Gmc 2007 Canyon Bedienungsanleitung PDF herunterladen (Seite 347)

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6. Start the engine and let it run until you can

feel the upper radiator hose getting hot.

Watch out for the engine cooling fan.

7. By this time, the coolant level inside the

radiator ﬁller neck might be lower. If the level is

lower, add more of the proper DEX-COOL

coolant mixture through the ﬁller neck until the

level reaches the base of the ﬁller neck.

8. Then replace the pressure cap.

At any time during this procedure if coolant begins

to ﬂow out of the ﬁller neck, reinstall the pressure

cap. Be sure to secure it tightly.

Engine Fan Noise

This vehicle has a clutched engine cooling fan.

When the clutch is engaged, the fan spins faster to

provide more air to cool the engine. In most

everyday driving conditions, the clutch is not

engaged. This improves fuel economy and reduces

fan noise. Under heavy vehicle loading, trailer

towing and/or high outside temperatures, the fan

speed increases when the clutch engages. So you

may hear an increase in fan noise. This is

normal and should not be mistaken as the

transmission slipping or making extra shifts. It is

merely the cooling system functioning properly.

The fan will slow down when additional cooling is

not required and the clutch disengages.

You may also hear this fan noise when you start

the engine. It will go away as the fan clutch

disengages.

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