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Coolant leak/Intake Manifold O-Ring issue possibility
I replaced the o-ring for my intake manifold less than a year ago and it seems to have blown again. I haven't taken anything apart yet to check exactly what the issue is though so I'm not exactly sure.
Last Thursday when I was leaving work I noticed that my fan was coming on. I was not overheating, but it still struck me as odd because it was like 30 degrees outside. I had a really busy weekend and did not get around to checking what the issue was until today. I had no coolant in my degas bottle whatsoever, so I decided to poor some distilled water in and unfortunately all the water immediately leaked out from the middle of the engine compartment. I'm assuming its from that same o-ring I previously replaced.
I'm wondering if there is another issue that is causing this o-ring to blow, or maybe I did something wrong? Want to get some ideas of what to do here, especially to prevent this from happening again. The repair took me a really long time last time, and my work schedule is even more odd now so it's going to be another project. I may end up trying to find a good diesel mechanic to do the work for me.
Any help/past experience is greatly appreciated!