Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 1507
SWITCH-OIL PRESSURE
DESCRIPTION
The engine oil pressure switch (1) 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 cluster.
REMOVAL
1. Raise vehicle on hoist.
2. Remove lower splash shield.
3. Disconnect oil pressure switch (1) electrical con-
nector.
4. Position an oil collecting container under switch
location.
5. Remove switch by unscrewing from the engine
block.
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ENGINE - 2.7L DOHC - SERVICE INFORMATION
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INSTALLATION
1. Apply
Mopar
T
Thread
Sealant
to
the
switch
threads.
2. Install oil pressure switch (1).
3. Connect electrical connector.
4. Lower vehicle.
5. Start engine and check for leaks.
6. Check engine oil level and adjust as neccessary.
LX
ENGINE - 2.7L DOHC - SERVICE INFORMATION
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PUMP-OIL
REMOVAL
1. Remove crankshaft vibration damper (Refer to 9 -
ENGINE/ENGINE BLOCK/VIBRATION 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/LUBRICA-
TION/OIL PAN - REMOVAL).
5. Remove oil pick-up tube (3) and O-ring (2).
6. Ensure that crankshaft position is at 60° ATDC of
No.1 cylinder, or crankshaft sprocket mark aligns
with mark on oil pump (1). This position will prop-
erly locate oil pump upon installation.
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ENGINE - 2.7L DOHC - SERVICE INFORMATION
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7. Remove oil pump attaching bolts (1).
8. Remove oil pump (5).
DISASSEMBLY
NOTE: DO NOT remove oil pressure relief valve. If the oil pressure relief valve is suspect, replace the oil
pump assembly.
1. Remove oil pump cover screws (2) and lift off oil
pump cover (1).
2. Remove inner pump rotor (3) and outer pump rotor
(5).
3. Wash all parts in a suitable solvent.
4. Inspect components carefully for damage or wear
(Refer to 9 - ENGINE/LUBRICATION/OIL PUMP -
INSPECTION).
CLEANING
1. Clean all parts thoroughly in a suitable solvent.
INSPECTION
NOTE: DO NOT remove oil pressure relief valve. If the oil pressure relief valve is suspect, replace the oil
pump assembly.
LX
ENGINE - 2.7L DOHC - SERVICE INFORMATION
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