SECTION 18 – RADIATOR AND COOLANT SYSTEM (DIESEL)
18
DANGER
• See General Warnings, Section 1, Page 1-2.
WARNING
• See General Warnings, Section 1, Page 1-2.
GENERAL INFORMATION
See General Warnings, Section 1, Page 1-2.
The diesel vehicle is equipped with a cooling system that includes a radiator, an electric radiator fan, a reservoir, and a
circulating system. This cooling system circulates coolant through the engine and across a thermostat.
ENGINE COOLANT LEVEL CHECK
See Engine Coolant – Diesel Vehicles, Section 10, Page 10-16.
ENGINE COOLANT CHANGE
1.
Disconnect battery.
See Disconnecting the Battery – Gasoline/Diesel Vehicles, Section 1, Page 1-3.
2.
Raise the hood and remove the reservoir cap.
See following WARNING.
WARNING
• Coolant reservoir and radiator are pressurized. Remove caps slowly to relieve pressure.
• Hot! Coolant system is pressurized. Do not remove radiator cap while engine is hot.
3.
Place a large drain pan under the radiator and engine drain plugs.
4.
Turn the drain valve at the radiator counterclockwise, for one and one-half turns only, to drain coolant from
radiator.
See following NOTE.
NOTE:
The radiator drain valve does not have a drain
stop
position. It can be removed from the radiator if turned
more than one and one-half rotations.
5.
Turn the drain valve on the engine counterclockwise to drain coolant
.
6.
Remove the engine block coolant plug from the top rear of engine
.
See following
NOTE.
NOTE:
Removing the block plug allows air to escape during the fill process without forming an air lock to coolant flow.
7.
Check the hoses and clamps for looseness or damage. Replace if necessary.
2008-2012 All-Wheel Drive Maintenance and Service Manual
Page 18-1
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