Throttle Position Sensor DODGE RAM 2003 Service Owner's Manual

8W-31 TRANSMISSION CONTROL SYSTEM
Component Page
Automatic Day/Night Mirror........ 8W-31-7, 15
Brake Lamp Switch................. 8W-31-17
Clockspring........................ 8W-31-18
Clutch Interlock Brake Switch......... 8W-31-20
Data Link Connector....... 8W-31-5, 8, 17, 19, 25
Engine Control Module............ 8W-31-18, 19
Front Control Module.............. 8W-31-7, 10
Fuse 5.................... 8W-31-2, 10, 13, 16
Fuse 19........................... 8W-31-18
Fuse 28........................... 8W-31-23
Fuse 38...................... 8W-31-7, 10, 15
Fuse 43........................... 8W-31-20
Fuse 50........................... 8W-31-16
G107......................... 8W-31-2, 4, 10
G117............................. 8W-31-19
G201..................... 8W-31-9, 11, 19, 23
G203.......................... 8W-31-20, 25
Ignition Switch...................... 8W-31-5
Input Speed Sensor............... 8W-31-6, 14
Instrument Cluster............. 8W-31-5, 15, 23
Integrated Power Module . . . 8W-31-2, 7, 10, 13, 15,
16, 18, 20, 23
Line Pressure Sensor................. 8W-31-6
Output Speed Sensor........ 8W-31-6, 13, 14, 16Component Page
Overdrive Switch.............. 8W-31-9, 11, 19
Powertrain Control
Module . . 8W-31-3, 5, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19
Speed Control Servo................. 8W-31-17
Speed Control Switch-Left............ 8W-31-18
Speed Control Switch-Right........... 8W-31-18
Starter Motor Relay................. 8W-31-20
Tail/Stop/Turn Signal Lamp-Left........ 8W-31-7
Tail/Stop/Turn Signal Lamp-Right....... 8W-31-7
Throttle Position Sensor............... 8W-31-9
Transfer Case Control
Module........... 8W-31-20, 21, 22, 23, 24, 25
Transfer Case Mode Sensor........ 8W-31-21, 22
Transfer Case Selector Switch...... 8W-31-23, 24
Transfer Case Shift Motor............ 8W-31-25
Transmission Control
Module.............. 8W-31-2, 3, 4, 5, 6, 8, 9
Transmission Control Relay . . . 8W-31-2, 10, 13, 16
Transmission Range Sensor........... 8W-31-15
Transmission Solenoid Assembly.... 8W-31-13, 16
Transmission Solenoid/TRS
Assembly........ 8W-31-2, 3, 4, 6, 7, 10, 11, 12
DR8W-31 TRANSMISSION CONTROL SYSTEM 8W - 31 - 1

Component Page
C317............................. 8W-80-40
C319............................. 8W-80-40
C319............................. 8W-80-40
C322............................. 8W-80-40
C322............................. 8W-80-41
C323............................. 8W-80-41
C323............................. 8W-80-41
C327............................. 8W-80-42
C327............................. 8W-80-42
C328............................. 8W-80-42
C328............................. 8W-80-42
Camshaft Position Sensor (Diesel)...... 8W-80-42
Camshaft Position Sensor (Gas)........ 8W-80-42
Capacitor......................... 8W-80-43
Center High Mounted Stop Lamp/Cargo
