Why is my G35 infinite 2005 overheating?

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! If your 2005 Infiniti G35 is overheating intermittently, especially after a crankshaft sensor replacement, a few things might be happening. First, check if the coolant level is topped off, as low coolant is a frequent overheating culprit. Then, verify that the thermostat, radiator, and water pump are working properly. Sometimes, cooling system issues can present inconsistently, especially with a thermostat sticking or a finicky cooling fan relay. If you need any further advice or want help finding a trusted RepairPal shop in your area, please feel free to call us at 877-913-1554.