Sounds like my HG problems. Coolant was pink and no oil. Ended up with a pin size hole in Cyl 2 (AMB head). I kept replacing my HG thinking that was the issue and turned out that it was my cyl head. New head and issues went away. HG kept going bad between Cyl 2-3. Did the test for exhaust gases in the coolant and that's what led us to diagnosing the bad HG, but I never thought it would be my head. Good luck.
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