Lamp.......................... 8W-80-43
Cigar Lighter Outlet................. 8W-80-43
Clearance Lamp No. 1 (Heavy Duty).... 8W-80-43
Clearance Lamp No. 2 (Heavy Duty).... 8W-80-43
Clearance Lamp No. 3 (Heavy Duty).... 8W-80-44
Clearance Lamp No. 4 (Heavy Duty).... 8W-80-44
Clearance Lamp No. 5 (Heavy Duty).... 8W-80-44
Clockspring C1..................... 8W-80-44
Clockspring C2..................... 8W-80-44
Clockspring C3..................... 8W-80-45
Clockspring C4..................... 8W-80-45
Clockspring C5 (Remote Radio)........ 8W-80-45
Clutch Interlock Brake Switch......... 8W-80-45
Coil On Plug No. 1 (3.7L/4.7L/5.7L)..... 8W-80-45
Coil On Plug No. 2 (3.7L/4.7L/5.7L)..... 8W-80-46
Coil On Plug No. 3 (3.7L/4.7L/5.7L)..... 8W-80-46
Coil On Plug No. 4 (3.7L/4.7L/5.7L)..... 8W-80-46
Coil On Plug No. 5 (3.7L/4.7L/5.7L)..... 8W-80-46
Coil On Plug No. 6 (3.7L/4.7L/5.7L)..... 8W-80-47
Coil On Plug No. 7 (4.7L/5.7L)......... 8W-80-47
Coil On Plug No. 8 (4.7L/5.7L)......... 8W-80-47
Compass/Mini-Trip Computer
(Except Base).................... 8W-80-47
Condenser Fan..................... 8W-80-48
Controller Antilock Brake C1.......... 8W-80-48
Controller Antilock Brake C2 (ABS)..... 8W-80-48
Crankshaft Position Sensor........... 8W-80-49
Cylinder Lock Switch-Driver (Premium) . . 8W-80-49
Cylinder Lock Switch-Passenger
(Premium)...................... 8W-80-49
Data Link Connector................ 8W-80-49
Data Link Connector................ 8W-80-50
Dome Lamp....................... 8W-80-50
Door Ajar Switch-Driver (Base)........ 8W-80-50
Door Ajar Switch-Left Rear (Base)...... 8W-80-50
Door Ajar Switch-Passenger (Base)...... 8W-80-50
Door Ajar Switch-Right Rear (Base)..... 8W-80-51
Door Lock Motor/Ajar Switch-Driver
(Except Base).................... 8W-80-51Component Page
Door Lock Motor/Ajar Switch-Left Rear
(Except Base).................... 8W-80-51
Door Lock Motor/Ajar Switch-Passenger
(Except Base).................... 8W-80-51
Door Lock Motor/Ajar Switch-Right Rear
(Except Base).................... 8W-80-52
Door Lock Switch-Passenger........... 8W-80-52
Door Window/Lock Switch............ 8W-80-52
Driver Blend Door Actuator
(Dual-Zone)...................... 8W-80-52
Driver Door Module C1.............. 8W-80-53
Driver Door Module C2.............. 8W-80-53
Driver Heated Seat Cushion........... 8W-80-53
Electric Brake Provision.............. 8W-80-53
Electronic Throttle Control Module
(5.7L).......................... 8W-80-54
Engine Control Module............... 8W-80-54
Engine Control Module............... 8W-80-55
Engine Coolant Temperature Sensor
(3.7L/4.7L/5.7L).................. 8W-80-56
Engine Coolant Temperature Sensor
(Diesel)......................... 8W-80-56
Engine Oil Pressure Switch........... 8W-80-57
Evap/Purge Solenoid (Except NGC)..... 8W-80-57
Evap/Purge Solenoid (NGC)........... 8W-80-57
Evaporator Temperature Sensor........ 8W-80-57
Fender Lamp-Front Left.............. 8W-80-58
Fender Lamp-Front Right............ 8W-80-58
Fender Lamp-Rear Left.............. 8W-80-58
Fender Lamp-Rear Right............. 8W-80-58
Fog Lamp-Left..................... 8W-80-58
Fog Lamp-Right.................... 8W-80-59
Fuel Control Actuator (Diesel)......... 8W-80-59
Fuel Heater (Diesel)................. 8W-80-59
Fuel Injector No. 1 (Diesel)............ 8W-80-59
Fuel Injector No. 1.................. 8W-80-59
Fuel Injector No. 2 (Diesel)............ 8W-80-60
Fuel Injector No. 2.................. 8W-80-60
Fuel Injector No. 3 (Diesel)............ 8W-80-60
Fuel Injector No. 3.................. 8W-80-60
Fuel Injector No. 4 (Diesel)............ 8W-80-60
Fuel Injector No. 4.................. 8W-80-61
Fuel Injector No. 5 (Diesel)............ 8W-80-61
Fuel Injector No. 5.................. 8W-80-61
Fuel Injector No. 6 (Diesel)............ 8W-80-61
Fuel Injector No. 6.................. 8W-80-61
Fuel Injector No. 7
(4.7L/5.7L/5.9L/8.0L)............... 8W-80-62
Fuel Injector No. 8
(4.7L/5.7L/5.9L/8.0L)............... 8W-80-62
Fuel Injector No. 9 (8.0L)............. 8W-80-62
Fuel Injector No. 10 (8.0L)............ 8W-80-62
Fuel Pump Module.................. 8W-80-63
Fuel Pump Motor (Diesel)............ 8W-80-63
Generator......................... 8W-80-63
8W - 80 - 2 8W-80 CONNECTOR PIN-OUTSDR

Component Page
Speaker-Right Instrument Panel....... 8W-80-97
Speaker-Right Rear................. 8W-80-97
Speed Control Servo................. 8W-80-97
Speed Control Switch-Left (ETC)....... 8W-80-98
Speed Control Switch-Left (Except ETC) . 8W-80-98
Speed Control Switch-Right (ETC)...... 8W-80-98
Speed Control Switch-Right (Except
ETC)........................... 8W-80-98
Switch-Driver Seat Belt.............. 8W-80-98
Switch-Passenger Airbag On-Off....... 8W-80-99
Tail/Stop/Turn Signal Lamp-Left....... 8W-80-99
Tail/Stop/Turn Signal Lamp-Right...... 8W-80-99
Tension Reducer-Seat Belt (Standard
Cab)........................... 8W-80-99
Tensioner-Left Seat Belt............. 8W-80-100
Tensioner-Right Seat Belt............ 8W-80-100
Throttle Position Sensor............. 8W-80-100
Throttle Position Sensor (Diesel)...... 8W-80-100
Trailer Tow Connector.............. 8W-80-101
Trailer Tow Connector-Add On........ 8W-80-101
Transfer Case Control Module C1...... 8W-80-101
Transfer Case Control Module C2...... 8W-80-102
Transfer Case Control Module C3...... 8W-80-102
Transfer Case Mode Sensor.......... 8W-80-102
Transfer Case Position Sensor (4.7L/
5.9L).......................... 8W-80-103
Transfer Case Selector Switch........ 8W-80-103
Transfer Case Shift Motor........... 8W-80-103
Transmission Control Module......... 8W-80-104Component Page
Transmission Range Sensor (5.9L/
Diesel)........................ 8W-80-105
Transmission Solenoid Assembly (5.9L/
8.0L).......................... 8W-80-105
