Jeep Wrangler: Cooling System / Cooling System Pressure Cap
The cap must be fully tightened to prevent loss
of engine coolant (antifreeze), and to ensure
that engine coolant will return to the radiator
from the coolant expansion bottle/recovery
tank if so equipped.
The cap should be inspected and cleaned if
there is any accumulation of foreign material on
the sealing surfaces.
WARNING!
- Do not open hot engine cooling system.
Never add engine coolant (antifreeze) when
the engine is overheated. Do not loosen or
remove the cap to cool an overheated
engine. Heat causes pressure to build up in
the cooling system. To prevent scalding or
injury, do not remove the pressure cap
while the system is hot or under pressure.
- Do not use a pressure cap other than the
one specified for your vehicle. Personal
injury or engine damage may result.
Your vehicle has been built with an improved
engine coolant (OAT coolant conforming to MS.90032) that allows extended
maintenance
intervals. This engine coolant (antifreeze) can
be used up to 10 years or 150,000 miles
(240,000 km) before replacement...
Used ethylene glycol-based coolant (antifreeze)
OAT or HOAT, is a regulated substance requiring
proper disposal. Check with your local
authorities to determine the disposal rules for
your community...
Other information:
Refer to the maintenance plan for the required maintenance intervals.
WARNING!
You can be badly injured working on or around a motor vehicle. Do
only service work for which you have the knowledge and the right equipment.
If
you have any doubt about your ability to perform a service job, take your
vehicle to a competent mechanic...
Always use carpet designed to fit your vehicle.
Only use carpet that does not interfere with the
operation of the pedal assemblies. Only operate
the vehicle when the carpet is securely
attached by the grommets so it cannot slip out
of position and interfere with the pedal
assemblies or impair safe operation of your
vehicle in other ways...