Dodge Intrepid Service Manual page 303

9 - 68 ENGINE 2.7L
OIL PRESSURE RELIEF VALVE (Continued)
Fig. 93 Oil Pressure Relief Valve
1 - RELIEF VALVE
2 - SPRING
3 - RETAINER CAP
34 mm (1.34 in.). Replace spring that fails to meet
specifications.
INSTALLATION
(1) Lubricate relief valve with oil.
CAUTION: The pressure relief valve must be
installed as shown in (Fig. 93), or engine damage
may occur.
(2) Install relief valve, spring and retainer cap
(Fig. 93). Tighten cap to 12 N·m (105 in. lbs.).
(3) Install the oil pan. (Refer to 9 - ENGINE/LU-
BRICATION/OIL PAN - INSTALLATION)
OIL PRESSURE SWITCH
DESCRIPTION
The engine oil pressure switch is located on the
right side of the engine block. The switch screws into
the engine main oil gallery. The normally closed
switch provides an input through a single wire to the
low pressure indicator light on the instrument clus-
ter.
OPERATION
The oil pressure switch provides a ground for the
instrument cluster low oil pressure indicator light.
The switch receives oil pressure input from the
engine main oil gallery. When engine oil pressure is
greater than 27.5 Kpa (4 psi), the switch contacts
open, providing a open circuit to the low pressure
indicator light. For wiring circuits and diagnostic
information, (Refer to Appropriate Wiring/Diagnostic
Information).
REMOVAL
(1) Raise vehicle on hoist.
(2) Position an oil collecting container under
switch location.
(3) Disconnect electrical connector.
(4) Remove switch by unscrewing from the engine
block.
INSTALLATION
(1) Apply Mopar Thread Sealant to the switch
threads.
(2) Install oil pressure switch.
(3) Connect electrical connector.
(4) Lower vehicle.
(5) Start engine and check for leaks.
(6) Check engine oil level and adjust as neccessary.
OIL PUMP
REMOVAL
The oil pump pressure relief valve can be serviced
by removing the oil pan.
(1) Remove crankshaft vibration damper. (Refer to
9 - ENGINE/ENGINE
DAMPER - REMOVAL)
(2) Remove timing chain cover. (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - REMOVAL)
(3) Remove timing chain and sprockets. (Refer to 9
- ENGINE/VALVE TIMING/TIMING BELT/CHAIN
AND SPROCKETS - REMOVAL)
(4) Remove oil pan. (Refer to 9 - ENGINE/LUBRI-
CATION/OIL PAN - REMOVAL)
(5) Remove oil pick-up tube and O-ring (Fig. 95).
(6) Ensure that crankshaft position is at 60° ATDC
of No.1 cylinder, or crankshaft sprocket mark aligns
with mark on oil pump (Fig. 94). This position will
properly locate oil pump upon installation.
(7) Remove oil pump attaching bolts (Fig. 95).
(8) Remove oil pump.
DISASSEMBLY
(1) Remove the pressure relief valve by remove the
threaded retaining cap from the oil pump housing.
LH
BLOCK/VIBRATION