Air Conditioner Maintenance - Jeep WRANGLER 2020 Owner's Manual

When inspecting accessory drive belts, small
cracks that run across the ribbed surface of the
belt, from rib to rib, are considered normal.
These are not a reason to replace a 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.
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

Noise (objectionable squeal, squeak, or

rumble is heard or felt while drive belt is in
operation)
NOTE:
Identify and correct problem before new belt is
installed.
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.
SERVICING AND MAINTENANCE

Air Conditioner Maintenance

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.
WARNING!
Use only refrigerants and compressor lubri-

cants approved by the manufacturer for
your air conditioning system. Some unap-
proved refrigerants are flammable and can
explode, injuring you. Other unapproved
refrigerants or lubricants can cause the
system to fail, requiring costly repairs.
Refer to Warranty Information Book,
located in your owner's information kit, for
further warranty information.
The air conditioning system contains refrig-

erant under high pressure. To avoid risk of
personal injury or damage to the system,
adding refrigerant or any repair requiring
lines to be disconnected should be done by
an experienced technician.
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