Forum Discussion
allaue87
May 18, 2026Explorer II
Here's an update after the teardown and some history.
I bought the RV with 17,000 miles on it. Did an oil change around 19,000 miles with OEM Ford filter. I don't recall what brand was on it before, but it wasn't OEM. The engine seized at the 21,000 mile mark.
As you see in the pictures, the first four pistons were heated to black and were seized to the crank shaft. The oil sump filter is clogged with a fibrous material - which I am thinking is it filter media. If so, that might have been the issue & caused the oil starvation. Then it started eating away at the bearings and sending metal material to the oil pan.
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