Dodge Durango (DN). Manual — part 275
REMOVAL
It is easier to remove/install sensor from under
vehicle.
(1) Raise and support vehicle.
(2) Disconnect electrical connector at CMP sensor
(Fig. 30).
(3) Remove sensor mounting bolt (Fig. 30).
(4) Carefully pry sensor from cylinder head in a
rocking action with two small screwdrivers.
(5) Check condition of sensor o-ring.
INSTALLATION
(1) Clean out machined hole in cylinder head.
(2) Apply a small amount of engine oil to sensor
o-ring.
(3) Install sensor into cylinder head with a slight
rocking action. Do not twist sensor into position as
damage to o-ring may result.
CAUTION: Before tightening sensor mounting bolt,
be sure sensor is completely flush to cylinder head.
If sensor is not flush, damage to sensor mounting
tang may result.
(4) Install mounting bolt and tighten to 12 N·m
(106 in. lbs.) torque.
(5) Connect electrical connector to sensor.
(6) Lower vehicle.
DISTRIBUTORS—3.9/5.2/5.9L ENGINES
REMOVAL
CAUTION: Base ignition timing is not adjustable on
any engine. Distributors do not have built in centrif-
ugal or vacuum assisted advance. Base ignition
timing and timing advance are controlled by the
Powertrain Control Module (PCM). Because a con-
ventional timing light can not be used to adjust dis-
tributor position after installation, note position of
distributor before removal.
(1) Remove air cleaner assembly.
(2) Disconnect negative cable from battery.
(3) Remove distributor cap from distributor (two
screws).
(4) Mark the position of distributor housing in
relationship to engine or dash panel. This is done to
aid in installation.
(5) Before distributor is removed, the number one
cylinder must be brought to the Top Dead Center
(TDC) firing position.
(6) Attach a socket to the Crankshaft Vibration
Damper mounting bolt.
(7) Slowly rotate engine clockwise, as viewed from
front, until indicating mark on crankshaft vibration
damper is aligned to 0 degree (TDC) mark on timing
chain cover (Fig. 31).
(8) The distributor rotor should now be aligned to
the CYL. NO. 1 alignment mark (stamped) into the
camshaft position sensor (Fig. 32). If not, rotate the
crankshaft through another complete 360 degree
turn. Note the position of the number one cylinder
spark plug cable (on the cap) in relation to rotor.
Rotor should now be aligned to this position.
(9) Disconnect camshaft position sensor wiring
harness from main engine wiring harness.
(10) Remove
distributor
rotor
from
distributor
shaft.
Fig. 31 Damper-To-Cover Alignment Marks—Typical
1 – ALIGNMENT MARK
2 – TIMING CHAIN COVER MARKS
3 – CRANKSHAFT VIBRATION DAMPER
Fig. 32 Rotor Alignment Mark—3.9/5.2/5.9L Engines
1 – CAMSHAFT POSITION SENSOR ALIGNMENT MARK
2 – ROTOR
3 – DISTRIBUTOR
8D - 16
IGNITION SYSTEM
DN
REMOVAL AND INSTALLATION (Continued)
(11) Remove distributor holddown clamp bolt and
clamp (Fig. 33). Remove distributor from vehicle.
CAUTION:
Do not crank engine with distributor
removed. Distributor/crankshaft relationship will be
lost.
INSTALLATION
If engine has been cranked while distributor is
removed, establish the relationship between distribu-
tor shaft and number one piston position as follows:
Rotate crankshaft in a clockwise direction, as
viewed from front, until number one cylinder piston
is at top of compression stroke (compression should
be felt on finger with number one spark plug
removed). Then continue to slowly rotate engine
clockwise until indicating mark (Fig. 31) is aligned to
0 degree (TDC) mark on timing chain cover.
(1) Clean top of cylinder block for a good seal
between distributor base and block.
(2) Lightly oil the rubber o-ring seal on the distrib-
utor housing.
(3) Install rotor to distributor shaft.
(4) Position distributor into engine to its original
position. Engage tongue of distributor shaft with slot
in distributor oil pump drive gear. Position rotor to
the number one spark plug cable position.
(5) Install distributor holddown clamp and clamp
bolt. Do not tighten bolt at this time.
(6) Rotate the distributor housing until rotor is
aligned to CYL. NO. 1 alignment mark on the cam-
shaft position sensor (Fig. 32).
(7) Tighten clamp holddown bolt (Fig. 33) to 22.5
N·m (200 in. lbs.) torque.
(8) Connect camshaft position sensor wiring har-
ness to main engine harness.
(9) Install
distributor
cap.
Tighten
mounting
screws.
(10) Refer to the following, Checking Distributor
Position.
CHECKING DISTRIBUTOR POSITION
To verify correct distributor rotational position, the
DRB scan tool must be used.
WARNING: WHEN PERFORMING THE FOLLOWING
TEST, THE ENGINE WILL BE RUNNING. BE CARE-
FUL NOT TO STAND IN LINE WITH THE FAN
BLADES OR FAN BELT. DO NOT WEAR LOOSE
CLOTHING.
(1) Connect DRB scan tool to data link connector.
The data link connector is located in passenger com-
partment, below and to left of steering column.
(2) Gain access to SET SYNC screen on DRB.
(3) Follow directions on DRB screen and start
engine. Bring to operating temperature (engine must
be in “closed loop” mode).
