Hey, I recently adjusted my valves, and that greatly reduced the valve noise. Then, today I filled my car up with mid-grade gas, and now it runs very smooth with only minor valve noise. But, now that most of the valve noises gone I have noticed a sound that's coming from the upper front of the engine/head. It almost sounds kind of like a "diesel" engine noise. It's coming from somewhere around the timing belt housing/water pump. Do any of you have an idea of what it could be?
Thanks
Thanks
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