![Chevrolet 2007 TrailBlazer Owner'S Manual Download Page 422](http://html.mh-extra.com/html/chevrolet/2007-trailblazer/2007-trailblazer_owners-manual_2597055422.webp)
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 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.
Power Steering Fluid
See
Engine
Compartment Overview
on page 392
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.
422
Summary of Contents for 2007 TrailBlazer
Page 6: ...These are some examples of symbols that may be found on the vehicle 6 ...
Page 92: ... NOTES 92 ...
Page 167: ... NOTES 167 ...
Page 168: ...Instrument Panel Overview 168 ...
Page 298: ... NOTES 298 ...
Page 378: ... NOTES 378 ...
Page 394: ...When you open the hood on the 5 3L V8 engine here is what you will see 394 ...
Page 396: ...When you open the hood on the 6 0L V8 TrailBlazer SS engine here is what you will see 396 ...
Page 512: ... NOTES 512 ...
Page 531: ...Engine Drive Belt Routing 4 2L V6 Engine 5 3L V8 and 6 0L V8 Engines 531 ...