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Why does my car make a knocking sound like a machine gun. when i accelerate
2002 Buick Century

Why does my car make a knocking sound like a machine gun. When I accelerate

(2002 Buick Century)
It only happens between speeds of 10-30mph. When first accelerate. Then don't hear nothing. On my Mercedes ml320. 1998
What seems to make the problem better or worse? Goes away when I accelerate to certain speed like 25mph
Tags: buick, century
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on March 19, 2019
Conflicting vehicles posted.
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on March 19, 2019
Conflicting vehicles posted.
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