL JOINT COUPLING
A exhaust ball joint coupling (Fig. 3) is used to se-
cure the exhaust pipe to the engine manifold. This
living joint actually moves back and forth as the en- gine moves, preventing breakage that could occur
from the back-and-forth motion of a transverse
mounted engine. The exhaust ball joint consists of two bolts, two
springs, and a ball joint seal ring which is a separate
part from the exhaust pipe.
CATALYTIC CONVERTER
There is no regularly scheduled maintenance on
any Chrysler catalytic converter. If damaged, the
converter must be replaced.
CAUTION: Due to exterior physical similarities of some
catalytic converters with pipe assemblies, extreme
care should be taken with replacement parts. There is
internal converter differences required in some parts
of the country (particularly California vehicles). The
2.2/2.5L engines equipped with a manual transmission will
have an adaptor for a air injection tube.
Fig. 1 Exhaust System
Ä EXHAUST SYSTEM AND INTAKE MANIFOLD 11 - 1