Jeep 2007 Grand Cherokee Manuel d'utilisateur télécharger pdf (Page 381)

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101

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 recovery bottle.

•

Check antifreeze/coolant freeze point in the radiator

and in the coolant recovery bottle. If antifreeze/

coolant needs to be added, contents of coolant recov-

ery bottle must also be protected against freezing.

•

If frequent antifreeze/coolant additions are required,

or if the level in the coolant recovery bottle does not

drop when the engine cools, the cooling system should

be pressure tested for leaks.

•

Maintain antifreeze/coolant concentration at 50%

HOAT antifreeze/coolant (minimum) and distilled

water for proper corrosion protection of your engine

which contains aluminum components.

•

Make sure that the radiator and coolant recovery

bottle 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, also.

•

Do not change the thermostat for summer or winter

operation. If replacement is ever necessary, install

ONLY the correct type thermostat. Other designs may

result in unsatisfactory cooling performance, poor gas

mileage, and increased emissions.

Hoses and Vacuum/Vapor Harnesses

Inspect surfaces of hoses and nylon tubing for evidence

of heat and mechanical damage. Hard or soft spots,

brittle rubber, cracking, tears, cuts, abrasions, and exces-

sive swelling indicate deterioration of the rubber.

MAINTAINING YOUR VEHICLE 381

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Jeep 2007 Grand Cherokee Manuel d'utilisateur Page 381

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