Dodge ram truck 3500 1996 Service Manual page 1296

1 4 - 6 2 FUEL S Y S T E M
BR
REMOVAL AND INSTALLATION (Continued)
INSTALLATION
(1) Install solenoid to mounting bracket.
(2) Install wiring connector to solenoid.
(3) Install vacuum harness to solenoid.
(4) Install air cleaner housing to throttle body.
(5) Install 4 air cleaner housing mounting nuts.
Tighten nuts to 11 N-m (96 in. lbs.) torque.
(6) Install air cleaner housing cover.
POWERTRAIN CONTROL M O i U L E (PCM)
The PCM Is located in the engine compartment
(Fig. 90).
Fig. 90 PCM Location and Mounting
REMOVAL
(1) Disconnect the negative battery cable at bat­
tery.
(2) Carefully unplug the three 32-way connectors
from PCM.
(3) Remove three PCM mounting bolts and remove
PCM from vehicle.
INSTALLATION
(1) Install PCM and mounting bolts to vehicle.
(2) Tighten bolts to 4 N-m (35 in. lbs.).
(3) Check pin connectors in the PCM and the three
32-way connectors for corrosion or damage. Repair
as necessary.
(4) Install three 32-way connectors.
(5) Install battery cable.
CRANKSHAFT POSITION SENSOR
Refer to Group 8D, Ignition System for removal/In­
stallation procedures.
CAMSHAFT POSITION SENSOR
For removal/installation procedures, refer to Group
8D, Ignition System. See Camshaft Position Sensor.
OXYGEN S E N S O R S — 3 . 9 L / 5 . 2 L / 5 . 9 L LDC/HDC
ENGINES
On 3.9L/5.2L/5.9L LDC engines, the upstream and
downstream 02S sensors are located at the inlet and
outlet ends of the catalytic converter (Fig. 91).
On 5.9L HDC engines, the left and right 02S sen­
sors are located on the left and right exhaust down-
pipes (Fig. 92).
DOWN STREAM UP STREAM
OXYGEN OXYGEN
SENSOR SENSOR
80570e21
Fig. 91 Oxygen Sensor Location—3.9U5.2U5.9L
LDC ENGINES
Fig. 92 Oxygen Sensor Location—5.9L HDC
ENGINES
REMOVAL
WARNING: THE EXHAUST MANIFOLD, EXHAUST
PIPES AND CATALYTIC CONVERTER B E C O M E
VERY HOT DURING ENGINE OPERATION. ALLOW
ENGINE TO COOL B E F O R E REMOVING OXYGEN
SENSOR.
(1) Raise and support the vehicle.
(2) Disconnect the wire connector from the 02S
sensor.