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1991 Geo Metro Questions & Answers
Geo metro troubleshooting
Several possible causes:
Not enough coolant.
Worn out vanes on the water pump
plugged radiator
bad sensor (is it actually too hot?)
Cooling fan not coming on.
cooling fan shroud broken.
Radiator covered or plugged.
radiator cap not holding pressure
leak in cooling system (water pump shaft seal is a common culprit and hard to spot).
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