Temp gauge fluctuates, then reads hot and engine sputters during idle. When I turn off car, then wait a minute and start it again, it will fire up but not stay running.
At this point the temp gauge is over the 3/4 mark to Hot and if I wait for the car to cool down it cranks up and runs fine. Is this a thermometer issue or a computer issue? The coolant level is fine.
Sounds like a thermostat issue! I would replace it!
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