2009 GMC Canyon Owners Manual PDF | Page 281

If No Steam is Coming from the Engine
Compartment
If an engine overheat warning is displayed but no steam
can be seen or heard, the problem may not be too
serious. Sometimes the engine can get a little too hot
when the vehicle:
? Climbs a long hill on a hot day.
? Stops after high-speed driving.
? Idles for long periods in traffic.
? Tows a trailer. See ?Driving on Grades? under
Towing a Trailer on page 4-47.
If the overheat warning is displayed with no sign of steam:
1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and
to the highest fan speed. Open the windows as
necessary.
3. In heavy traffic, let the engine idle in N (Neutral)
while stopped. If it is safe to do so, pull off the
road, shift to P (Park) or N (Neutral) and let
the engine idle.
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 no sign of steam, idle the engine for three
minutes while parked. If the warning is still displayed,
turn off the engine until it cools down.
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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2009 GMC Canyon Owners Manual Summary of Content

If No Steam is Coming from the EngineCompartmentIf an engine overheat warning is displayed but no steamcan be seen or heard, the problem may not be tooserious. Sometimes the engine can get a little too hotwhen the vehicle: Climbs a long hill on a hot day. Stops after high-speed driving. Idles for long periods in traffic. Tows a trailer. See Driving on Grades underTowing a Trailer on page 4-47.If the overheat warning is displayed with no sign of steam:1. Turn the air conditioning off.2. Turn the heater on to the highest temperature andto the highest fan speed. Open the windows asnecessary.3. In heavy traffic, let the engine idle in N (Neutral)while stopped. If it is safe to do so, pull off theroad, shift to P (Park) or N (Neutral) and letthe engine idle.If the temperature overheat gage is no longer in theoverheat zone or an overheat warning no longer displays,the vehicle can be driven. Continue to drive the vehicleslow for about 10 minutes. Keep a safe vehicle distancefrom the car in front of you. If the warning does not comeback on, continue to drive normally.If the warning continues, pull over, stop, and park thevehicle right away.If there is no sign of steam, idle the engine for threeminutes while parked. If the warning is still displayed,turn off the engine until it cools down.Engine Fan NoiseThis vehicle has a clutched engine cooling fan. When theclutch is engaged, the fan spins faster to provide more airto cool the engine. In most everyday driving conditions,the clutch is not engaged. This improves fuel economyand reduces fan noise. Under heavy vehicle loading,trailer towing and/or high outside temperatures, the fanspeed increases when the clutch engages. So you mayhear an increase in fan noise. This is normal and shouldnot be mistaken as the transmission slipping or makingextra shifts. It is merely the cooling system functioningproperly. The fan will slow down when additional coolingis not required and the clutch disengages.You may also hear this fan noise when you start theengine. It will go away as the fan clutch disengages.5-33