Overheat Issue?

[tempest411]

Originally Posted by andrewwynn

Those are normal sounding temps

Attachment 83704
PDF of the repair procedure


Sent from my iPhone using Tapatalk Pro

Thank you very much for the PDF. I am second guessing myself now...By the time I got home last night the temperature on the upper radiator hose reached 220F. After doing some reading, it looks like the actual temperature of the coolant is probably considerably higher. Perhaps in the test I did yesterday I did not allow it to run for a long enough period of time. Another thought occurred to me. Although strangely coincidental, the mechanical fan doesn't appear to be moving any air at all...well, barely any. When shut off at full temperature, the fan spins loose as a goose. But...the electric fan works and, even if BOTH fans were inoperative, forward momentum on the freeway should provide plenty enough air to keep the engine cool, wouldn't it? And the temps seem to climb regardless, based almost entirely on how long the engine has been running, not whether you're at low speeds or high speeds. I attached a picture from the application on my phone for the wireless meat thermometer I attached to the upper radiator hose. You can see it increase while running. The sharp decrease is after a stop, several very short ones, and then one long one, almost an hour. This is really starting to stump me...