Transmission Solenoid/Trs Assembly
(3.7L/4.7L/5.7L)................. 8W-80-106
Underhood Lamp.................. 8W-80-106
Vacuum Pump (Diesel).............. 8W-80-106
Vehicle Speed Sensor (Diesel)......... 8W-80-107
Vistronic Fan Drive (Diesel).......... 8W-80-107
Washer Fluid Level Switch........... 8W-80-107
Washer Pump Motor-Front........... 8W-80-107
Water In Fuel Sensor (Diesel)......... 8W-80-107
Wheel Speed Sensor-Left Front
(ABS)......................... 8W-80-108
Wheel Speed Sensor-Rear (ABS)....... 8W-80-108
Wheel Speed Sensor-Right Front
(ABS)......................... 8W-80-108
Wiper Motor-Front................. 8W-80-108
Washer Fluid Level Switch........... 8W-80-109
Washer Pump Motor-Front........... 8W-80-109
Water In Fuel Sensor (Diesel)......... 8W-80-109
Wheel Speed Sensor-Left Front
(ABS)......................... 8W-80-109
Wheel Speed Sensor-Rear (ABS)....... 8W-80-110
Wheel Speed Sensor-Right Front
(ABS)......................... 8W-80-110
Wiper Motor-Front................. 8W-80-110
8W - 80 - 4 8W-80 CONNECTOR PIN-OUTSDR

ENGINE CONTROL MODULE - C1 (DIESEL) - 60 WAY
CAV CIRCUIT FUNCTION
38 - -
39 - -
40 K13 16TN FUEL INJECTOR NO. 3 DRIVER
41 - -
42 K900 18DB/DG 5 VOLT SUPPLY
43 K9 18LB 5 VOLT SUPPLY
44 K101 18WT APPS NOT IDLE SWITCH
45 K62 18BR/DB LETF PUMP
46 K58 16BR/DB FUEL INJECTOR NO. 6 DRIVER
47 - -
48 - -
49 - -
50 K12 16YL/WT FUEL INJECTOR NO. 2 DRIVER
51 - -
52 K167 18BR/YL ACCELERATOR PEDAL POSITION SENSOR GROUND
NO. 1
53 G910 18VT/RD FUEL PRESSURE SENSOR SIGNAL RETURN
54 K72 18DG/OR MAP SENSOR SIGNAL
55 - -
56 K38 16GY FUEL INJECTOR NO. 5 DRIVER
57 K92 16TN/PK COIL ON PLUG DRIVER NO. 2
58 - -
59 K91 16TN/RD COIL ON PLUG DRIVER NO. 1
60 - -
ENGINE CONTROL MODULE - C2 (DIESEL) - 50 WAY
CAV CIRCUIT FUNCTION
1 K22 18DR/DB THROTTLE POSITION SENSOR SIGNAL
2 K24 18WT/DG CRANKSHAFT POSITION SENSOR SIGNAL
3 K69 18 BR/LB INJECTOR CONTROL SIGNAL NO.1
4- -
5 K154 18GY GLOW PLUG RELAY NO. 1 OUTPUT
6 K152 18WT GLOW PLUG RELAY NO. 1 CONTROL
7- -
8- -
9- -
10 Y5 18OR FAN SPEED SENSOR
11 G7 18WT/OR VEHICLE SPEED SIGNAL
12 G60 18GY/YL ENGINE OIL PRESSURE SWITCH SENSE
13 - -
14 - -
15 - -
16 D21 18PK SCI TRANSMIT
17 - -
18 - -
19 D20 18LG SCI RECEIVE
20 A140 16DG/WT FUSED B(+)
21 Z816 16BK/TN GROUND
22 - -
23 Y3 18WT -
24 K4 18BK/LB SENSOR GROUND
25 - -
26 G8 18 LB/BK FUEL LEVEL SENSOR SIGNAL
27 K77 18 BR/WT TRANSFER CASE POSITION SENSOR INPUT
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 55

POWERTRAIN CONTROL MODULE C1 (JTEC) - BLACK 32 WAY
CAV CIRCUIT FUNCTION
1 K93 18TN/OR (3.7L) COIL DRIVER NO. 3
1 K18 18RD/YL (8.0L) IGNITION COIL NO.1 DRIVER
2 Y135 18LG/BK FUSED IGNITION SWITCH OUTPUT (RUN-START)
3 K94 18TN/LG (3.7L) COIL DRIVER NO. 4
3 K32 18YL/GY (8.0L) IGNITION COIL NO.4 DRIVER
4 K4 18BK/LB SENSOR GROUND
5 K96 18TN/LB (3.7L) COIL DRIVER NO. 6
5 K43 18DG/GY (8.0L) IGNITION COIL NO.5 DRIVER
