Chrysler Town & Country/Voyager, Dodge Caravan, Plymouth Voyager. Manual — part 39
WARNING: CLEAN THROTTLE BODY IN A WELL
VENTILATED AREA. WEAR RUBBER OF BUTYL
GLOVES, DO NOT LET MOPAR PARTS CLEANER
COME IN CONTACT WITH EYES OR SKIN. AVOID
INGESTING THE CLEANER. WASH THOROUGHLY
AFTER USING CLEANER.
(b) While holding the throttle open, spray the
entire throttle body bore and the manifold side of the
throttle plate with Mopar Parts Cleaner. Only use
Mopar Parts Cleaner to clean the throttle body.
(c) Using a soft scuff pad, clean the top and bottom
of throttle body bore and the edges and manifold side
of the throttle blade. The edges of the throttle
blade and portions of the throttle bore that are
closest to the throttle blade when is closed,
must be free of deposits.
(d) Use compressed air to dry the throttle body.
(e) Inspect throttle body for foreign material.
(f) Install throttle body on manifold.
(g) Repeat steps 1 through 14. If the minimum air
flow is still not within specifications, the problem is
not caused by the throttle body.
(13) Shut off engine.
(14) Remove Air Metering Fitting #6457 from the
intake manifold PCV nipple. Reinstall the PCV valve
hose.
(15) Uncap the throttle body idle purge nipple and
connect the idle purge line.
(16) Remove DRB II.
60-WAY ENGINE CONTROLLER WIRING CONNEC-
TOR
Refer to the engine controller wiring connector dia-
gram (Fig. 21) for wire colors and cavity numbers.
IDLE SPECIFICATIONS
.
FUEL SYSTEM
14 - 103
Fig.
21
60—W
ay
Engine
Controller
W
iring
Connector
14 - 104
FUEL SYSTEM
.
3.3L MULTI-POINT FUEL INJECTION—SERVICE PROCEDURES
INDEX
page
page
Automatic Idle Speed (AIS) Motor
. . . . . . . . . . . . 106
Camshaft Sensor Service
. . . . . . . . . . . . . . . . . . 112
Canister Purge Solenoid Service
. . . . . . . . . . . . . 111
Crankshaft Timing Sensor
. . . . . . . . . . . . . . . . . . 111
Engine Controller Service
. . . . . . . . . . . . . . . . . . 111
Fuel Injector
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Fuel Injector Rail Assembly
. . . . . . . . . . . . . . . . 106
Fuel Pressure Regulator
. . . . . . . . . . . . . . . . . . . 109
Fuel System Pressure Release Procedure
. . . . . 106
Heated Oxygen Sensor (O
2
Sensor) Service
. . . . 112
Manifold Absolute Pressure (MAP) Sensor
. . . . . 110
Throttle Body
. . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Throttle Body Removal
. . . . . . . . . . . . . . . . . . . . 105
Throttle Position Sensor
. . . . . . . . . . . . . . . . . . . 106
THROTTLE BODY REMOVAL
(1) Disconnect negative battery cable.
(2) Remove the air cleaner to throttle body hose
clamp and the nut holding the air cleaner assembly to
the air cleaner bracket. Remove the air cleaner (Fig. 1).
(3) Remove throttle and the speed control cables.
(4) Disconnect electrical connectors from the auto-
matic idle speed (AIS) motor and throttle position
sensor (TPS).
(5) Disconnect vacuum hoses from throttle body.
(6) Remove throttle body to intake manifold attach-
ing nuts.
(7) Remove throttle body and gasket.
(8) Reverse the above procedure for installation.
THROTTLE BODY
When servicing throttle body components, always
reassemble components with new O-rings and seals
where applicable (Fig. 2). Never use lubricants on
O-rings or seals, damage may result. If assembly of
component is difficult, use water to aid assembly. Use
care when removing hoses to prevent damage to hose
or hose nipple.
Fig. 1 Throttle Body Assembly
Fig. 2 Throttle Body
.
FUEL SYSTEM
14 - 105
FUEL SYSTEM PRESSURE RELEASE PROCEDURE
The 3.3L MPI fuel system is under a constant
pressure of approximately 330 kPa (48 psi). Be-
fore servicing the fuel pump, fuel lines, fuel filter,
throttle body or fuel injectors, the fuel system
pressure must be released.
(1) Loosen fuel filler cap to release fuel tank pres-
sure.
(2) Disconnect injector wiring harness from engine
harness (Fig. 3).
(3) Connect a jumper wire between terminal Num-
ber 1 of one injector harness and engine ground.
(4) Connect a jumper wire to the positive terminal
Number 2 of the injector harness and touch the battery
positive post for no longer than 5 seconds. This releases
system pressure.
(5) Remove jumper wires.
(6) Continue fuel system service.
THROTTLE POSITION SENSOR
REMOVAL
(1) Disconnect negative cable from battery.
(2) Remove electrical connector from throttle posi-
tion sensor.
(3) Remove throttle position sensor mounting screws
(Fig. 4).
(4) Lift throttle position sensor off throttle shaft.
INSTALLATION
(1) Install throttle position sensor on throttle shaft.
Install mounting screws. Tighten screw to 2 N
Im (17
in. lbs.) torque.
(2) Connect electrical connector to throttle position
sensor.
(3) Connect negative cable to battery.
AUTOMATIC IDLE SPEED (AIS) MOTOR
REMOVAL
(1) Disconnect negative cable from battery.
(2) Remove electrical connector from automatic idle
speed (AIS) motor.
(3) Remove AIS motor mounting screws (Fig. 5).
(4) Remove AIS motor from throttle body. Ensure the
O-ring is removed with the AIS motor.
INSTALLATION
(1) The new AIS motor has a new O-ring installed on
it. If pintle measures more than 1 inch (25 mm) it must
be retracted. Use the DRB II AIS Motor Open/Close
Test to retract the pintle (battery must be connected.)
(2) Carefully place AIS motor into throttle body.
(3) Install mounting screws. Tighten screws to 2
N
Im (17 in. lbs.) torque.
(4) Connect electrical connector to AIS motor.
(5) Connect negative cable to battery.
FUEL INJECTOR RAIL ASSEMBLY
REMOVAL
(1) Perform fuel system pressure release procedure
before servicing or starting repairs. Refer to Fuel
System Pressure Release Procedure in this section.
(2) Disconnect negative cable from battery.
(3) Remove air cleaner and hose assembly (Fig. 1).
Fig. 3 Injector Harness Connector
Fig. 4 Servicing Throttle Position Sensor
Fig. 5 Servicing Automatic Idle Speed Motor
14 - 106
FUEL SYSTEM
.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст