tow DODGE RAM 1500 1998 2.G Owners Manual

ELECTRIC BRAKE PROVISION-4WAY
CAV CIRCUIT FUNCTION
A A400 14TN/RD FUSED B(+)
B B40 14DG TRAILER TOW BRAKE B(+)
C L50 18WT/TN BRAKE LAMP SWITCH OUTPUT
D Z998 18BK GROUND
ELECTRIC THROTTLE CONTROL MODULE - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1 K22 18BR/OR TP NO. 1 SIGNAL
2 F855 18PK/YL 5 VOLT SUPPLY
3 K447 18TN/YL ETC MOTOR (+)
4 K122 18BR/DG TP NO. 2 SIGNAL
5 K448 18TN/OR ETC MOTOR (-)
6 K922 18BR/DB TP SENSOR RETURN
ENGINE CONTROL MODULE C1 (DIESEL) - 60 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3- -
4 D72 18WT/LB CCD BUS (+)
5 D71 18WT/DB CCD BUS (-)
6 K65 18BR/LB FUEL PUMP RELAY RETURN
7 K20 18BR/GY GEN FIELD CONTROL
8- -
9- -
10 - -
11 K2 18TN/BK (A/T) ECT SIGNAL
11 K2 18VT/OR (M/T) ECT SIGNAL
12 K181 18BR/YL FUEL PUMP DRIVER
13 - -
14 K22 18BR/WT (A/T) TP SIGNAL
14 K23 18DB/WT (M/T) APPS NO. 1 SIGNAL
15 K21 18DB/LG INTAKE AIR TEMPERATURE SENSOR SIGNAL
16 - -
16 K29 18WT/BR (M/T) APPS NO. 2 SIGNAL
17 - -
18 - -
19 K31 18BR FUEL PUMP RELAY CONTROL
20 - -
21 - -
22 K24 18LB/BR (A/T) CKP SIGNAL
22 K24 18BR/LB (M/T) CKP SIGNAL
23 K914 18RD/WT (A/T) SENSOR GROUND
23 K914 18BR/WT (M/T) SENSOR GROUND
24 K44 18DB/GY CMP SIGNAL
25 K668 18LG (A/T) SUPPLY VOLTAGE
25 K688 18BR (M/T) SUPPLY VOLTAGE
8W - 80 - 58 8W-80 CONNECTOR PIN-OUTSDR

ENGINE CONTROL MODULE C2 (DIESEL) - 50 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3 K615 18VT/WT INLET AIR TEMPERATURE SENSE
3 K615 18BR/WT (M/T) INLET AIR TEMPERATURE SENSE
4 V35 18VT/OR (A/T) S/C VENT CONTROL
5 K176 18BR/OR INTAKE AIR HEATER RELAY NO 2 CONTROL
6 K174 18BR/YL INTAKE AIR HEATER RELAY NO 1 CONTROL
7 V32 18VT/YL (A/T) SPEED CONTROL SUPPLY
8- -
9 T41 18YL/DB (A/T) PARK/NEUTRAL POSITION SWITCH SENSE (T41)
10 K161 18BR/LB FAN SPEED SENSOR
11 B22 18DG/YL VEHICLE SPEED SENSOR SIGNAL NO. 1
12 G6 18VT/GY OIL PRESSURE SIGNAL
13 T6 18DG (A/T) TOW/HAUL OVERDRIVE OFF SWITCH SENSE
14 T118 18DG (A/T) GOVERNOR PRESSURE SOLENOID CONTROL
15 T9 18DG/TN (A/T) 3-4 SOLENIOD CONTROL
16 D21 18WT/BR SCI TRANSMIT (PCM)
16 D21 18PK (M/T) SCI TRANSMIT
17 - -
18 T38 18YL/BR (A/T) GOVERNOR PRESSURE SENSOR SIGNAL
19 D20 18WT/LG SCI RECEIVE (PCM)
20 A209 16RD FUSED B(+)
21 Z902 16BK GROUND
22 - -
23 F856 18YL/PK 5 VOLT SUPPLY
24 K900 18DB/DG SENSOR GROUND
25 T75 18YL/LB (A/T) TORQUE CONVERTER CLUTCH SOLENOID CONTROL
26 N4 18DB/WT FUEL LEVEL SENSOR SIGNAL
27 - -
28 D25 18WT/VT PCI BUS
29 T54 18DG/OR (A/T) TRANSMISSION TEMPERATURE SENSOR SIGNAL
30 A209 16RD FUSED B(+)
31 T515 18YL/DB (A/T) TRANSMISSION CONTROL RELAY CONTROL
32 F202 18PK/GY FUSED IGNITION SWITCH OUTPUT (RUN-START)
33 K854 18VT/BR (M/T) 5 VOLT SUPPLY
34 V36 18VT/YL (A/T) S/C VACUUM CONTROL
35 K616 18BR/YL INLET AIR PRESSURE SENSE
36 V32 18VT/YL (M/T) SPEED CONTROL SUPPLY
37 B29 18DG/WT BRAKE SWITCH SIGNAL
38 - -
39 - -
40 A209 16RD FUSED B(+)
41 C13 18LB/OR A/C CLUTCH RELAY CONTROL
42 - -
43 K160 18BR/OR PARK LOCKOUT SOLENOID CONTROL
44 T14 18DG/BR (A/T) OUTPUT SPEED SENSOR SIGNAL
45 T13 18DG/VT (A/T) SENSOR GROUND
46 V37 18VT S/C SWITCH NO. 1 SIGNAL
47 K25 18DB/VT BATT TEMP SIGNAL
48 K400 18BR/VT (M/T) APPS NO.2 RETURN
49 Z902 16BK GROUND
50 Z902 16BK GROUND
8W - 80 - 60 8W-80 CONNECTOR PIN-OUTSDR

INTAKE AIR TEMPERATURE SENSOR (GAS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K900 18DB/DG SENSOR GROUND
2 K21 18DB/LG IAT SIGNAL
INTAKE AIR TEMPERATURE/MANIFOLD ABSOLUTE PRESSURE SENSOR (DIESEL)-4WAY
CAV CIRCUIT FUNCTION
A K916 18BR/OR SENSOR GROUND
B K21 18DB/LG INTAKE AIR TEMPERATURE SENSOR SIGNAL
C F855 18PK/YL 5 VOLT SUPPLY
D K37 18LB (A/T) BOOST PRESSURE SENSOR SIGNAL
D K37 18BR/OR (M/T) BOOST PRESSURE SENSOR SIGNAL
INTEGRATED POWER MODULE C1 - 26 WAY
CAV CIRCUIT FUNCTION
1 A960 14RD (DIESEL) FUSED B(+)
1 A16 16RD/BR (NGC) FUSED B(+)
2 F21 20PK/DG FUSED IGNITION SWITCH OUTPUT (RUN-START)
3- -
4 F500 20DG/PK FUSED IGNITION SWITCH OUTPUT (RUN)
5 L673 18YL TRAILER TOW LEFT TURN RELAY OUTPUT
6- -
7 L674 18LG TRAILER TOW RIGHT TURN RELAY OUTPUT
8 A981 14RD FUSED B(+)
9 A114 18GY/RD FUSED B(+)
10 L70 18WT/GY FUSED PARK LAMP RELAY OUTPUT
11 F951 16PK/LG FUSED IGNITION SWITCH OUTPUT (RUN-START)
12 A941 18RD FUSED B(+)
13 A919 20RD FUSED B(+)
14 X2 18DG/OR HORN RELAY OUTPUT
15 - -
16 A103 18GY/RD FUSED B(+)
17 L678 18BR PARK LAMP RELAY OUTPUT
18 - -
19 L7 18WT/YL FUSED PARK LAMP RELAY OUTPUT
20 - -
21 - -
22 - -
23 - -
24 - -
25 - -
26 - -
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 73

POWERTRAIN CONTROL MODULE C4 (NGC) - GREEN 38 WAY
CAV CIRCUIT FUNCTION
1 T60 18YL/GY OVERDRIVE SOLENOID CONTROL
2 T259 18YL/DG 4C SOLENOID CONTROL
3- -
4 T118 18DG MS SOLENOID CONTROL
5- -
6 T219 18YL/LG 2C SOLENOID CONTROL
7- -
8 T59 18YL/LB UNDERDRIVE SOLENOID CONTROL
9- -
10 T20 18DG/WT L/R SOLENOID CONTROL
11 T140 18YL/GY PRESSURE CONTROL SOLENOID CONTROL
12 Z908 18BK GROUND
13 Z977 18BK GROUND
14 Z904 18BK (A/T) GROUND
15 T1 18DG/LB TRS T1 SENSE
16 T3 18DG/DB TRS T3 SENSE
17 T6 18DG TOW/HAUL OVERDRIVE OFF SWITCH SENSE
18 T515 20YL/DB TRANSMISSION CONTROL RELAY CONTROL
19 T16 18YL/OR TRANSMISSION CONTROL RELAY OUTPUT
20 T48 18BR/YL 4C PRESSURE SWITCH SENSE
21 T29 18YL/WT UNDERDRIVE PRESSURE SWITCH SENSE
22 T9 18DG/TN OVERDRIVE PRESSURE SWITCH SENSE
23 - -
24 - -
25 - -
26 T4 18DG/LB TRS T2 SENSE
27 - -
28 T16 18YL/OR TRANSMISSION CONTROL RELAY OUTPUT
29 T50 18YL/TN LOW/REVERSE PRESSURE SWITCH SENSE
30 T147 18DG/YL 2C PRESSURE SWITCH SENSE
31 T38 18YL/BR LINE PRESSURE SENSOR SIGNAL
32 T14 18DG/BR OUTPUT SPEED SENSOR SIGNAL
33 T52 18DG/OR INPUT SPEED SENSOR SIGNAL
34 T13 18DG/VT SPEED SENSOR GROUND
35 T54 18DG/OR TRANSMISSION TEMPERATURE SENSOR SIGNAL
36 - -
37 T42 18DG/YL TRS T42 SENSE
38 T16 18YL/OR TRANSMISSION CONTROL RELAY OUTPUT
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 91

THROTTLE POSITION SENSOR (4.7L)-3WAY
CAV CIRCUIT FUNCTION
1 F855 18PK/YL 5 VOLT SUPPLY
2 K22 18BR/OR TP NO. 1 SIGNAL
3 K900 18DB/DG SENSOR GROUND
TOW/HAUL OVERDRIVE SWITCH - WHITE 2 WAY
CAV CIRCUIT FUNCTION
1 T6 20DG TOW/HAUL OVERDRIVE OFF SWITCH SENSE
2 Z71 20LB/BK GROUND
TRAILER TOW CONNECTOR-4WAY
CAV CIRCUIT FUNCTION
1 Z999 14BK GROUND
2 L678 18BR PARK LAMP RELAY OUTPUT
3 L673 18YL TRAILER TOW LEFT TURN RELAY OUTPUT
4 L674 18LG TRAILER TOW RIGHT TURN RELAY OUTPUT
TRAILER TOW CONNECTOR-ADD ON - 10 WAY
CAV CIRCUIT FUNCTION
1- -
2 L674 18LG TRAILER TOW RIGHT TURN RELAY OUTPUT
3 L1 18WT/LG BACKUP LAMP FEED
4 A100 14RD/VT FUSED B(+)
5 L678 18BR PARK LAMP RELAY OUTPUT
6- -
7 B40 14DG TRAILER TOW BRAKE B(+)
8 Z999 14BK GROUND
9 Z999 14BK GROUND
10 L673 18YL TRAILER TOW LEFT TURN RELAY OUTPUT
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 99

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Speed Control Switch-Right (ETC) WT At Steering Wheel N/S
Starter Solenoid Left Engine 23
Tail/Stop/Turn Signal Lamp-Left BK At Lamp 50, 51
Tail/Stop/Turn Signal Lamp-Right BK At Lamp 50, 51
Throttle Position Sensor NAT Throttle Body 6
Trailer Tow Connector BK At Trailer Hitch 51
Trailer Tow Connector-Add On BK At Trailer Hitch 51, 53
Transfer Case Control Module C1 BK Left Side of Instrument Panel 35, 38
Transfer Case Control Module C2 GY Left Side of Instrument Panel 35, 38
Transfer Case Control Module C3 BK Left Side of Instrument Panel 35, 38
Transfer Case Mode Sensor BK Left Front Side of Transfer Case 13, 14, 16, 20
Transfer Case Position Sensor BK Front Middle of Transfer Case 20
Transfer Case Selector Switch BK Center of Instrument Panel 11, 12, 33, 35, 36
Transfer Case Shift Motor BK Left Rear of Transmission 13, 14, 20
Transmission Range Sensor BK Left side of Transmission 11, 14
Transmission Solenoid Assembly BK Left Side of Transmission 14, 11
Transmission Solenoid/TRS
Assembly (3.7L/4.7L)BK Left Side of Transmission 15, 16
Underhood Lamp BK Underside of Hood 29
Vacuum Pump (Diesel) Right Rear Engine Compartment 21
Vistronic Fan Drive Front Engine Compartment 28
Washer Fluid Level Switch BK At Reservoir 21, 23, 26, 28
Washer Pump Motor-Front BK At Washer Fluid Reservoir 21, 23, 26, 28
Water In Fuel Sensor (Diesel) BK Right Side Engine 10
Wheel Speed Sensor-Left Front BK Left Rear Lower Side of Engine
Compartment22, 29
Wheel Speed Sensor-Rear BK Right Rear of Body 51
Wheel Speed Sensor-Right Front GY Right Rear Lower Side of Engine
Compartment21
Wiper Motor-Front BK Left Side of Cowl 22, 25
8W - 91 - 8 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONDR
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

SPECIAL TOOLS
POWER DISTRIBUTION SYSTEMS
CIGAR LIGHTER OUTLET
DESCRIPTION
On models equipped a cigar lighter outlet is
installed to the left of the center stack area in the
lower instrument panel. The cigar lighter outlet is
secured by a snap fit within the bezel.
The cigar lighter outlet, plastic cap and the knob
and heating element unit are available for service
replacement. These components cannot be repaired
and, if faulty or damaged, they must be replaced.
OPERATION
The cigar lighter consists of two major components:
a knob and heating element unit, and the cigar
lighter base or outlet shell. The receptacle shell is
connected to ground, and an insulated contact in the
bottom of the shell is connected to battery current.
The cigar lighter receives battery voltage from a fuse
in the junction block when the ignition switch is in
the Accessory or Run positions.
The cigar lighter knob and heating element are
encased within a spring-loaded housing, which also
features a sliding protective heat shield. When the
knob and heating element are inserted in the outlet
shell, the heating element resistor coil is grounded
through its housing to the outlet shell. If the cigar
lighter knob is pushed inward, the heat shield slides
up toward the knob exposing the heating element,
and the heating element extends from the housing
toward the insulated contact in the bottom of the
outlet shell.
Two small spring-clip retainers are located on
either side of the insulated contact inside the bottom
of the outlet shell. These clips engage and hold the
heating element against the insulated contact longenough for the resistor coil to heat up. When the
heating element is engaged with the contact, battery
current can flow through the resistor coil to ground,
causing the resistor coil to heat.
When the resistor coil becomes sufficiently heated,
excess heat radiates from the heating element caus-
ing the spring-clips to expand. Once the spring-clips
expand far enough to release the heating element,
the spring-loaded housing forces the knob and heat-
ing element to pop back outward to their relaxed
position. When the cigar lighter knob and element
are pulled out of the outlet shell, the protective heat
shield slides downward on the housing so that the
heating element is recessed and shielded around its
circumference for safety.
