Chrysler New Yorker. Manual — part 341
INSTALLATION
(1) Install LDP to EVAP Canister. (Fig. 9).
(2) Install EVAP canister to Bracket (Fig. 8).
(3) Install 2 nuts to EVAP canister bracket.
(4) Connect hoses.
(5) Install fuel tank refer to Group 14, Fuel Deliv-
ery.
(6) Connect negative battery cable.
PROPORTIONAL PURGE SOLENOID VALVE
The solenoid attaches to a bracket near the air
cleaner (Fig. 10). The solenoid will not operate unless
it is installed correctly.
REMOVAL
(1) Disconnect electrical connector from solenoid.
(2) Disconnect vacuum tubes from solenoid.
(3) Remove solenoid from bracket.
INSTALLATION
The top of the solenoid has TOP printed on it. The
solenoid will not operate unless it is installed cor-
rectly.
(1) Install solenoid on bracket.
(2) Connect vacuum tube to solenoid.
(3) Connect electrical connector to solenoid.
Fig. 10 Proportional Purge Solenoid Valve
300M
EMISSION CONTROL SYSTEMS
25 - 17
REMOVAL AND INSTALLATION (Continued)
EXHAUST GAS RECIRCULATION (EGR) SYSTEM
INDEX
page
page
DESCRIPTION AND OPERATION
EXHAUST GAS RECIRCULATION (EGR) . . . . . . 18
REMOVAL AND INSTALLATION
EGR TUBE LOWER—2.7L . . . . . . . . . . . . . . . . . 20
EGR TUBE UPPER—2.7L . . . . . . . . . . . . . . . . . . 20
EGR TUBE—3.2/3.5L . . . . . . . . . . . . . . . . . . . . . 21
EGR VALVE—2.7L . . . . . . . . . . . . . . . . . . . . . . . 18
EGR VALVE—3.2/3.5L . . . . . . . . . . . . . . . . . . . . 19
SPECIFICATIONS
TORQUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
DESCRIPTION AND OPERATION
EXHAUST GAS RECIRCULATION (EGR)
The EGR valve consists of three major components.
First there is the pintle, valve seat, and housing
which contains and regulates the gas flow. Second
there is the armature, return spring, and solenoid
coil to provide the operating force to regulate the
flow by changing the pintle position. The solenoid coil
assembly is in parallel with a diode and connects to
the two connectors in the connector assembly. The
third major component which senses pintle position
and is connected to the three connectors in the elec-
trical connector.
The exhaust gas recirculation flow is determined
by the engine controller. For a given set of conditions,
the engine controller knows the ideal exhaust gas
recirculation flow to optimize NOx and fuel economy
as a function of the pintle position. Pintle position is
obtained from the position sensor and the engine con-
troller by adjusting the duty cycle of 128 Hz power
supplied to the solenoid coil to obtain the correct
position.
REMOVAL AND INSTALLATION
EGR VALVE—2.7L
REMOVAL
(1) Disconnect negative battery cable.
(2) Remove air inlet tube and resonator.
(3) Remove throttle cable bracket and reposition.
(4) Remove EGR tube mounting screws at intake
manifold plenum.
(5) Disconnect electrical connector from solenoid.
(6) The EGR valve attaches to the rear of the right
cylinder head.
(7) Remove EGR upper tube screws at EGR valve.
(8) Remove EGR valve mounting screws.
(9) Remove
screws
from
EGR
lower
tube
at
exhaust manifold.
(10) Remove EGR valve and lower tube as an
assembly.
(11) Clean gasket surfaces. Discard old gasket. If
necessary, clean EGR passages.
INSTALLATION
(1) Loosely install EGR valve and lower tube, use
a new gasket between tube and EGR valve.
(2) Install EGR valve to rear of Cylinder head, do
not tighten screws.
(3) Loosely install screws to lower EGR tube to
exhaust manifold
(4) Install rubber silicone seals on intake manifold
end of EGR tube.
(5) Install upper tube into the intake manifold,
being careful to be sure silicone rubber seals is cor-
rectly installed and undamaged..
(6) Install new gasket between the EGR valve and
tube and install bolts.
(7) Tighten the EGR upper tube to intake manifold
plenum screws to 9 N·m (80 in. lbs.) torque.
(8) Tighten the EGR tube’s to EGR valve bolts to
11 N·m (95 in. lbs.) torque.
(9) Tighten EGR lower tube to exhaust manifold
screws to 22 N·m (200 in. lbs.) torque.
(10) Tighten EGR valve to cylinder head screws to
22 N·m (200 in. lbs.) torque.
(11) Attach electrical connector to solenoid.
(12) Install the throttle cable bracket to intake
manifold.
(13) Install air inlet tube and resonator.
