1998 DODGE RAM 1500 heater fan

8W-42 AIR CONDITIONING
Component Page
A/C Compressor Clutch............... 8W-42-7
A/C Compressor Clutch Relay.......... 8W-42-7
A/C Pressure Transducer............ 8W-42-8, 9
A/C-Heater Control........... 8W-42-2, 3, 4, 5, 6
Blend Door Actuator.................. 8W-42-6
Blower Motor....................... 8W-42-2
Blower Motor Resistor Block........... 8W-42-2
Condenser Fan..................... 8W-42-10
Condenser Fan Relay................ 8W-42-10
Data Link Connector............. 8W-42-3, 4, 8
Driver Blend Door Actuator............ 8W-42-5
Engine Control Module.............. 8W-42-7, 9
EVAPorator Temperature Sensor........ 8W-42-4
Fuse 12........................... 8W-42-10
Fuse 16............................ 8W-42-7Component Page
Fuse 36.......................... 8W-42-3, 4
G104............................. 8W-42-10
G107.............................. 8W-42-7
G120.............................. 8W-42-7
G202.......................... 8W-42-2, 3, 4
Heated Mirror Relay............... 8W-42-3, 4
Ignition Switch...................... 8W-42-2
Instrument Cluster................... 8W-42-2
Integrated Power Module....... 8W-42-3, 4, 7, 10
Mode Door Actuator 1............... 8W-42-5, 6
Mode Door Actuator 2............... 8W-42-5, 6
Passenger Blend Door Actuator......... 8W-42-5
Powertrain Control Module........ 8W-42-7, 8, 10
PTCNo.1.......................... 8W-42-7
Recirculation Door Actuator.......... 8W-42-5, 6
DR8W-42 AIR CONDITIONING 8W - 42 - 1

