Tempgage sometimes reads hot,engine is not hot,turned off engine set for minute or two start engine, goes away.It won't happen again for 2-3wksmaybe a month, engine fan comes on once in a while

Hello, it's important to verify the actual temperature of the engine using alternative means - and then also check the accuracy of the coolant temperature sensor. It could be that the sensor reads inaccurately at times -- or perhaps a wiring concern is causing coolant temperature reading issues. It's good news if it's just a sensor or wiring - because compared to other cooling system issues that cause overheating, it's inexpensive to resolve. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops