Chrysler New Yorker. Manual — part 57
REMOVAL AND INSTALLATION
SAFETY SWITCHES
For Removal and Installation of the Park/Neutral
Switch, refer to Group 21, Transaxle.
STARTER
2.7L ENGINE
REMOVAL
(1) Disconnect battery negative remote cable from
remote ground post (Fig. 3).
(2) Raise vehicle.
(3) Remove one nut to Catalyst support bracket.
(4) Remove two nuts to Catalyst support bracket
mounting.
(5) Remove two wiring harness connectors. One for
battery feed, and one posi-lock connector.
(6) Remove two bolts and one nut to starter heat
shield.
(7) Remove three starter attaching bolts from
engine/transaxle.
(8) Remove starter assembly from transmission
housing.
(9) Rotate starter solenoid toward engine block
and slide rear of starter motor out between catalyst
and engine mount.
(10) Remove the starter from vehicle.
INSTALLATION
For installation, reverse the above procedures.
Clean corrosion/dirt from the cable and wire termi-
nals before installing wiring to the solenoid.
3.2 / 3.5L ENGINE
REMOVAL
(1) Disconnect battery negative remote cable from
remote ground post (Fig. 3).
(2) Raise vehicle.
(3) Remove one nut to Catalyst support bracket.
(4) Remove two nuts to Catalyst support bracket
mounting.
(5) Remove two bolts and one nut attaching starter
to engine (Fig. 4).
(6) Remove battery positive feed wire from starter.
(7) Remove starter solenoid assembly from trans-
mission housing. Position the starter to gain access
to the posi-lock wiring connector.
(8) Position jack stand beneath engine and slightly
lift to relieve pressure from left engine mount.
(9) Remove three left engine mount mounting bolts
from engine block.
(10) Jack engine up slightly to give more room to
maneuver starter assembly.
(11) Slide rear of starter motor out between cata-
lyst and engine mount.
(12) Disconnect posi-lock starter solenoid connec-
tor.
(13) Remove the starter from vehicle.
INSTALLATION
For installation, reverse the above procedures.
Clean corrosion/dirt from the cable and wire termi-
nals before installing wiring to the solenoid.
Reconnect posi-lock connector right after starter is
placed into position.
Fig. 3 Negative Battery Cable Remote Terminal
Fig. 4 Starter – 3.2 / 3.5L Engine
8B - 6
STARTING
300M
STARTER RELAY
The relay is located in the Power Distribution Cen-
ter (PDC). Refer to the PDC cover for relay location.
SPECIFICATIONS
STARTER
MANUFACTURER NIPPONDENSO
MELCO
ENGINE
APPLICATION
3.2L / 3.5L
2.7L
POWER RATING
1.4 KW
1.4 KW
VOLTAGE
12 VOLTS
12 VOLTS
BRUSHES
4
4
DRIVE
OFFSET
PLANETARY
GEAR
REDUCED
GEAR TRAIN
CRANKING
AMPERAGE*
150 - 280
AMP*
150 - 280
AMP*
DRAW TEST
NOTE: Engine should be up to operating tempera-
ture. Extremely heavy oil or tight engine will
increase starter amperage draw.
TORQUE
DESCRIPTION
TORQUE
Starter Mounting Bolts . . . . . . . 54 N·m (40 ft. lbs.)
Starter Solenoid Battery Nut . . . 10 N·m (90 in. lbs.)
300M
STARTING
8B - 7
REMOVAL AND INSTALLATION (Continued)
CHARGING SYSTEM
CONTENTS
page
page
GENERAL INFORMATION
OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DESCRIPTION AND OPERATION
CHARGING SYSTEM OPERATION . . . . . . . . . . . 1
ELECTRONIC VOLTAGE REGULATOR . . . . . . . . . 2
GENERATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DIAGNOSIS AND TESTING
CHARGING SYSTEM . . . . . . . . . . . . . . . . . . . . . . 2
CHARGING SYSTEM RESISTANCE TESTS . . . . . 6
CURRENT OUTPUT TEST . . . . . . . . . . . . . . . . . . 7
ON-BOARD DIAGNOSTIC SYSTEM TEST . . . . . . 9
REMOVAL AND INSTALLATION
GENERATOR—2.7L . . . . . . . . . . . . . . . . . . . . . . 9
GENERATOR—3.2/3.5L . . . . . . . . . . . . . . . . . . 10
SPECIFICATIONS
TORQUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
GENERAL INFORMATION
OVERVIEW
The battery, starting, and charging systems oper-
ate with one another, and must be tested as a com-
plete system. In order for the vehicle to start and
charge properly, all of the components involved in
these systems must perform within specifications.
Group 8A covers the battery, Group 8B covers the
starting system, and Group 8C covers the charging
system. Refer to Group 8W - Wiring Diagrams for
complete circuit descriptions and diagrams. We have
separated these systems to make it easier to locate
the information you are seeking within this Service
Manual. However, when attempting to diagnose any
of these systems, it is important that you keep their
interdependency in mind.
The diagnostic procedures used in these groups
include the most basic conventional diagnostic meth-
ods to the more sophisticated On-Board Diagnostics
(OBD) built into the Powertrain Control Module
(PCM). Use of an induction ammeter, volt/ohmmeter,
battery charger, carbon pile rheostat (load tester),
and 12-volt test lamp may be required.
All OBD-sensed systems are monitored by the
PCM. Each monitored circuit is assigned a Diagnos-
tic Trouble Code (DTC). The PCM will store a DTC in
electronic memory for any failure it detects. See the
On-Board Diagnostics Test in Group 8C - Charging
System for more information.
DESCRIPTION AND OPERATION
CHARGING SYSTEM OPERATION
The charging system consists of:
• Generator
• Electronic Voltage Regulator (EVR) circuitry
within the Powertrain Control Module (PCM)
• Ignition switch (refer to Group 8D, Ignition Sys-
tem for information)
• Battery (refer to Group 8A, Battery for informa-
tion)
• Battery temperature sensor
• Voltmeter (refer to Group 8E, Instrument Panel
and Gauges for information)
• Wiring harness and connections (refer to Group
8W, Wiring for information)
The charging system is turned on and off with the
ignition switch. When the ignition switch is turned to
the ON position, battery voltage is applied to the
generator rotor through one of the two field termi-
nals to produce a magnetic field. The generator is
driven by the engine through a serpentine belt and
pulley arrangement.
The amount of DC current produced by the gener-
ator is controlled by the EVR (field control) circuitry,
contained within the PCM. This circuitry is con-
nected in series with the rotor field terminal and
ground.
All vehicles are equipped with On-Board Diagnos-
tics (OBD). All OBD-sensed systems, including the
EVR (field control) circuitry, are monitored by the
PCM. Each monitored circuit is assigned a Diagnos-
tic Trouble Code (DTC). The PCM will store a DTC in
electronic memory for any failure it detects. See On-
Board Diagnostic System Test in this group for more
information.
GENERATOR
The generator is belt-driven by the engine. It is
serviced only as a complete assembly. If the genera-
tor fails for any reason, the entire assembly must be
replaced.
As the energized rotor begins to rotate within the
generator, the spinning magnetic field induces a cur-
rent into the windings of the stator coil. Once the
300M
CHARGING SYSTEM
8C - 1
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