Component Page
C315............................. 8W-80-39
C316 (Heated Seats)................. 8W-80-39
C316............................. 8W-80-40
C319............................. 8W-80-40
C319............................. 8W-80-40
C320............................. 8W-80-40
C320............................. 8W-80-41
C322 (Except Heated Seats)........... 8W-80-41
C322............................. 8W-80-41
C323 (Except Heated Seats)........... 8W-80-42
C323 (Except Heated Seats)........... 8W-80-42
C323 (Heated Seats)................. 8W-80-42
C323 (Heated Seats)................. 8W-80-43
C327 (Dual Rear Wheels)............. 8W-80-43
C327 (Dual Rear Wheels)............. 8W-80-43
C328 (Dual Rear Wheels)............. 8W-80-43
C328 (Dual Rear Wheels)............. 8W-80-44
Camshaft Position Sensor (NGC)....... 8W-80-44
Camshaft Position Sensor (Diesel)...... 8W-80-44
Capacitor (3.7L/4.7L)................ 8W-80-44
Center High Mounted Stop Lamp/cargo
Lamp.......................... 8W-80-45
Cigar Lighter Outlet................. 8W-80-45
Clearance Lamp No. 1 (Heavy Duty).... 8W-80-45
Clearance Lamp No. 2 (Heavy Duty).... 8W-80-45
Clearance Lamp No. 3 (Heavy Duty).... 8W-80-46
Clearance Lamp No. 4 (Heavy Duty).... 8W-80-46
Clearance Lamp No. 5 (Heavy Duty).... 8W-80-46
Clockspring C1..................... 8W-80-46
Clockspring C2..................... 8W-80-47
Clockspring C3..................... 8W-80-47
Clockspring C4..................... 8W-80-47
Clutch Interlock Brake Switch......... 8W-80-47
Coil On Plug No. 1 (3.7L/4.7L)......... 8W-80-47
Coil On Plug No. 1 (5.7L)............. 8W-80-48
Coil On Plug No. 2 (3.7L/4.7L)......... 8W-80-48
Coil On Plug No. 2 (5.7L)............. 8W-80-48
Coil On Plug No. 3 (3.7L/4.7L)......... 8W-80-48
Coil On Plug No. 3 (5.7L)............. 8W-80-49
Coil On Plug No. 4 (3.7L/4.7L)......... 8W-80-49
Coil On Plug No. 4 (5.7L)............. 8W-80-49
Coil On Plug No. 5 (3.7L/4.7L)......... 8W-80-49
Coil On Plug No. 5 (5.7L)............. 8W-80-50
Coil On Plug No. 6 (3.7L/4.7L)......... 8W-80-50
Coil On Plug No. 6 (5.7L)............. 8W-80-50
Coil On Plug No. 7 (4.7L)............. 8W-80-50
Coil On Plug No. 7 (5.7L)............. 8W-80-51
Coil On Plug No. 8 (4.7L)............. 8W-80-51
Coil On Plug No. 8 (5.7L)............. 8W-80-51
Compass/Mini-Trip Computer (Except
Base).......................... 8W-80-51
Condenser Fan (NGC)............... 8W-80-52
Controller Anitlock Brake C1.......... 8W-80-52
Controller Antilock Brake C2 (ABS)..... 8W-80-52Component Page
Crankshaft Position Sensor (3.7L)...... 8W-80-52
Crankshaft Position Sensor (4.7L)...... 8W-80-53
Crankshaft Position Sensor (5.7L)...... 8W-80-53
Crankshaft Position Sensor (Diesel)..... 8W-80-53
Cylinder Lock Switch-Driver (Premium) . . 8W-80-53
Data Link Connector................ 8W-80-53
Data Link Connector-Engine (Diesel).... 8W-80-54
Dome Lamp....................... 8W-80-54
Door Ajar Switch-Driver.............. 8W-80-54
Door Ajar Switch-Left Rear........... 8W-80-54
Door Ajar Switch-Passenger........... 8W-80-55
Door Ajar Switch-Right Rear.......... 8W-80-55
Door Lock Motor/Ajar Switch-Driver.... 8W-80-55
Door Lock Motor/Ajar Switch-Left Rear . . 8W-80-55
Door Lock Motor/Ajar Switch-Passenger . 8W-80-56
Door Lock Motor/Ajar Switch-Right Rear . 8W-80-56
Door Lock Switch-Passenger........... 8W-80-56
Driver Blend Door Actuator (Dual Zone) . 8W-80-56
Driver Door Module C1.............. 8W-80-57
Driver Door Module C2.............. 8W-80-57
EGR Solenoid (4.7L/5.7L)............. 8W-80-57
Electric Brake Provision.............. 8W-80-58
Electric Throttle Control Module....... 8W-80-58
Engine Control Module C1 (Diesel)..... 8W-80-58
Engine Control Module C2 (Diesel)..... 8W-80-60
Engine Coolant Temperature Sensor
(Diesel)......................... 8W-80-61
Engine Coolant Temperature Sensor
(Gas)........................... 8W-80-61
Engine Oil Pressure Switch........... 8W-80-61
EVAP/Purge Solenoid (NGC).......... 8W-80-61
Evaporator Temperature Sensor........ 8W-80-62
Fender Lamp-Front Left (Dual Rear
Wheels)......................... 8W-80-62
Fender Lamp-Front Right (Dual Rear
Wheels)......................... 8W-80-62
Fender Lamp-Rear Left (Dual Rear
Wheels)......................... 8W-80-62
Fender Lamp-Rear Right (Dual Rear
Wheels)......................... 8W-80-62
Fog Lamp-Left..................... 8W-80-63
Fog Lamp-Right.................... 8W-80-63
Fuel Control Actuator (Diesel)......... 8W-80-63
Fuel Heater (Diesel)................. 8W-80-63
Fuel Injector No. 1 (Gas)............. 8W-80-63
Fuel Injector No. 2 (Gas)............. 8W-80-64
Fuel Injector No. 3 (Gas)............. 8W-80-64
Fuel Injector No. 4 (Gas)............. 8W-80-64
Fuel Injector No. 5 (Gas)............. 8W-80-64
Fuel Injector No. 6 (Gas)............. 8W-80-65
Fuel Injector No. 7 (Gas)............. 8W-80-65
Fuel Injector No. 8 (Gas)............. 8W-80-65
Fuel Injector Pack No. 1 (Diesel)....... 8W-80-65
Fuel Injector Pack No. 2 (Diesel)....... 8W-80-66
Fuel Injector Pack No. 3 (Diesel)....... 8W-80-66
8W - 80 - 2 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

