Guys, this is an interesting thread and I have followed it all the way through. Now I find that I simply must expose my ignorance. I seem to be the only person who does not understand what "nailing" is.

My car is noisy and it may be "nailing", but if it is, I wouldn't know it.

Would it be possible for someone to expand somewhat on how to recognize this problem when it occurs?

Thanks in advance for your response.

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Ted
1979 240D
160,000 miles