Join Date: Jul 2012
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Replaced injector cups coolant overflowing
I replaced my injector cups, injector o-rings, and glow plugs today. I was performing a coolant flush and within 45 seconds of the truck being on, my degas bottle over pressurized and overflowed.
I then shut the truck off and let some air out of the fill cap. Restarted the truck and it did not overflow, but air bubbles kept coming up.
I drained the coolant after the flush. Filled with good coolant and it overflowed right away.
Did I not seal a cup right? That's the only thing I can think of.