Dodge 2001 Ram 1500 Owner's Manual page 1446

BR/BE
OIL PRESSURE SENSOR/SWITCH (Continued)
INSTALLATION
(1) If the sensor is not being replaced, inspect the
o-ring (Fig. 156) and replace if necessary.
(2) Install the oil pressure sensor and tighten to 16
N·m (144 in. lbs.) torque.
(3) Connect the battery negative cables.
(4) Start engine and check for oil leaks at the sen-
sor.
Fig. 156 Oil Pressure Sensor and
1 - ENGINE OIL PRESSURE SENSOR
2 - O-RING
OIL PUMP
REMOVAL
(1) Disconnect the battery negative cables.
(2) Remove fan/drive assembly (Refer to 7 - COOL-
ING/ENGINE/RADIATOR FAN - REMOVAL).
(3) Remove the accessory drive belt (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL).
(4) Remove the fan support/hub assembly.
(5) Remove crankshaft damper (Fig. 157) (Refer to
9 - ENGINE/ENGINE
DAMPER - REMOVAL).
(6) Remove the gear housing cover (Fig. 158)
(Refer to 9 - ENGINE/VALVE TIMING/GEAR HOUS-
ING COVER - REMOVAL).
(7) Remove the four mounting bolts and pull the
pump from the bore in the cylinder block (Fig. 159).
CLEANING
Clean all parts in solvent and dry with compressed
air. Clean the old sealer residue from the back of the
gear housing cover and front of the gear housing.
BLOCK/VIBRATION
ENGINE 5.9L DIESEL
Fig. 157 Crankshaft Damper Removal/Installation
1 - DAMPER
2 - BOLT
Fig. 158 Gear Housing and Cover
1 - GEAR HOUSING
2 - GEAR HOUSING COVER
INSPECTION
Disassemble and inspect the oil pump as fol-
lows:
(1) Visually inspect the lube pump gears for chips,
cracks or excessive wear.
(2) Remove the back plate (Fig. 160).
(3) Mark TOP on the gerotor planetary using a felt
tip pen (Fig. 160).
(4) Remove the gerotor planetary (Fig. 160).
Inspect for excessive wear or damage. Inspect the
pump housing and gerotor drive for damaged and
excessive wear.
(5) Install the gerotor planetary in the original
position. The chamfer must be on the O.D. and down.
9 - 299