DIAGNOSIS AND TESTING - CIGAR LIGHTER
OUTLET
For complete circuit diagrams, refer toWiring
Diagrams.
(1) Check the fused B(+) fuse in the integrated
power module. If OK, go to Step 2. If not OK, repair
the shorted circuit or component as required and
replace the faulty fuse.
(2) Turn the ignition switch to the Run position.
Check for battery voltage at the fused B(+) fuse in
the integrated power module. If OK, go to Step 3. If
not OK, repair the open or short as required.
(3) Remove the cigar lighter knob and element
from the cigar lighter outlet shell. Check for continu-
ity between the inside circumference of the cigar
lighter outlet shell and a good ground. there should
be continuity. If OK, go to Step 4. If not OK, go to
Step 5.
(4) Turn the ignition switch to the Run position.
Check for battery voltage at the insulated contact
located at the back of the cigar lighter outlet shell. If
OK, replace the faulty cigar lighter knob and ele-
ment. If not OK, go to Step 5.
(5) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Check for continuity between the ground circuit cav-
ity of the cigar lighter wire harness connector and a
good ground. There should be continuity. If OK, go to
Step 6. If not OK, repair the open ground circuit to
ground as required.
(6) Connect the battery negative cable. Turn the
ignition switch to the Accessory or Run positions.
Check for battery voltage at the fused B(+) circuit
cavity of the cigar lighter wire harness connector. If
OK, replace the faulty cigar lighter outlet. If not OK,
repair the open fused B(+) circuit to the integrated
power module fuse as required.Terminal Pick Kit 6680
8W - 97 - 2 8W-97 POWER DISTRIBUTIONDR
POWER DISTRIBUTION (Continued)

becomes transparent and the fuse that has been
assigned the IOD designation becomes only another
Fused B(+) circuit fuse.
The IOD fuse can be used by the vehicle owner as
a convenient means of reducing battery depletion
when a vehicle is to be stored for periods not to
exceed about thirty days. However, it must be
remembered that disconnecting the IOD fuse will not
eliminate IOD, but only reduce this normal condition.
If a vehicle will be stored for more than about thirty
days, the battery negative cable should be discon-
nected to eliminate normal IOD; and, the battery
should be tested and recharged at regular intervals
during the vehicle storage period to prevent the bat-
tery from becoming discharged or damaged.
REMOVAL
The Ignition-Off Draw (IOD) fuse is disconnected
from Integrated Power Module fuse cavity # 51 when
the vehicle is shipped from the assembly plant.
Dealer personnel must reconnect the IOD fuse when
the vehicle is being prepared for delivery in order to
restore full electrical system operation.
(1) Turn the ignition switch to the Off position.
(2) Remove the Integrated Power Module cover.
(3) Grasp the outer tabs of the IOD fuse holder
unit in fuse cavity # 51 between the thumb and fore-
finger and pull the unit firmly upward.
(4) Install the Integrated Power Module cover.
INSTALLATION
(1) Turn the ignition switch to the Off position.
(2) Remove the Integrated Power Module cover.
(3) To install the IOD fuse, use a thumb to press
the IOD fuse holder unit in fuse cavity # 51 firmly
into the Integrated Power Module.
(4) Install the Integrated Power Module cover.
POWER OUTLET
DESCRIPTION
Two power outlets are utilized on this model. One
in the instrument panel center lower bezel and the
other in the center console. The power outlet bases
are secured by a snap fit within the instrument
panel or trim panel. A plastic protective cap snaps
into the power outlet base when the power outlet is
not being used, and hangs from the power outlet base
mount by an integral bail strap while the power out-
let is in use.The power outlet receptacle unit and the accessory
power outlet protective cap are available for service.
The power outlet receptacle cannot be repaired and,
if faulty or damaged, it must be replaced.
