Chrysler RAM TRUCK 2500 1994 Service Manual page 386

• IGNITION SYSTEMS 80 - 29
INSTALLATION
(1) Install sensor to intake manifold.
(2) Tighten sensor to 7 N-m (62 in. lbs.) torque.
(3) Connect electrical connector to sensor.
The sensor connector is symmetrical (not indexed).
It can be installed to the sensor i n either direction.
(4) Replace any lost engine coolant. Refer to Group
7, Cooling System.
REMOWAL—8.0L V-10 ENGINE
The engine coolant sensor is located i n the thermo­
stat housing (Fig. 12).
Fig. 12 Coolant Temperature Sensor—8.0L V-10
Engine—Typical
(1) Partially drain cooling system. Refer to Group
7, Cooling System.
(2) Disconnect electrical connector from sensor
(Fig. 12).
(3) Remove sensor from thermostat housing.
INSTALLATION
(1) Install sensor to thermostat housing.
(2) Tighten sensor to 7 N-m (65 in. lbs.) torque.
(3) Connect electrical connector to sensor.
(4) Replace any lost engine coolant. Refer to Group
7, Cooling System.
DISTRIBUTOR SERVICE
3 J L V-6 OR 5 . 2 / 5 J L V-8 ENGINES
REMOWAL
CAUTION: B a s e ignition timing is not adjustable on
any engine. Distributors do not have built in centrif­
ugal or vacuum assisted advance. B a s e ignition
timing and timing advance are controlled by the
powertrain control module (PCM). B e c a u s e a con­
ventional timing light can not be used to adjust dis­
tributor position after installation, note position of
distributor before removal.
(1) Disconnect negative battery cable at battery.
(2) Remove air cleaner assembly and connecting
tubes.
(3) Remove the spark plug cables and secondary
ignition coil cable at distributor cap. Mark position of
cables before removal. Position spark plug cables to
the side of engine.
(4) Remove distributor cap from distributor (two
screws).
(5) Mark the position of distributor housing in
relationship to engine or dash panel. This is done
to aid i n installation.
Before distributor is removed, the number one cyl­
inder 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. 13).
Fig. 13 Damper-To-Cover Alignment Marks—Typical
(8) The distributor rotor should now be aligned to
the CYL. NO. 1 alignment mark (stamped) into the
camshaft position sensor (Fig. 14). I f not, rotate the
crankshaft through another complete 360 degree
turn. Note the position of the number one cylinder
spark plug cable (on the cap) i n relation to rotor. Ro­
tor 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.
(11) Remove distributor holddown clamp bolt and
clamp (Fig. 15). Remove distributor from vehicle.
CAUTION: Do not crank engine with distributor re­
moved. Distributor/crankshaft relationship will be
l o s t