6 T24 18BR/YL PARK/NEUTRAL POSITION SWITCH SENSE (T41)
7 K91 18TN/RD (3.7L) COIL DRIVER NO. 1
7 K19 18BK/GY (5.9L/8.0L) IGNITION COIL NO. 1 DRIVER
8 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
9 K98 18LB/RD (4.7L) COIL DRIVER NO. 8
9 K17 18DB/TN (8.0L) IGNITION COIL NO. 2 DRIVER
10 K39 18GY/RD IDLE AIR CONTROL NO. 3 DRIVER
11 K60 18YL/BK IDLE AIR CONTROL NO. 2 DRIVER
12 S28 18YL/BK (3.7L) POWER STEERING PRESSURE SWITCH SIGNAL
13 G113 18OR (5.9L) PTO SWITCH SENSE
13 A41 14YL (3.7L) FUSED IGNITION SWITCH OUTPUT (RUN-START)
14 K77 18BR/WT (5.9L) (MANUAL
TRANSFER CASE)TRANSFER CASE POSITION SENSOR INPUT
15 K21 18BK/RD INTAKE AIR TEMPERATURE SENSOR SIGNAL
16 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
17 K7 18OR 5 VOLT SUPPLY
18 K44 18TN/YL CAMSHAFT POSITION SENSOR SIGNAL
19 K59 18VT/BK IDLE AIR CONTROL NO. 4 DRIVER
20 K40 18BR/WT IDLE AIR CONTROL NO. 1 DRIVER
21 K95 18TN/DG (3.7L) COIL DRIVER NO. 5
22 A14 18RD/WT FUSED B(+)
23 K22 18OR/DB THROTTLE POSITION SENSOR SIGNAL
24 K41 18BK/DG OXYGEN SENSOR 1/1 SIGNAL
25 K141 18TN/WT OXYGEN SENSOR 1/2 SIGNAL
26 K241 18LG/RD (CALIFORNIA) OXYGEN SENSOR 2/1 SIGNAL
27 K1 18DG/RD MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL
28 - -
29 K341 18TN/WT (CALIFORNIA) OXYGEN SENOR 2/2 SIGNAL
30 - -
31 Z82 14BK/TN GROUND
32 Z81 14BK/TN GROUND
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 87

TENSIONER-LEFT SEAT BELT - YELLOW 2 WAY
CAV CIRCUIT FUNCTION
1 R54 18LB/YL LEFT SEAT BELT TENSIONER LINE 2
2 R56 18LB/DG LEFT SEAT BELT TENSIONER LINE 1
TENSIONER-RIGHT SEAT BELT - YELLOW 2 WAY
CAV CIRCUIT FUNCTION
1 R53 18LG/YL RIGHT SEAT BELT TENSIONER LINE 2
2 R55 18LG/DG RIGHT SEAT BELT TENSIONER LINE 1
THROTTLE POSITION SENSOR - NATURAL 3 WAY
CAV CIRCUIT FUNCTION
1 K7 18OR 5 VOLT SUPPLY
2 K22 18OR/DB (4.7L/5.9L) TP NO.1 SIGNAL
2 K4 18BK/LB (3.7L) SENSOR GROUND
3 K4 18BK/LB (4.7L/5.9L) SENSOR GROUND
3 K22 18OR/DB (3.7L) TP NO.1 SIGNAL
THROTTLE POSITION SENSOR (DIESEL)-6WAY
CAV CIRCUIT FUNCTION
1 K104 18RD/WT SENSOR GROUND
2 K101 18WT THROTTLE POSITION SENSOR RETURN
3 K232 18YL THROTTLE POSITION SIGNAL
4 K56 18LG/OR SUPPLY VOLTAGE
5 K900 18DB/DG SENSOR GROUND
6 K49 18VT/BK No Function Defined
8W - 80 - 100 8W-80 CONNECTOR PIN-OUTSDR

TRANSMISSION CONTROL MODULE - BLACK 60 WAY
CAV CIRCUIT FUNCTION
1 T1 18LG/BK TRS T1 SENSE
2 T4 18PK/OR TRS T2 SENSE
3 T3 18VT TRS T3 SENSE
4- -
5- -
6 Y210 18YL/RD (5.7L) EATX RPM SIGNAL
6 K24 18GY/BK (3.7L) CRANKSHAFT POSITION SENSOR SIGNAL
7 D15 18WT/DG SCI TRANSMIT (TCM)
8 A41 16YL FUSED IGNITION SWITCH OUTPUT (START)
9 T9 18OR/BK OVERDRIVE PRESSURE SWITCH SENSE
10 T10 18YL/DG TORQUE MANAGEMENT REQUEST SENSE
11 A51 16RD/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
12 Y208 18DB/YL (5.7L) APPS NO.1 OUTPUT
12 K22 18OR/DB (3.7L) THROTTLE POSITION SENSOR SIGNAL
13 T13 18DB/BK SPEED SENSOR GROUND
14 T14 18LG/WT OUTPUT SPEED SENSOR SIGNAL
15 K30 19PK TRANSMISSION CONTROL RELAY CONTROL
