Chevrolet 2003 Express Van Spezifikationen Seite 157

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If
the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If
so,
reinstall the fuel cap, making sure
to
fully install
the cap. See Filling
Your
Tank on page
5-7.
The
diagnostic system can determine
if
the fuel cap has
been left
off
or improperly installed.
A
loose or missing
fuel cap will allow fuel to evaporate into the atmosphere.
A
few driving trips with the cap properly installed
should turn the light
off.
Did you just drive through a deep puddle of water?
If
so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out.
A
few driving trips should turn the light off.
Have you recently changed brands of fuel?
If
so,
be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page
5-5.
Poor fuel quality will
cause your engine not to run as efficiently as designed.
You may notice this as stalling after start-up, stalling
when you put the vehicle into gear, misfiring, hesitation
on acceleration or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the
light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light
off.
If none of the above steps have made the light turn off,
have your dealer or qualified service center check
the vehicle. Your dealer has the proper test equipment
and diagnostic tools to fix any mechanical or electrical
problems that may have developed.
Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may begin programs
to
inspect the emission control
equipment on your vehicle. Failure
to
pass this
inspection could prevent you from getting a vehicle
registration.
Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection
if
the Check
Engine light is on or not working properly.
3-36
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