Most
vehicles have heat sensor to engine operating temperature indicator
light
If
light comes on (or temperature gauge goes into red danger zone)
coolant is
250°F to 258°F (120°C to 126°C)
If
coolant temperature warning light comes on, follow these steps
Step
1: Shut off air conditioning and turn on heater. Set blower speed to high.
Step
2: Shut engine off and let it cool.
Step 3: Do not remove radiator cap
while engine is ho
Step
4: Do not continue to drive.
Step
5: If engine does not feel or smell hot, problem may be faulty hot light sensor
or gauge.
Common
Causes of Overheating
–Low
coolant level
–Plugged,
dirty, or blocked radiator
–Defective
fan clutch or electric fan
–Incorrect
ignition timing (if adjustable)
–Low
engine oil level
–Broken
fan drive belt
–Defective
radiator cap
–Dragging
brakes
–Frozen
coolant (in freezing weather)
–Defective
thermostat
–Defective
water pump (impeller slipping on internal shaft)
–Blocked
cooling passages in block or cylinder head(s)
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