Brake System - Jeep H6 Manual

23_H6_OM_EN_IN_t.book Page 265
radiator and being vaporized when the thermostat
opens, allowing hot engine coolant (antifreeze) to
enter the radiator.
If an examination of your engine compartment
shows no evidence of radiator or hose leaks, the
vehicle may be safely driven. The vapor will soon
dissipate.
Do not overfill the coolant expansion bottle.

Before the onset of freezing weather (where

applicable) check the condition of coolant in
radiator and coolant expansion bottle. If the
coolant needs to be added, the contents of the
coolant expansion bottle must also be protected
against freezing Ú page 263.
Check the coolant freeze point in the radiator

and in the coolant expansion bottle. If engine
coolant needs to be added, the contents of the
coolant expansion bottle must also be protected
against freezing.
If frequent engine coolant additions are

required, the cooling system should be pressure
tested for leaks.
Maintain engine coolant concentration at a

minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corro-
sion protection of your engine which contains
aluminum components.
Make sure that the coolant expansion bottle

overflow hoses are not kinked or obstructed.
Keep the front of the radiator clean. If your

vehicle is equipped with air conditioning, keep
the front of the condenser clean.
Do not change the thermostat for Summer or

Winter operation. If replacement is ever neces-
sary, install ONLY the correct type thermostat.
Other designs may result in unsatisfactory
engine cooling performance, poor gas mileage,
and increased emissions.
B S
RAKE YSTEM
In order to ensure brake system performance, all
brake system components should be inspected
periodically. Refer to the "Service and Warranty
Handbook" for the proper maintenance intervals.
SERVICING AND MAINTENANCE
WARNING!
Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting
or riding on the brake pedal can result in
abnormally high brake temperatures, excessive
lining wear, and possible brake damage. You
would not have your full braking capacity in an
emergency.
Brake Master Cylinder
The fluid in the master cylinder should be checked
when performing under hood services or
immediately if the Brake Warning Light is
illuminated.
Be sure to clean the top of the master cylinder area
before removing the cap. If necessary, add fluid to
bring the fluid level up to the requirements
described on the brake fluid reservoir. With disc
brakes, fluid level can be expected to fall as the
brake pads wear. Brake fluid level should be
checked when pads are replaced. However, low
fluid level may be caused by a leak and a checkup
may be needed.
265