Preface, last Dec I had the heads professionally rebuilt and new gaskets all around.
Ran great afterwards until first week of May when we were coming home from Florida. Started getting Bank 2 catalytic converter not performing. Did not think much of it until I started noticing coolant gradually "disappearing".
Then a few weeks ago misfire on cyl 2.
I've changed everything to diagnose the misfire and never figured out coolant leak.
I changed crank sensor and did relearn, seemed to help at first but misfire on 2 again.
I did the dye test on coolant, no gasses present in coolant.
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Misfire getting worse, so today I decide to tear the engine left side, cyl 2 side, apart.
Nothing obous to show leak other than the o2 sensor was white and chalky, which is a sign of coolant.
![Image]()
![Image]()
![Image]()
Ran great afterwards until first week of May when we were coming home from Florida. Started getting Bank 2 catalytic converter not performing. Did not think much of it until I started noticing coolant gradually "disappearing".
Then a few weeks ago misfire on cyl 2.
I've changed everything to diagnose the misfire and never figured out coolant leak.
I changed crank sensor and did relearn, seemed to help at first but misfire on 2 again.
I did the dye test on coolant, no gasses present in coolant.
Misfire getting worse, so today I decide to tear the engine left side, cyl 2 side, apart.
Nothing obous to show leak other than the o2 sensor was white and chalky, which is a sign of coolant.
