Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 261
5. Lower vehicle.
5.7L ENGINE
1. Thoroughly clean cylinder block core hole and
block heater seat.
2. Insert block heater assembly into the block.
3. With block heater fully seated, tighten bolt to 2 N·m
(17 in. lbs.) torque.
7 - 48
ENGINE
LX
ENGINE COOLANT TEMP SENSOR
REMOVAL
2.7L ENGINE
1. Disconnect negative battery cable.
2. Partially drain cooling system (Refer to 7 - COOL-
ING - STANDARD PROCEDURE).
3. Disconnect the electrical connector (2).
4. Remove engine coolant sensor (1) from coolant
outlet tube (3).
3.5L ENGINE
1. Disconnect negative battery cable.
2. Partially drain cooling system (Refer to 7 - COOL-
ING - STANDARD PROCEDURE).
3. With the engine cold, disconnect coolant sensor
electrical connector.
4. Remove sensor (2).
LX
ENGINE
7 - 49
5.7L/6.1L ENGINE
The Engine Coolant Temperature (ECT) sensor (3) on
the 5.7L/6.1L engine is located under the air condition-
ing compressor. It is installed into a water jacket at the
front of the cylinder block .
WARNING: Hot, pressurized coolant can cause
injury by scalding. Cooling system must be par-
tially drained before removing the coolant temper-
ature sensor.
1. Partially drain the cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE).
2. Remove accessory drive belt (Refer to 7 - COOL-
ING/ACCESSORY
DRIVE/DRIVE
BELTS
-
REMOVAL).
3. Carefully unbolt air conditioning compressor from
front of engine. Do not disconnect any A/C hoses
from compressor. Temporarily support compressor
to gain access to ECT sensor (3).
4. Disconnect electrical connector (2) from sensor (3).
5. Remove sensor (3) from cylinder block.
3.0L DIESEL
WARNING: Risk of injury to skin and eyes from
scalding with hot coolant. Risk of poisoning from
swallowing coolant. Do not open cooling system
unless coolant temperature is below 90°C. Open
cap slowly to release pressure. Store coolant in
suitable and appropriately marked container. Wear
protective gloves, clothes and eye wear.
1. Disconnect negative battery cable.
2. Remove engine cover (Refer to 9 - ENGINE -
REMOVAL).
3. Partially drain coolant system (Refer to 7 - COOL-
ING - STANDARD PROCEDURE).
4. Unplug coolant temperature sensor electrical con-
nector.
NOTE: Capture any residual coolant that may flow.
5. Remove coolant temperature sensor (2).
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ENGINE
LX
INSTALLATION
2.7L ENGINE
1. Apply thread sealant to sensor threads.
2. Install engine coolant temperature sensor (1) into
coolant outlet tube (3).
3. Tighten sensor to 28 N·m (20 ft. lbs.) torque.
4. Connect electrical connector (2) to engine coolant
temperature sensor (1).
3.5L ENGINE
1. Install engine coolant temperature sensor (2).
Tighten sensor to 28 N·m (20 ft. lbs.) torque.
2. Attach electrical connector to sensor.
3. Connect negative battery cable.
LX
ENGINE
7 - 51
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