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Lost a spark plug
So my car has been having issues anyway and I recently did a compression test to find out that I had no compression on one cylinder. I don't know if it was me putting everything back together poorly or something else.
My car has been sputtering and dying lately but I thought it was from a gas-additive I put in the tank trying to free up the valve on the bad cylinder. The dying did not start till right after I added the additive. I bought the additive at Auto Zone when I took the compression test kit back so I probably should have considered that it might be something else but nothing looked wrong. I have to add oil frequently due to a leaky oil pan seal (on my to do list with the engine rebuild). I am sure that I would have noticed a spark plug hanging when adding oil, it was the first thing I saw when I popped the hood.
So what causes a spark plug to back itself all the way out? The hole was empty and my spark plug wire was hanging there not attached to a plug. This is a different cylinder than the one that had no compression.
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