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The gauge indicates the engine cool- 
ant temperature when the ignition 
switch is on.  The engine operating
temperature will vary with changes in weather and engine load. 
If the needle moves into the red zone, your engine is too hot.  If your vehicle 
overheats, stop your vehicle and allow the
engine to cool. 
Your vehicle may overheat during severe operating conditions, such as:   Driving up a long hill on a hot day.
  Reducing  speed or stopping after high
speed driving.  
Idling  for a long period with the air con-
ditioning on in stop-and-go traffic.
  Towing a trailer
NOTICE
 Do not remove the thermostat in
the engine cooling  system as this
may cause the engine to overheat. The thermostat is designed tocontrol  the flow of coolant to keep
the temperature of the engine within  the specified operatingrange.
 Do not continue driving with an
overheated engine.  See If yourvehicle overheatsº in Part 4.The tachometer indicates engine 
speed in thousands of rpm (revolu- 
tions per minute).  Use it while driving 
to select correct shift points and to 
prevent engine lugging and overrev- ving. 
Driving with the engine running too fast 
causes excessive engine wear and poor 
fuel economy.   Remember, in most cases
the slower the engine speed, the greater
the fuel economy.
NOTICE
Do not let the indicator needle get into the red zone.  This may cause
severe engine damage.
Tachometer
Engine coolant temperature gauge