Chevrolet 1999 Express Van Spezifikationen PDF herunterladen (Seite 274)

100

101

If the temperature overheat gage is no longer in the

overheat zone or an overheat warning no longer

displays, the vehicle can be driven. Continue to drive

the vehicle slow for about 10 minutes. Keep a safe

vehicle distance from the car in front of you. If the

warning does not come back on, continue to drive

normally.

If the warning continues, pull over, stop, and park the

vehicle right away.

If there is still no sign of steam, push down the

accelerator until the engine speed is about twice as

fast as normal idle speed for at least three minutes while

you are parked. If you still have the warning, turn off

the engine until it cools down.

You may decide not to lift the hood but to get service

help right away.

Engine Fan Noise

Your 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 fan is spinning slower and the clutch is not fully

engaged. This improves fuel economy and reduces fan

noise. Under heavy vehicle loading, trailer towing, and/or

high outside temperatures, the fan speed increases as

the clutch more fully 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 partially disengages.

You may also hear this fan noise when you start the

engine. It will go away as the fan clutch partially

disengages.

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