16 T16 16RD TRANSMISSION CONTROL RELAY OUTPUT
17 T16 16RD TRANSMISSION CONTROL RELAY OUTPUT
18 T118 18YL/DB PRESSURE CONTROL SOLENOID CONTROL
19 T119 18WT/DB 2C SOLENOID CONTROL
20 T120 18LG LR SOLENOID CONTROL
21 - -
22 - -
23 - -
24 - -
25 - -
26 - -
27 - -
28 B22 20DG/YL (5.7L) VEHICLE SPEED SIGNAL
28 G7 18WT/OR (3.7L) VEHICLE SPEED SIGNAL
29 T29 18GY UNDERDRIVE PRESSURE SWITCH SENSE
30 T38 18VT/TN LINE PRESSURE SENSOR SIGNAL
31 - -
32 - -
33 - -
34 - -
35 - -
36 T16 16RD TRANSMISSION CONTROL RELAY OUTPUT
37 Z13 16BK/RD GROUND
38 T39 18GY/LB 5 VOLT SUPPLY
39 Z13 16BK/RD GROUND
40 T140 18VT/LG MS SOLENOID CONTROL
41 T41 18BK/WT TRS T41 SENSE(C1)
42 T42 18VT/WT TRS T42 SENSE
43 D25 20VT/OR PCI BUS
44 - -
45 Y207 18RD/WT (5.7L) TPS NO.1 OUTPUT
46 D6 18PK/LB SCI TRANSMIT
47 T147 18LB 2C PRESSURE SWITCH SENSE
48 T48 18DB 4C PRESSURE SWITCH SENSE
49 T6 20OR/WT OVERDRIVE OFF SWITCH SENSE
50 T50 18DG LOW/REVERSE PRESSURE SWITCH SENSE
51 Y209 18TN/BK (5.7L) SENSOR GROUND
51 K4 18BK/LB (3.7L) SENSOR GROUND
8W - 80 - 104 8W-80 CONNECTOR PIN-OUTSDR

CONNECTOR NAME/NUMBER COLOR LOCATION FIG.
Speed Control Switch-Right (ETC) WT At Steering Wheel N/S
Tail/Stop/Turn Signal Lamp-Left BK At Lamp N/S
Tail/Stop/Turn Signal Lamp-Right BK At Lamp N/S
Throttle Position Sensor NAT Throttle Body 4, 8
Trailer Tow Connector BK At Trailer Hitch 49
Trailer Tow Connector-Add On BK At Trailer Hitch 49, 51
Transfer Case Control Module C1 BK Left Side of Instrument Panel 37, 39
Transfer Case Control Module C2 GY Left Side of Instrument Panel 37, 39
Transfer Case Control Module C3 BK Left Side of Instrument Panel 37, 39
Transfer Case Mode Sensor BK Left Front Side of Transfer Case 20
Transfer Case Position Sensor BK Front Middle of Transfer Case 14, 15, 16, 20
Transfer Case Selector Switch BK Center of Instrument Panel 35, 37, 38
Transfer Case Shift Motor BK Left Rear of Transmission 20
Transmission Control Module BK Left Rear of Engine Compartment 21
Transmission Range Sensor BK Left side of Transmission 11, 12
Transmission Solenoid Assembly BK Left Side of Transmission 11, 12
Transmission Solenoid/TRS
Assembly (3.7L/4.7L)BK Left Side of Transmission 14, 15
Underhood Lamp BK Underside of Hood 31
Vistronic Fan Drive Front Engine Compartment 30
Washer Fluid Level Switch BK At Reservoir 25, 29, 30
Washer Pump Motor-Front BK At Washer Fluid Reservoir 25, 29, 30
Water In Fuel Sensor (Diesel) BK Right Side Engine 10
Wheel Speed Sensor-Left Front BK Left Rear Lower Side of Engine
Compartment26, 31
Wheel Speed Sensor-Rear BK Right Rear of Body 49
Wheel Speed Sensor-Right Front GY Right Rear Lower Side of Engine
Compartment25
Wiper Motor-Front BK Left Side of Cowl 26, 28
8W - 91 - 8 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONDR
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

(12) Disconnect heater hoses from heater core and
remove hose assembly.
