Dodge ram truck 3500 1996 Service Manual page 1297

B R
FUEL SYSTEM 14 - 68
REMOVAL AND INSTALLATION (Continued)
CAUTION: When disconnecting the sensor electri­
cal connector, do not pull directly on wire going
into sensor.
(3) Remove the 02S sensor. Snap-On oxygen sen­
sor wrench (number YA 8875) may be used for
removal and installation.
INSTALLATION
Threads of new oxygen sensors are factory coated
with anti-seize compound to aid i n removal. DO
NOT add any additional anti-seize compound to
the threads of a new oxygen sensor.
(1) Install the 02S sensor. Tighten to 30 N-m (22
ft. lbs.) torque.
(2) Connect the 02S sensor wire connector.
(3) Lower the vehicle.
OXYGEN SENSORS—8.0L ENGINES
On 8.0L MDC engines, the pre-catalyst and post
catalyst 02S sensors are located at the Inlet and out­
let ends of the catalytic converter (Fig. 93).
On 8.0L MDC or HDC engines, the left and right
02S sensors are located on the left and right exhaust
downpipes (Fig. 94).
POST CATALYST PRE-CATALYST
OXYGEN OXYGEN
805dd850
Fig. 93 Pre-Catalyst/Post Catalyst Oxygen Sensor
Location—8.0L MDC Engines Only
REMOVAL
WARNING: THE EXHAUST MANIFOLD, EXHAUST
PIPES AND CATALYTIC CONVERTER BECOME
VERY HOT DURING ENGINE OPERATION. ALLOW
ENGINE TO COOL BEFORE REMOVING OXYGEN
SENSOR.
(1) Raise and support the vehicle.
(2) Disconnect the wire connector from the 02S
sensor.
Fig. 94 Left/Right Oxygen Sensor Location—All 8.0L
Engines
CAUTION: When disconnecting the sensor electri­
cal connector, do not pull directly on wire going
into sensor.
(3) Remove the 02S sensor. Snap-On oxygen sen­
sor wrench (number YA 8875) may be used for
removal and installation.
INSTALLATION
Threads of new oxygen sensors are factory coated
with anti-seize compound to aid in removal. DO
NOT add any additional anti-seize compound to
the threads of a new oxygen sensor.
(1) Install the 02S sensor. Tighten to 30 N-m (22
ft. lbs.) torque.
(2) Connect the 02S sensor wire connector.
(3) Lower the vehicle.
AIR CLEANER HOUSING/AIR CLEANER ELEMENT
(FILTER)—3.9L/5.2L/5.9L ENGINES
For air cleaner element required maintenance
schedules (listed in time or mileage intervals), refer
to Group 0, Lubrication and Maintenance.
REMOVAL/INSTALLATION
CAUTION: Do not attempt to remove the air
cleaner element (filter) from the housing by remov­
ing the top cover only. To prevent damage to the air
cleaner housing, the entire air cleaner housing
assembly must be removed from the engine for air
cleaner element replacement.
(1) Remove the air inlet tube (Fig. 95) at the side
of the air cleaner housing.
(2) A band-type screw clamp secures the air
cleaner housing to the throttle body. Loosen, but do