INTEGRATED POWER MODULE C6 - BLACK 15 WAY
CAV CIRCUIT FUNCTION
1- -
2 A400 14TN/RD FUSED B(+)
3- -
4 K342 16BR/WT ASD RELAY OUTPUT
5- -
6- -
7- -
8- -
9- -
10 A961 14RD (DIESEL) FUEL HEATER RELAY OUTPUT
10 C123 16LB/WT (NGC) CONDENSER FAN RELAY OUTPUT
11 A960 14RD (DIESEL) FUSED B(+)
11 A16 16RD/BR (NGC) FUSED B(+)
12 F982 14PK/YL FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
13 - -
14 T16 18YL/OR TRANSMISSION CONTROL RELAY OUTPUT
15 - -
INTEGRATED POWER MODULE C7 - GRAY 26 WAY
CAV CIRCUIT FUNCTION
1 T750 14YL/GY STARTER MOTOR RELAY OUTPUT
2 W3 16BR/WT WIPER RELAY LOW SPEED OUTPUT
3 F983 20PK/YL FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
4 A930 18RD FUSED B(+)
5- -
6 L43 18WT/DB LEFT LOW BEAM OUTPUT
7 L34 18WT/GY RIGHT HIGH BEAM OUTPUT
8- -
9 A109 16OR/RD (GAS) FUEL PUMP RELAY OUTPUT
10 - -
11 K51 20BR/WT (GAS) ASD RELAY CONTROL
13 - -
14 - -
15 L33 18WT/LG LEFT HIGH BEAM OUTPUT
16 - -
16 A72 18RD/OR ADJUSTABLE PEDAL RELAY OUTPUT
17 - -
17 C15 16DB/WT REAR WINDOW DEFOGGER RELAY OUTPUT
18 - -
19 K31 20BR FUEL PUMP RELAY CONTROL
20 - -
20 L89 18WT/YL (FOG LAMPS) FOG LAMP RELAY OUTPUT
21 T751 16YL FUSED IGNITION SWITCH OUTPUT (START)
22 L44 18WT/TN RIGHT LOW BEAM OUTPUT
23 T41 20YL/DB (EXCEPT NGC) TRS T41 SENSE
23 T752 20DG/OR (NGC) STARTER RELAY CONTROL
24 A944 20RD FUSED B(+)
26 - -
8W - 80 - 76 8W-80 CONNECTOR PIN-OUTSDR

POWERTRAIN CONTROL MODULE C3 (NGC) - WHITE 38 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3 K51 20BR/WT ASD RELAY CONTROL
4- -
5 V35 20VT/OR (4.7L) S/C VENT CONTROL
6 K173 18BR/VT CONDENSER FAN RELAY CONTROL
7 V32 20VT/YL (4.7L) S/C POWER SUPPLY
8 K106 18VT/LB NVLD SOLENOID CONTROL
9 K299 18BR/WT O2 1/2 HEATER CONTROL
10 K399 18BR/GY O2 2/2 HEATER CONTROL
11 C13 20LB/OR A/C CLUTCH RELAY CONTROL
12 V36 20VT/YL (4.7L) S/C VACUUM CONTROL
13 - -
14 V32 20VT/YL (5.7L) BRAKE SWITCH NO. 2 SIGNAL
15 V937 20VT/BR (5.7L) S/C SWITCH RETURN
16 K167 20BR/YL (5.7L) APPS NO. 1 RETURN
17 K400 20BR/VT (5.7L) APPS NO. 2 RETURN
18 V38 20VT/OR (5.7L) S/C SWITCH NO. 2 SIGNAL
19 K342 16BR/WT ASD RELAY OUTPUT
20 K52 18DB/WT EVAP PURGE CONTROL
21 T41 20YL/DB TRS T41 SENSE
22 G113 18VT PTO SWITCH SENSE
23 B29 20DG/WT BRAKE SWITCH SIGNAL
24 - -
25 K23 20BR/WT (5.7L) APPS NO. 1 SIGNAL
26 - -
27 - -
28 K342 16BR/WT ASD RELAY OUTPUT
29 K70 18DB/BR EVAP PURGE RETURN
30 K66 18DB/WT P/S SWITCH SIGNAL
31 - -
32 K25 18DB/VT BATT TEMP SIGNAL
33 N4 18DB/WT (3.7L/4.7L) FUEL LEVEL SENSOR SIGNAL
33 N4 20DB/WT (5.7L) FUEL LEVEL SENSOR SIGNAL
34 V37 20VT S/C SWITCH NO. 1 SIGNAL
35 K107 18VT/WT NVLD SWITCH SIGNAL
36 K29 20WT/BR (5.7L) APPS NO. 2 SIGNAL
37 K31 20BR FUEL PUMP RELAY CONTROL
38 T752 20DG/OR STARTER RELAY CONTROL
8W - 80 - 90 8W-80 CONNECTOR PIN-OUTSDR