(13) Disconnect throttle and speed control cables.
(14) Remove upper radiator hose from engine.
(15) Remove lower radiator hose from engine.
(16) Remove radiator/cooling module assembly.
(17) Disconnect the engine to body ground straps
at the left side of cowl.
(18) Disconnect the engine wiring harness at the
following points:
²Intake air temperature (IAT) sensor
²Fuel Injectors
²Throttle Position (TPS) Switch
²Idle Air Control (IAC) Motor
²Engine Oil Pressure Switch
²Engine Coolant Temperature (ECT) Sensor
²Manifold Absolute Pressure MAP) Sensor
²Camshaft Position (CMP) Sensor
²Coil Over Plugs
²Crankshaft Position Sensor
(19) Remove coil over plugs.
(20) Release fuel rail pressure.
(21) Remove fuel rail and secure away from
engine.
NOTE: It is not necessary to release the quick con-
nect fitting from the fuel supply line for engine
removal.
(22) Remove the PCV hose.
(23) Remove the breather hoses.
(24) Remove the vacuum hose for the power brake
booster.
(25) Disconnect knock sensors.
(26) Remove engine oil dipstick tube.
(27) Remove intake manifold.
(28) Install engine lifting fixture,special tool#8247,
using original fasteners from the removed intake
manifold, and fuel rail. Torque to factory specifica-
tions.
NOTE: Recheck bolt torque for engine lift plate
before removing engine.
(29) Secure the left and right engine wiring har-
nesses away from engine.
(30) Raise vehicle.
(31) Disconnect oxygen sensor wiring.
(32) Disconnect crankshaft postion sensor.
(33) Disconnect the engine block heater power
cable, if equipped.
(34) Disconnect the front propshaft at the front
differential and secure out of way.
NOTE: It is necessary to disconnect the front prop-
shaft for access to the starter and left side exhaust
flange.(35) Remove the starter.
(36) Remove the ground straps from the left and
right side of the block.
(37) Disconnect the right and left exhaust pipes at
the manifolds and from the crossover, and remove
from the vehicle.
NOTE: The exhaust clamps at the manifolds cannot
be reused. New clamps must be used or leaks may
occur.
(38) Remove the structural cover.
(39) Remove torque convertor bolts, and mark
location for reassembly.
(40) Remove transmission bellhousing to engine
bolts.
(41) Remove left and right engine mount thru
bolts.
(42) Lower the vehicle.
(43) Support the transmission with a suitable jack.
(44) Connect a suitable engine hoist to the engine
lift plate.
(45) Remove engine from vehicle.
INSTALLATION
(1) Position the engine in the vehicle.
(2) Install both left and right side engine mounts
onto engine.
(3) Raise the vehicle.
(4) Install the transmission bellhousing to engine
mounting bolts. Tighten the bolts to 41 N´m (30ft.
lbs.).
(5) Tighten the engine mount thru bolts.
(6) Install the torque convertor bolts.
(7) Connect the ground straps on the left and right
side of the engine.
