That is odd, not the fan thing but if you have the crossover open with coolant like that pic and the cap off, the coolant in the funnel should flow into the expansion tank almost instantly.so i have a pretty strange situation. i noticed this time around my fan wasnt turning on. so for shits and giggles turned the ac on the fan came on then turned off the ac and the fan stayed running for about 10 seconds and shut off as well so i did it again and this time the fan stayed on by itself. turned off the the car then started it fan came on by itself this time. I had a bunch of coolant flowing out of the bypass tube at the time i tried the ac to kick on the fan..View attachment 1747153
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