Engine Coolant Temperature Gage; Malfunction Indicator Lamp (Check Engine Light) - Geo Prizm 1997 Owner's Manual

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Engine Coolant Temperature Gage
Standard Cluster
Optional Cluster
This gage shows the engine coolant temperature. If the
gage pointer moves into the red area, your engine is too
hot! It means that your engine coolant has overheated.
If you have been operating your vehicle under normal
driving conditions, you should pull off the road, stop
your vehicle and turn off the engine as soon as possible.
In "Problems on the Road," this manual shows what to
do. See "Engine Overheating" in the Index.
Malfunction Indicator Lamp
(Check Engine Light)
CHECK
Your Geo is equipped with
a
computer which monitors
operation of the fuel,
ignition and emission
control systems.
This system is called OBD I1 (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for
the life of the vehicle, helping to produce a cleaner
environment. (In Canada, OBD I1 is replaced by
Enhanced Diagnostics.) The CHECK ENGINE light
comes on to indicate that there is a problem and service
is required. Malfunctions often will be indicated by the
system before any problem is apparent. This may
prevent more serious damage to your vehicle. This
system is also designed to assist your service technicia
in correctly diagnosing any malfunction.
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