Accessory Drive Belt Inspection; Air Conditioner Maintenance - Chrysler Pacifica 2021 Owner's Manual

320 SERVICING AND MAINTENANCE
A D B I
CCESSORY RIVE ELT
WARNING!
Do not attempt to inspect an accessory drive

belt with vehicle running.
When working near the radiator cooling fan,

disconnect the fan motor lead. The fan is
temperature controlled and can start at any
time regardless of ignition mode. You could be
injured by the moving fan blades.
You can be badly injured working on or around

a motor vehicle. Only do service work for which
you have the knowledge and the proper equip-
ment. If you have any doubt about your ability
to perform a service job, take your vehicle to a
competent mechanic.
When inspecting accessory drive belts, small
cracks that run across the ribbed surface of a belt
from rib to rib, are considered normal. These are
not a reason to replace belt. However, cracks
running along a rib (not across) are not normal. Any
belt with cracks running along a rib must be
replaced. Also, have the belt replaced if it has
excessive wear, frayed cords, or severe glazing.
NSPECTION
Accessory Belt (Serpentine Belt)
Conditions that would require replacement:
Rib chunking (one or more ribs has separated

from belt body)
Rib or belt wear

Longitudinal belt cracking

(cracks between two ribs)
Belt slips

"Groove jumping" (belt does not maintain

correct position on pulley)
Belt broken

NOTE:
Identify and correct problem before new belt is
installed
Noise (objectionable squeal, squeak, or rumble

is heard or felt while drive belt is in operation).
Some conditions can be caused by a faulty
component such as a belt pulley. Belt pulleys
should be carefully inspected for damage and
proper alignment.
Belt replacement on some models requires the
use of special tools; we recommend having your
vehicle serviced at an authorized dealer.
A C M
IR ONDITIONER AINTENANCE
For best possible performance, your air conditioner
should be checked and serviced by an authorized
dealer at the start of each warm season. This
service should include cleaning of the condenser
fins and a performance test. Drive belt tension
should also be checked at this time.