Jeep 2011 Liberty User Manual download pdf (Page 461)

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101

rusty in appearance, the system should be drained,

flushed, and refilled with fresh coolant. Check the front

of the A/C condenser (if equipped) or radiator for any

accumulation of bugs, leaves, etc. If dirty, clean by gently

spraying water from a garden hose vertically down the

face of the A/C condenser (if equipped) or the back of the

radiator core.

Check the engine cooling system hoses for brittle rubber,

cracking, tears, cuts, and tightness of the connection at

the coolant recovery bottle and radiator. Inspect the

entire system for leaks.

With the engine at normal operating temperature (but

not running), check the cooling system pressure cap for

proper vacuum sealing by draining a small amount of

engine coolant (antifreeze) from the radiator drain cock.

If the cap is sealing properly, the engine coolant (anti-

freeze) will begin to drain from the coolant recovery

bottle. DO NOT REMOVE THE COOLANT PRESSURE

CAP WHEN THE COOLING SYSTEM IS HOT.

Cooling System – Drain, Flush, And Refill

If the engine coolant (antifreeze) is dirty or contains a

considerable amount of sediment, clean and flush with a

reliable cooling system cleaner. Follow with a thorough

rinsing to remove all deposits and chemicals. Properly

dispose of the old engine coolant (antifreeze).

Refer to the “Maintenance Schedule” for the proper

maintenance intervals.

Selection Of Engine Coolant

Use only the manufacturer’s recommended engine cool-

ant (antifreeze). Refer to “Fluids, Lubricants, and Genu-

ine Parts” in “Maintaining Your Vehicle” for further

information.

MAINTAINING YOUR VEHICLE 459

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Jeep 2011 Liberty User Manual Page 461

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