still overheating after radiator replacement, radiator overheating engine temperature Options

[Terzin1]

Hi all

Last week my radiator cracked at the fill neck. I replaced it with another and that seems to have gone in just fine. It holds fluid without leaks. I also picked up a new thermostat but didn't install it yet.

So... today I filled up the radiator with coolant and went for a test drive. It started to overheat again so I stopped, let it cool a bit and opened the cap to fill it and let the bubbles come out as it ran, heat was on. The reservoir was bubbling up too. I also unplugged the fan sensor so that they could run continuously just to be sure that they weren't part of the problem. Well, the fans work and seemed to slow the pace of the temp gauge rising, but I'm still overheating. Tomorrow I'll swap in a new thermostat. What else should I look for if that doesn't solve the problem?

[richee3]

I doubt if it's the thermostat coincidentally going bad while the radiator was being replaced. More than likely there's just some air stuck in the system, as stated above. The thermostat is easy to replace though and it's better to do it in advance than before it seizes closed and overheats your engine.