Vacuum Reservoir; Operation; Removal; Installation - Chrysler 300M 2002 Service Manual

8P - 6 SPEED CONTROL

VACUUM RESERVOIR

DESCRIPTION
The vacuum reservoir is located in the engine com-
partment. It is made of plastic.

OPERATION

The reservoir stores engine vacuum. Manifold vac-
uum is supplied from the brake booster check valve.
The speed control vacuum supply hose has a check
valve at the source (brake booster) to maintain the
highest available vacuum level in the servo, reservoir
and vacuum hoses. When engine vacuum drops, as in
climbing a grade while driving, the reservoir supplies
the vacuum needed to maintain proper speed control
operation. The vacuum reservoir cannot be repaired
and must be replaced if faulty.

REMOVAL

(1) Disconnect the negative battery cable.
(2) Remove the Powertrain Control Module (PCM)
refer to the Fuel Injection System section.
(3) Remove and reposition coolant reservoir.
(4) Remove PDC and bracket.
(5) Remove vacuum reservoir.
(6) Disconnect vacuum hose

INSTALLATION

(1) Connect vacuum hose.
(2) Install vacuum reservoir and tighten fasteners.
(3) Install PDC and bracket and tighten fasteners.
(4) Install coolant reservoir.
(5) Install PCM refer to the Fuel Injection System
section.
(6) Connect the negative battery cable.
LH