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.
Power Steering Fluid
See Engine
Compartment Overview
on page 462 for
reservoir location.
When to Check Power Steering Fluid
It is not necessary to regularly check power
steering fluid unless you suspect there is a leak in
the system or you hear an unusual noise. A
fluid loss in this system could indicate a problem.
Have the system inspected and repaired.
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Содержание 2007 Yukon XL
Страница 6: ...These are some examples of symbols that may be found on the vehicle 6...
Страница 40: ...Put someone on it Get it up to speed Then stop the vehicle The rider does not stop 40...
Страница 114: ...NOTES 114...
Страница 202: ...Instrument Panel Overview United States version shown Canada similar 202...
Страница 358: ...NOTES 358...
Страница 591: ...Engine Drive Belt Routing 591...
Страница 593: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance I or Maintenance II Services Performed 593...
Страница 594: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance I or Maintenance II Services Performed 594...