Chrysler 300M Service Manual page 212

LH
HEATER SUPPLY TUBE - 2.7L
REMOVAL
WARNING: DO NOT REMOVE PRESSURE CAP
WITH THE SYSTEM HOT AND UNDER PRESSURE
BECAUSE SERIOUS BURNS FROM COOLANT CAN
OCCUR.
(1) Drain cooling system. (Refer to 7 - COOLING -
STANDARD PROCEDURE)
(2) Remove radiator upper crossmember. (Refer to
23 - BODY/EXTERIOR/GRILLE OPENING REIN-
FORCEMENT - REMOVAL)
(3) Remove radiator upper hose at tube.
(4) Remove heater hose from heater tube at rear of
engine.
(5) Disconnect heater tube from retaining clip at
rear of engine.
(6) Disconnect electrical connector from coolant
temperature sensor.
(7) Remove screws attaching heater tube to outlet
connector (Fig. 11).
(8) Disengage heater tube from outlet connector
(Fig. 11). To remove heater tube, move forward until
the tube clears cylinder heads.
INSTALLATION
(1) Inspect heater tube O-ring. Replace as neces-
sary.
(2) Lubricate O-ring with a silicone type grease
such as Mopar Dielectric Grease.
(3) Install the heater tube by inserting tube in-be-
tween cylinder heads. Insert tube into water outlet
housing (Fig. 11).
(4) Attach heater tube to the retaining clip at rear
of engine.
(5) Install attaching screws and tighten to 3 N·m
(30 in. lbs.).
(6) Install radiator upper and heater hoses to
heater tube.
(7) Connect electrical connector to coolant temper-
ature sensor.
(8) Install radiator upper crossmember. (Refer to
23 - BODY/EXTERIOR/GRILLE OPENING REIN-
FORCEMENT - INSTALLATION)
(9) Fill cooling system. (Refer to 7 - COOLING -
STANDARD PROCEDURE)
Fig. 11 Heater Supply Tube - Removal/Installation
1 - OUTLET CONNECTOR
2 - SCREW (2)
3 - HEATER TUBE
4 - O-RING
HEATER SUPPLY TUBE - 3.5L
REMOVAL
WARNING: DO NOT REMOVE PRESSURE CAP
WITH SYSTEM HOT AND UNDER PRESSURE
BECAUSE SERIOUS BURNS FROM COOLANT CAN
OCCUR.
(1) Drain cooling system. (Refer to 7 - COOLING -
STANDARD PROCEDURE)
(2) Remove upper and lower intake manifold.
(Refer to 9 - ENGINE/MANIFOLDS/INTAKE MANI-
FOLD - REMOVAL)
(3) Position lower intake manifold upside down on
bench and remove the tube retaining bolt (Fig. 12).
(4) Remove tube from manifold and discard O-ring.
ENGINE 7 - 25