Dodge RAM TRUCK 1500 1995 Service Manual page 398

BR _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ IGNITION SYSTEMS 8D - 25
(5) Remove 2 EGR valve mounting bolts and re­
move EGR valve. Discard old EGR gasket.
(6) Disconnect electrical connector at engine oil
pressure sending unit.
(7) To prevent damage to oil pressure sending unit,
a special tool, such as number 0-4597 must be used
(Fig. 7). Remove sending unit from engine.
SPECIAL TOOL
C-4597
OIL PRESSURE
SENDING UNIT
Fig. 7 Oil Pressure Sending Unit—Removal
Installation
(8) Loosen EGR tube mounting nut at intake man­
ifold.
(9) Remove 2 EGR tube mounting bolts at exhaust
manifold (Fig. 6) and remove EGR tube. Discard old
gasket at exhaust manifold.
(10) Disconnect crankshaft position sensor pigtail
harness from main wiring harness.
(11) Remove 2 sensor (recessed hex head) mount­
ing bolts (Fig. 6) and remove sensor.
INSTALLATION
(1) Position crankshaft position sensor to engine
and install mounting bolts. Tighten bolts to 8 N-m
(70 in. lbs.) torque.
(2) Connect main harness electrical connector to
sensor.
(3) Clean the EGR tube and exhaust manifold (at
EGR tube mounting point) of any old gasket mate­
rial.
(4) Install a new gasket to exhaust manifold end of
EGR tube and install EGR tube to both manifolds.
Tighten mounting nut at intake manifold. Tighten 2
mounting bolts at exhaust manifold to 23 N-m (204
in. lbs.) torque.
(5) Coat the threads of the oil pressure sending
unit with thread sealant. Do not allow any of the
thread sealant to get into the sending unit opening,
or the opening at the engine. Install sending unit to
engine and tighten to 14 N-m (130 in. lbs.) torque. In­
stall electrical connector to sending unit.
(6) Clean the intake manifold and EGR valve of
any old gasket material.
(7) Install a new EGR valve gasket at intake man­
ifold.
(8) Install EGR valve to intake manifold. Tighten 2
bolts to 23 N-m (200 in. lbs.) torque.
(9) Position EGR valve control and install its elec­
trical connector. Connect hoses between EGR valve
and EGR valve control. Connect hose between main
vacuum harness and control valve.
(10) Install spark plug cable loom and spark plug
cables to valve cover mounting stud.
(11) Install the air cleaner housing and plastic air
intake tube.
CRANKSHAFT POSITION SENSOR—8.0L V-10
ENGINE
The crankshaft position sensor is located on the
right-lower side of the cylinder block, forward of the
right engine mount, just above the oil pan rail (Fig.
8).
J948D-1
Fig. 8 Crankshaft Position Sensor—8.0L V-10
Engine—Typical
mmowAL
(1) Raise and support the vehicle.
(2) Disconnect the sensor harness connectors.
(3) Remove the sensor mounting bolt (Fig. 9).
(4) Carefully pry the sensor from the cylinder block
in a rocking action with two small screwdrivers.
(5) Remove the sensor from vehicle.
(6) Check condition of sensor o-ring (Fig. 10).
INSTALLATION
(1) Apply a small amount of engine oil to the sen­
sor o-ring (Fig. 10).