(14) Connect negative battery cable.
25 - 18
EMISSION CONTROL SYSTEMS
300M
EGR VALVE—3.2/3.5L
The EGR tube attaches to the bottom of the intake
manifold plenum beside the throttle body (Fig. 2).
REMOVAL
(1) Disconnect negative battery cable.
(2) Remove air inlet tube and resonator.
(3) Remove EGR tube mounting clips at intake
manifold plenum (Fig. 3).
(4) Remove Intake Plenum, refer to Group 11
Intake and Exhaust Systems.
(5) Remove the fuel rail, refer to Group 14 Fuel
Delivery.
(6) Disconnect
electrical
connector
from
EGR
valve.
(7) Remove EGR tube mounting screws at EGR
valve.
When removing EGR upper tube assembly being
careful not to drop the silicone rubber seals in the
intake manifold. Clean gasket surfaces on the EGR
valve. Note that any loose dirt can lodge between the
pintle and the seat and cause valve leakage that will
give a rough idle and depressed manifold vacuum.
(8) Remove EGR tube.
(9) The EGR valve attaches to the rear of the right
cylinder head.
(10) Remove EGR valve mounting screws.
(11) Clean gasket surfaces. Discard old gasket. If
necessary, clean EGR passages.
INSTALLATION
(1) Loosely install EGR valve and new gasket on
cylinder head.
(2) Using new gaskets, loosely install the EGR
tube and mounting screws. Make sure that the tube
is parallel with the mounting surface of the EGR
valve (Fig. 4).
Fig. 1 EGR Valve—2.7 L
Fig. 2 Intake Manifold EGR Port Location
Fig. 3 EGR Tube
Fig. 4 Mounting the EGR Tube to EGR Valve
300M
EMISSION CONTROL SYSTEMS
25 - 19
REMOVAL AND INSTALLATION (Continued)
(3) Tighten the EGR tube to EGR valve screws to
11 N·m (95 in. lbs.) torque.
(4) Install rubber silicone seals on intake manifold
end of EGR tube.
(5) Attach electrical connector to solenoid.
Install fuel rail, refer to Group 14, Fuel Delivery.
(6) Install upper tube into the intake manifold,
being careful to be sure silicone rubber seals is cor-
rectly installed and undamaged. Install Intake Ple-
num refer to Group 11, Intake and Exhaust System.
(7) Install clips for the EGR tube to intake mani-
fold plenum.
(8) Tighten EGR valve to cylinder head screws to
22 N·m (200 in. lbs.) torque.
(9) Install air inlet tube and resonator.
(10) Connect negative battery cable.
EGR TUBE UPPER—2.7L
The EGR tube attaches to the intake manifold ple-
num on both sides of the throttle body and the EGR
valve (Fig. 5).
REMOVAL
(1) Disconnect negative battery cable.
(2) Remove air inlet tube and resonator.
(3) Remove throttle cable bracket and reposition.
(4) Remove EGR tube mounting screws at intake
manifold plenum (Fig. 6).
(5) Remove EGR tube mounting screws at EGR
valve.
(6) Remove EGR upper tube.
(7) When removing EGR upper tube assembly
being careful not to drop the silicone rubber seals in
the intake manifold. Clean gasket surfaces on the
EGR valve. Note that any loose dirt can lodge
between the pintle and the seat and cause valve
leakage that will give a rough idle and depressed
manifold vacuum.
INSTALLATION
(1) Install rubber silicone seals on intake manifold
end of EGR tube.
(2) Install upper tube into the intake manifold,
being careful to be sure silicone rubber seals is cor-
rectly installed and undamaged..
(3) Install new gasket between the EGR valve and
tube and install bolts.
(4) Tighten the EGR upper tube to intake manifold
plenum screws to 9 N·m (80 in. lbs.) torque.
(5) Tighten the EGR upper tube to EGR valve
bolts to 11 N·m (95 in. lbs.) torque.
(6) Install the throttle cable bracket to intake
manifold.
(7) Install air inlet tube and resonator.
(8) Connect negative battery cable.
EGR TUBE LOWER—2.7L
REMOVAL
(1) Disconnect negative battery cable.
(2) Remove air inlet tube and resonator.
(3) Remove EGR tube mounting screws at EGR
valve (Fig. 7).
(4) Remove EGR tube mounting screws at exhaust
manifold.
INSTALLATION
(1) Install new gasket between the EGR valve and
tube and install bolts.
(2) Install new gasket between the exhaust mani-
fold and tube and install bolts.
Fig. 5 EGR Tube—2.7L
Fig. 6 EGR Tube at Intake Manifold
25 - 20
EMISSION CONTROL SYSTEMS
300M
REMOVAL AND INSTALLATION (Continued)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст