Jeep Wrangler 2020 Owner's Manual page 491

Engine Air Cleaner Filter Installation
NOTE:
Inspect and clean the housing if dirt or debris is present
before replacing the air filter element.
1. Install the air cleaner filter element into the housing
assembly with the air cleaner filter inspection surface
facing downward.
2. Tighten air cleaner cover retainers using a suitable tool.
Accessory Drive Belt Inspection
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 competent mechanic.
SERVICING AND MAINTENANCE
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)
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