1995 Chevrolet Blazer Owner's Manual - Page 125

1995 Chevrolet Blazer Manual

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indicated by the system before any problem apparent, which may prevent is more serious damage to your vehicle, This system is also designed to assist your service technician in correctly diagnosing any malfunction. The "SERVICE ENGINE SOON" light shouldcome on, as a check to show you it isworking, when the ignition is onand the engine is not running.This light will also come during a malfunction inone of two ways: Light on steady - indicates a system malfunction has been detected. Drive the vehicle to the dealer service at your for first opportunity. Light flashing - indicates a misfire has been detected which may damage the emission control system.The damage may be reduced by lowering the vehiclespeed, reducing the amountof cargo being hauled or trailered, avoiding hard acceleration, or avoiding steep uphill by grades. If these actions are effective, the light will stop flashing and remain on steady. Drive the vehicle to dealer for service. If the light a continues toflash, stop the vehicle. Wait for a steady light to come on, then drive the vehicle to dealer for service. a These following conditions alsomay cause the "SERVICE ENGINE SOON' light to come on: Low Fuel/Out of Fuel - As the vehicle startsto run out of fuel the "SERVICE ENGINE SOON" light may come on as a result of an engine misfire. Filling your gasoline tank should correct this condition. Make sure to install the gas cap fully. It will require driving trips to turn the ligh a few off. Poor QualityFuel - Be sure to fuel your vehicle with quality Your fuel. engine may not run efficientlyon poor fuel. Poor fuel may cause stalling, hesitation ormisfire. These conditions may go away when the engine is warned-up. However, poor quality fuelmay cause the "SERVICE ENGINE SOON' light to come on. Have a dealer check the vehicle.If no problems are found, you may want to change to another brand of fuel. Driving Through Standing Water - Driving your vehiclethrough puddles of deep standing water may result a temporary misfire condition. in This condition will usually correct itself shortly after the electrical dries system out. It will requirea few driving trips to turn the light off. 2-73

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indicated by the
system
before
any
problem
is
apparent, which may prevent
more
serious damage to
your vehicle, This system is
also
designed
to
assist
your
service
technician
in
correctly
diagnosing any
malfunction.
The
“SERVICE
ENGINE
SOON”
light
should
come
on,
as
a
check to
show
you
it
is working, when the ignition
is
on and the engine is not
running.This
light will also come during
a
malfunction
in one
of
two ways:
Light on
steady
-
indicates a system
malfunction
has
been
detected.
Drive the
vehicle
to
the
dealer
for service
at
your
first opportunity.
Light flashing
-
indicates a misfire
has
been
detected
which may
damage the emission control
system. The damage may be reduced by
lowering the
vehiclespeed, reducing the
amount of cargo being
hauled
or
trailered, avoiding
hard
acceleration,
or
by avoiding steep uphill
grades.
If
these
actions
are
effective, the
light
will
stop
flashing
and
remain
on
steady. Drive the
vehicle
to
a dealer for service.
If
the
light
continues
to flash, stop
the
vehicle. Wait for a steady
light
to
come
on,
then
drive
the
vehicle
to
a dealer
for
service.
These following conditions
also may cause the
“SERVICE
ENGINE
SOON’
light
to come
on:
Low Fuel/Out of Fuel
-
As
the
vehicle
starts
to run
out of fuel
the
“SERVICE
ENGINE SOON” light
may come on
as a result of an engine
misfire. Filling
your
gasoline
tank
should correct
this
condition.
Make
sure
to
install
the
gas
cap
fully.
It
will
require
a few
driving
trips
to
turn
the
ligh
off.
Poor
Quality Fuel
-
Be
sure
to
fuel
your
vehicle
with
quality
fuel. Your
engine may not
run
efficiently
on
poor fuel. Poor fuel may cause stalling,
hesitation
or misfire. These conditions may
go
away
when the engine is
warned-up. However, poor
quality
fuel may cause the
“SERVICE
ENGINE
SOON’
light
to come on.
Have a dealer check the
vehicle.If no
problems
are
found, you
may
want
to
change to another brand of fuel.
Driving Through Standing Water
-
Driving your
vehicle through puddles
of deep standing
water
may
result
in a temporary
misfire
condition. This
condition
will
usually
correct
itself
shortly
after
the
electrical
system dries
out. It
will
require a few
driving
trips
to
turn
the
light off.
2-73