OPERATION
The power outlet base or receptacle shell is con-
nected to ground, and an insulated contact in the
bottom of the shell is connected to battery current.
The power outlet receives battery voltage from a fuse
in the integrated power module at all times.
While the power outlet is very similar to a cigar
lighter base unit, it does not include the two small
spring-clip retainers inside the bottom of the recepta-
cle shell that are used to secure the cigar lighter
heating element to the insulated contact.
DIAGNOSIS AND TESTING - POWER OUTLET
For complete circuit diagrams, refer toWiring
Diagrams.
(1) Check the fused B(+) fuse in the integrated
power module. If OK, go to Step 2. If not OK, repair
the shorted circuit or component as required and
replace the faulty fuse.
(2) Check for battery voltage at the fused B(+) fuse
in the integrated power module. If OK, go to Step 3.
If not OK, repair the open fused B(+) circuit to the
battery as required.
(3) Remove the plastic protective cap from the
power outlet receptacle. Check for continuity between
the inside circumference of the power outlet recepta-
cle and a good ground. There should be continuity. If
OK, go to Step 4. If not OK, go to Step 5.
(4) Check for battery voltage at the insulated con-
tact located at the back of the power outlet recepta-
cle. If not OK, go to Step 5.
(5) Disconnect and isolate the battery negative
cable. Remove the power outlet receptacle from the
instrument panel. Disconnect the wire harness con-
nector from the power outlet receptacle. Check for
continuity between the ground circuit cavity of the
power outlet wire harness connector and a good
ground. There should be continuity. If OK, go to Step
6. If not OK, repair the open ground circuit to ground
as required.
(6) Connect the battery negative cable. Check for
battery voltage at the fused B(+) circuit cavity of the
power outlet wire harness connector. If OK, replace
the faulty power outlet receptacle. If not OK, repair
the open fused B(+) circuit to the integrated power
module fuse as required.
DR8W-97 POWER DISTRIBUTION 8W - 97 - 7
IOD FUSE (Continued)

of oil and coolant. Can be used on threaded and
machined parts under all temperatures. This mate-
rial is used on engines with multi-layer steel (MLS)
cylinder head gaskets. This material also will pre-
vent corrosion. MopartGasket Sealant is available in
a 13 oz. aerosol can or 4oz./16 oz. can w/applicator.
FORM-IN-PLACE GASKET AND SEALER
APPLICATION
Assembling parts using a form-in-place gasket
requires care but it's easier than using precut gas-
kets.
MopartGasket Maker material should be applied
sparingly 1 mm (0.040 in.) diameter or less of sealant
to one gasket surface. Be certain the material sur-
rounds each mounting hole. Excess material can eas-
ily be wiped off. Components should be torqued in
place within 15 minutes. The use of a locating dowel
is recommended during assembly to prevent smear-
ing material off the location.
MopartEngine RTV GEN II or ATF RTV gasket
material should be applied in a continuous bead
approximately 3 mm (0.120 in.) in diameter. All
mounting holes must be circled. For corner sealing, a
3.17 or 6.35 mm (1/8 or 1/4 in.) drop is placed in the
center of the gasket contact area. Uncured sealant
may be removed with a shop towel. Components
should be torqued in place while the sealant is still
wet to the touch (within 10 minutes). The usage of a
locating dowel is recommended during assembly to
prevent smearing material off the location.
MopartGasket Sealant in an aerosol can should be
applied using a thin, even coat sprayed completely
over both surfaces to be joined, and both sides of a
gasket. Then proceed with assembly. Material in a
can w/applicator can be brushed on evenly over the
sealing surfaces. Material in an aerosol can should be
used on engines with multi-layer steel gaskets.
STANDARD PROCEDURE - ENGINE GASKET
SURFACE PREPARATION
To ensure engine gasket sealing, proper surface
preparation must be performed, especially with the
use of aluminum engine components and multi-layer
steel cylinder head gaskets.