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)

(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
GENERAL SPECIFICATIONS
DESCRIPTION SPECIFICATION
Type 90É SOHC V6 12 Valve
Number of
Cylinders4
Firing Order 1-6-5-4-3-2
Lead Cylinder No. 1 Left Bank
Compression
Ratio9.1:1
Max. Variation
Between
Cylinders25%
Metric Standard
Displacement 3.7 Liters 226 Cubic
Inches
Bore 93.0 mm 3.66 in.
Stroke 90.8 mm 3.40 in.
Horsepower 210@5200 RPM
Torque 225ft. lbs.@4200 PRM
Compression
Pressure1172-1551 kPa 170-225 psi
CYLINDER BLOCK
DESCRIPTION SPECIFICATION
Metric Standard
Bore Diameter 93.0   .0075
mm3.6619   0.0003
in.
Out of Round
(MAX)0.076 mm 0.003 in.
Taper (MAX) 0.051 mm 0.002 in.
9 - 12 ENGINE - 3.7LDR
ENGINE - 3.7L (Continued)

IDLER SHAFT
REMOVAL
(1) Remove the primary and secondary timing
chains and sprockets. Refer to procedure in this sec-
tion.
NOTE: To remove the idler shaft, it is necessary to
tap threads into the shaft, to install the removal
tool.
(2) Using a 12 mm X 1.75 tap, cut threads in the
idler shaft center bore.
(3) Cover the radiator core with a suitable cover.
CAUTION: Use care when removing the idler shaft,
Do not strike the radiator cooling fins with the slide
hammer.
(4) Using Special Tool 8517 Slide Hammer, remove
the idler shaft.
INSTALLATION
(1) Thoroughly clean the idler shaft bore.
(2) Position the idler shaft in the bore.
NOTE: The two lubrication holes in the idler shaft
do not require any special alignment.
NOTE: Before using the retaining bolt to install the
idler shaft, coat the threads and the pilot on the
idler shaft, with clean engine oil.
(3) Using the primary idler sprocket retaining bolt
and washer, carefully draw the idler shaft into the
bore until fully seated.
(4) Coat the idler shaft with clean engine oil.
(5) Install the timing chains and sprockets. Refer
to procedure in this section.
TIMING BELT / CHAIN
COVER(S)
REMOVAL
(1) Disconnect the battery negative cable.
(2) Drain cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE).
(3) Remove electric cooling fan and fan shroud
assembly.
(4) Remove fan and fan drive assembly (Refer to 7
- COOLING/ENGINE/FAN DRIVE VISCOUS
CLUTCH - REMOVAL).
(5) Disconnect both heater hoses at timing cover.
(6) Disconnect lower radiator hose at engine.(7) Remove accessory drive belt tensioner assembly
(Fig. 103).
(8) Remove crankshaft damper (Refer to 9 -
ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
REMOVAL).
(9) Remove the generator (Refer to 8 - ELECTRI-
CAL/CHARGING/GENERATOR - REMOVAL).
(10) Remove A/C compressor (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING/A/C COM-
PRESSOR - REMOVAL).
CAUTION: The 3.7L engine uses an anerobic sealer
instead of a gasket to seal the front cover to the
engine block, from the factory. For service, MoparT
Engine RTV sealant must be substituted.
NOTE: It is not necessary to remove the water
pump for timing cover removal.
(11) Remove the bolts holding the timing cover to
engine block (Fig. 104).
(12) Remove the timing cover.
INSTALLATION
CAUTION: Do not use oil based liquids to clean tim-
ing cover or block surfaces. Use only rubbing alco-
hol, along with plastic or wooden scrapers. Use no
wire brushes or abrasive wheels or metal scrapers,
or damage to surfaces could result.
Fig. 103 ACCESSORY DRIVE BELT TENSIONER
1 - TENSIONER ASSEMBLY
2 - FASTENER TENSIONER TO FRONT COVER
DRENGINE - 3.7L 9 - 81