Quote:
Originally Posted by Danger_Dorn
BTW I ran 80 mph at like 3k on the highway today for 20 mins...it was fine. My temp didnt even move. Then again its like 60 here right now.
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When you're cruising at highway speeds, as long as your radiator is even close to big enough, you won't have heat problems unless there's something else wrong. If you have 60+mph wind through the radiator, even if it's really hot wind, it's moving a LOT of heat off - if it was a radiator problem, the overheating would happen at low speeds, or you wouldn't be able to idle in traffic.
You had an air bubble, or something else like that. For example, once I had to replace a thermostat (stuck open), and when I finished and topped off my coolant (was being lazy about bleeding, though) it idled just fine in a parking lot until it was hot. Raced the motor a few times, it was fine. Pulled out, and a quarter mile down the road my temp needle creeps up and up and up and up.... I start to panic, and pull over just as the needle hits the top white thing. I popped the hood to check for coolant or anything but left the motor running - saw nothing, ran back to the drivers seat, and the temp was already normal..... more than a year later, same coolant, system has not been opened, temps are always perfect.
Which is why, you will probably never be able to re-create the problem. If it does happen again, follow the most intensive bleeding instructions you can find, and it will go away.