Chrysler Concorde 2004 Service Manual page 1567

LH
COOLANT RECOVERY PRESSURE CONTAINER (Continued)
Fig. 3 COOLANT BOTTLE LOCATION
1 - COOLANT RECOVERY PRESSURE BOTTLE
2 - PRESSURE CAP
ENGINE BLOCK HEATER
DESCRIPTION
The engine block heater is mounted in the cylinder
block, near the right rear corner (Fig. 4). The block
heater is a dry cylinder type design and is powered
by 110 volt AC. The power cord must be secured
in its retainer clips, and not positioned so it
could contact linkages or exhaust manifolds
and become damaged.
OPERATION
When power is applied (110 volt AC) to the block
heater, the heating element transfers heat through
the aluminum engine block and into the coolant
without directly penetrating the cooling system.
DIAGNOSIS AND TESTING - ENGINE BLOCK
HEATER
If unit does not operate, trouble can be in either
the power cord or the heater element. Test power
cord for continuity with a 110-volt voltmeter or 110-
volt test light; test heater element continuity with an
ohmmeter or 12-volt test light.
REMOVAL
(1) Raise vehicle on hoist.
(2) Detach power cord plug from heater (Fig. 4).
(3) Remove block heater attaching screw located
below heater terminals.
(4) Remove block heater from cylinder block.
INSTALLATION
(1) Thoroughly clean cylinder block heater cavity.
(2) Insert heater assembly into block such that
mounting hole is located below heater terminals.
(3) Install mounting screw and tighten to 12 N·m
(105 in. lbs.).
(4) Attach power cord to heater.
Fig. 4 ENGINE BLOCK HEATER
1 - BLOCK HEATER
2 - ENGINE — RIGHT SIDE
CAUTION: To prevent damage, the power cord must
be secured in its retainer clips, and not positioned
so it could contact linkages or exhaust manifolds.
(5) Lower vehicle.
ENGINE COOLANT
TEMPERATURE SENSOR
DESCRIPTION
The engine coolant temperature sensor threads
into the coolant system (Fig. 5) or (Fig. 6).
Fig. 5 ENGINE COOLANT TEMPERATURE SENSOR -
1 - ENGINE COOLANT TEMPERATURE SENSOR
2 - CAMSHAFT POSITION SENSOR
ENGINE 7 - 21
2.7L