(8) Install the starter.
(9) Connect the crankshaft position sensor.
(10) Install the engine block heater power cable, if
equipped.
CAUTION: The structural cover requires a specific
torque sequence. Failure to follow this sequence
may cause severe damage to the cover.
(11) Install the structural cover.
NOTE: New clamps must be used on exhaust man-
ifold flanges. Failure to use new clamps may result
in exhaust leaks.
(12) Install the left and right exhaust pipes.
(13) Connect the left and right oxygen sensors.
(14) Lower vehicle.
(15) Remove the engine lift plate.
(16) Connect the knock sensors.
DRENGINE - 3.7L 9 - 11
ENGINE - 3.7L (Continued)

(17) Connect the engine to body ground straps at
the left side of the cowl.
(18) Install the intake manifold.
(19) Install the engine oil dipstick tube.
(20) Install the power brake booster vacuum hose.
(21) Install the breather hoses.
(22) Install the PCV hose.
(23) Install the fuel rail.
(24) Install the coil over plugs.
(25) Connect the engine wiring harness at the fol-
lowing points:
²Intake air temperature (IAT) sensor
²Fuel Injectors
²Throttle Position (TPS) Switch
²Idle Air Control (IAC) Motor
²Engine Oil Pressure Switch
²Engine Coolant Temperature (ECT) Sensor
²Manifold Absolute Pressure MAP) Sensor
²Camshaft Position (CMP) Sensor
²Coil Over Plugs
²Crankshaft Position Sensor
(26) Reinstall the radiator/cooling module assem-
bly.
(27) Connect lower radiator hose.
(28) Connect upper radiator hose.
(29) Connect throttle and speed control cables.
(30) Install the heater hose assembly.
(31) Install coolant recovery bottle.
(32) Install the power steering pump.
(33) Install the generator.
(34) Install the A/C compressor.
(35) Install the drive belt.
(36) Install the fan shroud with the viscous fan
assembly.
(37) Install the radiator core support bracket.
(38) Install the air cleaner assembly.
(39) Refill the engine cooling system.
(40) Recharge the air conditioning.
(41) Install the hood.
(42) Check and fill engine oil.
(43) Connect the battery negative cable.
(44) Start the engine and check for leaks.SPECIFICATIONS
SPECIFICATIONS ± 3.7L ENGINE
DESCRIPTION SPECIFICATION
Engine Type 90É SOHC V-6 12-Valve
Displacement 3.7 Liters / 3700 cc
226 ( Cubic Inches)
Bore 93.0 mm (3.66 in.)
Stroke 90.8 mm (3.40 in.)
Compression Ratio 9.1:1
Horsepower 210 BHP @ 5200 RPM
Torque 225 LB-FT @ 4200 RPM
Lead Cylinder #1 Left Bank
Firing Order 1-6-5-4-3-2
CYLINDER BLOCK
Cylinder Block Cast Iron
Bore Diameter 93.0   .0075 mm
(3.6619   0.0003 in.)
Out of Round (MAX) 0.076 mm (0.003 in.)
Taper (MAX) 0.051 mm (0.002 in.)
PISTONS
Material Aluminum Alloy
Diameter 92.975 mm (3.6605 in.)
Weight 367.5 grams (12.96 oz)
Ring Groove Diameter
No. 1 83.73 - 83.13 mm
(3.296 - 3.273 in.)
No. 2 82.833 - 83.033 mm
(3.261 - 3.310 in.)
No. 3 83.88 - 84.08 mm
(3.302 - 3.310 in.)
PISTON PINS
Type Floating
Clearance In Piston 0.006 - 0.015 mm
(0.0002 - 0.0005 in.)
Diameter 24.017 - 24.020 mm
(0.9455 - 0.9456 in.)
PISTON RINGS
Ring Gap
Top Compression Ring 0.20 - 0.36 mm
(0.0079 - 0.0142 in.)
9 - 12 ENGINE - 3.7LDR
ENGINE - 3.7L (Continued)