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

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358
SERVICING AND MAINTENANCE
Engine Air Cleaner Filter Selection
The quality of replacement filters varies
considerably. Only high quality Mopar® certified
filters should be used.
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 equipment. If you have any
doubt about your ability to perform a
service job, take your vehicle to a compe-
tent 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 sepa-
rated 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.

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