Chevrolet Tahoe, Suburban 2007 Spezifikationen PDF herunterladen (Seite 475)

100

101

5. Then replace the pressure cap. Be sure the

pressure cap is hand-tight and fully seated.

6. Verify coolant level after engine is shut off

and the coolant is cold. If necessary, repeat

coolant ﬁll procedure steps 1 through 6.

Engine Fan Noise

If 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 disengages.

You may also hear this fan noise when you

start the engine. It will go away as the fan clutch

partially disengages.

If your vehicle has electric cooling fans, you may

hear the fans spinning at low speed during most

everyday driving. The fans may turn off if no cooling

is required. Under heavy vehicle loading, trailer

towing, and/or high outside temperatures, or if you

are operating your air conditioning system, the fans

may change to high speed and you may hear an

increase in fan noise. This is normal and indicates

that the cooling system is functioning properly. The

fans will change to low speed when additional

cooling is no longer required.

475

1 2 ... 470 471 472 473 474 475 476 477 478 479 480 ... 621 622

Kommentare zu diesen Handbüchern

Keine Kommentare

Chevrolet Tahoe, Suburban 2007 Spezifikationen Seite 475

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Autos Chevrolet Tahoe, Suburban 2007