Neveruse the following to clean gasket surfaces:
²Metal scraper
²Abrasive pad or paper to clean cylinder block
and head
²High speed power tool with an abrasive pad or a
wire brush (Fig. 2)
NOTE: Multi-Layer Steel (MLS) head gaskets require
a scratch free sealing surface.
Only use the following for cleaning gasket surfaces:²Solvent or a commercially available gasket
remover
²Plastic or wood scraper (Fig. 2)
²Drill motor with 3M RolocŸ Bristle Disc (white
or yellow) (Fig. 2)
CAUTION: Excessive pressure or high RPM (beyond
the recommended speed), can damage the sealing
surfaces. The mild (white, 120 grit) bristle disc is
recommended. If necessary, the medium (yellow, 80
grit) bristle disc may be used on cast iron surfaces
with care.
REMOVAL
(1) Disconnect the battery negative cable.
(2) Remove hood. Mark hood hinge location for
reinstallation.
(3) Remove air cleaner assembly.
(4) Remove radiator core support bracket.
(5) Remove fan shroud with viscous fan assembly.
(6) Remove drive belt.
(7) Remove A/C compressor and secure away from
engine.
(8) Remove generator and secure away from
engine.
NOTE: Do NOT remove the phenolic pulley from the
P/S pump. It is not required for P/S pump removal.
(9) Remove power steering pump with lines
attached and secure away from engine.
(10) Drain cooling system.
(11) Disconnect the heater hoses from the engine.
Fig. 2 Proper Tool Usage For Surface Preparation
1 - ABRASIVE PAD
2 - 3M ROLOCŸ BRISTLE DISC
3 - PLASTIC/WOOD SCRAPER
9 - 10 ENGINE - 3.7LDR
ENGINE - 3.7L (Continued)

INSTALLATION
(1) Lubricate camshaft journals with clean engine
oil.
NOTE: Position the left side camshaft so that the
camshaft sprocket dowel is near the 1 o'clock posi-
tion, This will place the camshaft at the neutral
position easing the installation of the camshaft
bearing caps.
(2) Position the camshaft into the cylinder head.
(3) Install the camshaft bearing caps, hand tighten
the retaining bolts.
NOTE: Caps should be installed so that the
stamped numbers on the caps are in numerical
order, ( 1 thru 4 ) from the front to the rear of the
engine. All caps should be installed so that the
stamped arrows on the caps point toward the front
of the engine.
(4) Working in 1/2 turn increments, tighten the
bearing cap retaining bolts starting with the middle
cap working outward (Fig. 14).
(5) Torque the camshaft bearing cap retaining
bolts to 11 N´m (100 in. lbs.).
(6) Position the camshaft drive gear into the tim-
ing chain aligning the V6 mark between the two
marked chain links (Two links marked during
removal).
(7) Using Special Tool 8428 Camshaft Wrench,
rotate the camshaft until the camshaft sprocketdowel is aligned with the slot in the camshaft
sprocket. Install the sprocket onto the camshaft.
CAUTION: Remove excess oil from camshaft
sprocket bolt. Failure to do so can cause bolt over-
torque resulting in bolt failure.
(8) Remove excess oil from bolt, then install the
camshaft sprocket retaining bolt and hand tighten.
(9) Remove Special Tool 8379 timing chain wedge.
(10) Using Special Tool 6958 spanner wrench with
adapter pins 8346, torque the camshaft sprocket
retaining bolt to 122 N´m (90 ft. lbs.).
(11) Install the cylinder head cover(Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - INSTALLATION).
CYLINDER HEAD COVER(S)
DESCRIPTION
The cylinder head covers are made of single layer
stamped steel, and are not interchangable from side-
to-side (Fig. 15).
Fig. 14 CAMSHAFT BEARING CAPS TIGHTENING
Fig. 15 CYLINDER HEAD COVERS
1 - LEFT SIDE CYLINDER HEAD COVER
2 - RIGHT SIDE CYLINDER HEAD COVER
DRENGINE - 3.7L 9 - 27
CAMSHAFT(S) (Continued)