Jeep Wrangler: STARTING AND OPERATING / ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and
permits quicker starts in cold weather. Connect
the cord to a standard 110-115 Volt AC
electrical outlet with a grounded, three-wire
extension cord.
Diesel Engine Block Heater Cord Location
The engine block heater cord is found under the
hood bundled up next to the Power Distribution
Center (PDC).
For diesel engines, its use is recommended for
environments that routinely fall below -10°F
(-23°C). It should be used when the vehicle has
not been running for long periods of time and
should be plugged in two hours prior to start. Its
use is required for cold starts with temperatures
under -20°F (-28°C).
The engine block heater cord is found under the
hood bundled in front of the battery tray.
WARNING!
Remember to disconnect the engine block
heater cord before driving. Damage to the
110-115 Volt AC electrical cord could cause
electrocution.
All engine failures give some warning before the
parts fail. Be on the alert for changes in
performance, sounds, and visual evidence that
the engine requires service...
A long break-in period is not required for the
engine and drivetrain (transmission and axle) in
your vehicle.
Drive moderately during the first 300 miles
(500 km)...
Other information:
Tachometer
Indicates the engine speed in revolutions
per minute (RPM x 1000).
CAUTION!
Do not operate the engine with the
tachometer pointer in the red area. Engine
damage will occur.
Temperature Gauge
The temperature gauge shows engine
coolant temperature...
Temperature Control regulates the temperature
of the air forced through the climate system.
The temperature increases as you
turn the temperature control knob
clockwise.
The temperature decreases as you
turn the temperature control knob
counterclockwise...