It turns out that I am now getting a knocking noise when the engine is warm and at idle. It is much less noticable as soon as the rpm is increased above idle. I am wondering if this could be a sign that the harmonic balancer is bad. I did not hear this noise before the dealer tightened the harmonic balancer bolt. I also have heard that this type of noise might come from a bad timing belt tensioner. Any thoughts?
gwb123
7
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