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I don't know if this is your trouble, but I had the same situation or similar.It was explained to me that the exhaust manifold on maxima's have a tendency to heat up and warp; separating them from the engine exhaust ports and the bolt breaks. I think you need to replace the exhaust manifold. It is a bit expensive having a professional do the job. Well worth the cash. At least to me.

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โˆ™ 2011-09-13 16:19:46
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Q: What is it when you turn the car on there is a louder noise from underneath your engine near the main exhaust pipe?
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