Overheating Driving down the road in SE Louisiana and truck overheted. To resolve the problem had thermostat changed out and a new fan clutch on the radiator installed, chaned top radiator hose and changed antifreeze. It is still overheating -- any solutions?

If your 2004 Infiniti G35 is still overheating after replacing the thermostat and cooling sensor, there may be a few other issues that could be causing the problem:

1. Radiator blockage: The radiator may be blocked or clogged, preventing the coolant from flowing through it properly. This can cause the engine to overheat. To check for a blockage, visually inspect the radiator for any obstructions or debris, and flush the radiator to clear out any buildup.
2. Water pump failure: The water pump circulates the coolant through the engine and radiator. If the water pump fails, the coolant will not circulate properly, and the engine can overheat. Check the water pump for any signs of damage or wear, and replace it if necessary.
3. Fan clutch or electric fan failure: The fan clutch or electric fan is responsible for cooling the radiator when the car is idling or driving slowly. If the fan clutch or electric fan fails, the engine can overheat when the car is not moving. Check the fan clutch or electric fan for any signs of damage or wear, and replace it if necessary.
4. Head gasket failure: If the head gasket is blown, coolant can leak into the engine cylinders, causing overheating and other problems. Check the head gasket for any signs of damage or wear, and replace it if necessary.

As for the no heat issue, it's possible that the overheating has caused damage to the heater core or other components. It's also possible that there is air trapped in the cooling system, preventing the coolant from flowing properly through the heater core. Bleeding the cooling system may resolve the issue.

blocked radiator, blown head gasket, new thermostat in wrong
If the overheating is occurring at standing , low speeds or high rpm low road speed conditions , replace the viscous fan hub as it is not driving the fan properly
If you have electric fans check
bot fuses, engine coolant sensor, relay, fans and wiring

Have you checked the fan? A bad fan either electric or manual with clutch will cause a heating problem.

If it has an electric fan a would replace the coolant temperature sensor.If it a mechanical fan i would replace the clutch on the fan.

Yes, if the fan clutch is bad, the car may overheat, especially when going uphill, check for a replacement or repair the esisting one filling it back with new silicona.

Most likely not. Pulling the thermostat will get you home, but not a great fix. Is it overheating driving down the road or sitting still? If it is overheating driving down the road, look for a clogged radiator or stuck thermostat. If it overheats sitting still, look for your cooling fans not coming on.

overheating has a few possibilities.
thermostat.
low volume from water pump.
air lock caused by a small leak
cooling fan not coming on. from radiator fan switch or relays.

have the system pressure tested,
check the fan operation,electric or clutch fan.

Its not impossible for there to be a bad head gasket or leaking. But I agree with you the over heating will be there during driving as well. I would change the fan clutch and replace the thermostat, if the thermostat that was replaced wasn't an oem/delaer thermostat, I would change it. From prior experience with these type of vehicle the most likely cause of overheating thermostat and fan clutch. Aftermarket thermostat just aren't good for this vehicle I have proved it a few times for myself. Take my advise and change the thermostat with an oem one and the fan clutch with an oem. Good Luck. Get in contact with me if you need more help.

sounds like your radiator is not flowing freely. this will cause it to overheat w/driving down road.

If it runs cool when you are moving the fan clutch is probably weak. If it overheats when moving down the road you more than likely have a radiator problem. Make sure the fins on the radiator and clear from debris for max cooling system efficiency.