Air Conditioner Maintenance; Accessory Belt (Serpentine Belt); SERVICING AND MAINTENANCE- Page 379

2018 Jeep Wrangler JK Owner Manual

Table of Contents

GETTING TO KNOW YOUR VEHICLE
GETTING TO KNOW YOUR INSTRUMENT PANEL
SAFETY
OCCUPANT RESTRAINT SYSTEMS
STARTING AND OPERATING
SERVICING AND MAINTENANCE
MULTIMEDIA
UCONNECT PHONE — IF EQUIPPED
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When inspecting accessory drive belts, small cracks that

run across ribbed surface of 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.

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 posi-

tion 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.

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.

Accessory Belt (Serpentine Belt)

8

SERVICING AND MAINTENANCE

377

Detailed Information for 2018 Jeep Wrangler JK Owner Manual

Lists of information found in 2018 Jeep Wrangler JK Owner Manual - Page 379

  • 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 posi- tion 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.

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