(4) With engine running at idle speed, the words
IN RANGE should appear on screen along with 0°.
This indicates correct distributor position.
(5) If a plus (+) or a minus (-) is displayed next to
degree number, and/or the degree displayed is not
zero, loosen but do not remove distributor holddown
clamp bolt. Rotate distributor until IN RANGE
appears on screen. Continue to rotate distributor
until achieving as close to 0° as possible. After
adjustment, tighten clamp bolt to 22.5 N·m (200 in.
lbs.) torque.
The degree scale on SET SYNC screen of DRB is
referring to fuel synchronization only. It is not
referring to ignition timing. Because of this, do
not attempt to adjust ignition timing using this
method. Rotating distributor will have no effect on
ignition timing. All ignition timing values are con-
trolled by powertrain control module (PCM).
After testing, install air cleaner assembly.
IGNITION SWITCH AND KEY CYLINDER
The ignition key must be in the key cylinder for
cylinder removal.
KEY CYLINDER REMOVAL
(1) Disconnect negative cable from battery.
(2) If equipped with tilt column, remove tilt lever
by turning it counterclockwise.
(3) Remove upper and lower covers (shrouds) from
steering column (Fig. 34).
(4) If equipped with automatic transmission, place
shifter in PARK position.
Fig. 33 Distributor Holddown Clamp—3.9/5.2/5.9L
Engines
1 – CLAMP BOLT
2 – HOLDDOWN CLAMP
3 – DISTRIBUTOR HOUSING
DN
IGNITION SYSTEM
8D - 17
REMOVAL AND INSTALLATION (Continued)
(5) A retaining pin (Fig. 35) is located at side of
key cylinder assembly.
(a) Rotate key to RUN position.
(b) Press in on retaining pin while pulling key
cylinder from ignition switch.
IGNITION SWITCH REMOVAL
(1) Remove key lock cylinder. Refer to previous
steps.
(2) Remove 3 ignition switch mounting screws
(Fig. 36). Use tamper proof torx bit (Snap-On
t
SDMTR10 or equivalent) to remove screws.
(3) Gently pull switch away from column. Release
connector locks on 7-terminal wiring connector at
ignition switch and remove connector (Fig. 37).
(4) Release connector lock on 4-terminal halo lamp
wiring connector and remove connector (Fig. 37).
(5) Disconnect electronic “PRNDL” from switch (if
equipped).
IGNITION SWITCH AND KEY CYLINDER
INSTALLATION
If installing ignition key lock cylinder only,
proceed to following steps 2, 3 and 4. Also refer to fol-
lowing steps 12 through 18. If installing both switch
and key cylinder, refer to steps 1 through 18.
(1) Rotate flag (Fig. 38) on rear of ignition switch
until in RUN position. This step must be done to
allow tang (Fig. 39) on key cylinder to fit into slots
(Fig. 36) within ignition switch.
Fig. 34 Shroud Removal/Installation—Typical
1 – NUT
2 – STEERING WHEEL
3 – TILT LEVER
4 – UPPER SHROUD
5 – PANEL BRACKET
6 – SPACER
7 – NUT
8 – LOWER SHROUD
9 – CLOCK SPRING
Fig. 35 Retaining Pin
1 – IGNITION SWITCH
2 – KEY/KEY CYLINDER (RUN POSITION)
3 – RETAINING PIN
Fig. 36 Switch Mounting Screws
1 – IGNITION SWITCH
2 – SLOTS NOT ALIGNED
3 – SLOTS ALIGNED
4 – IGNITION SWITCH MOUNTING SCREWS (3)
8D - 18
IGNITION SYSTEM
DN
REMOVAL AND INSTALLATION (Continued)
(2) With key into ignition key cylinder, rotate key
clockwise until retaining pin can be depressed (Fig.
39) or (Fig. 40).
(3) Install key cylinder into ignition switch by
aligning retaining pin into retaining pin slot (Fig.
40). Push key cylinder into switch until retaining pin
engages. After pin engages, rotate key to OFF or
LOCK position.
(4) Check for proper retention of key cylinder by
attempting to pull cylinder from switch.
(5) Automatic Transmission Only: Before attaching
ignition switch to steering column, the transmission
Fig. 37 Ignition Switch and Halo Lamp Connectors
1 – KEY-IN SWITCH & HALO LIGHT
2 – MULTI-FUNCTION SWITCH
3 – TURN SIGNAL SWITCH & LEVER
4 – IGNITION SWITCH
5 – SPEED CONTROL
Fig. 38 Flag in RUN Position
1 – REAR OF IGNITION SWITCH
2 – PARK LOCK DOWEL PIN
(RUN POSITION)
3 – FLAG
(RUN POSITION)
Fig. 39 Key Cylinder—Rear View
1 – IGNITION KEY LOCK CYLINDER
2 – PUSH PIN
3 – RETAINING PIN SLOT
4 – RETAINING PIN
5 – DRIVER
Fig. 40 Installing Key Cylinder Into Switch
1 – IGNITION SWITCH
2 – DRIVER
3 – IGNITION KEY LOCK CYLINDER
4 – RETAINING PIN
5 – RETAINING PIN SLOT
DN
IGNITION SYSTEM
8D - 19
REMOVAL AND INSTALLATION (Continued)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст