Flowmaster knocking at idle
12-08-2013, 08:49 PM
#1
3rd Gear Member
Thread Starter
Join Date: Dec 2006
Posts: 569
Flowmaster knocking at idle
Driver side flowmaster at idle, while listening with stethoscope, has normal air rushing through it noise. However the passenger side flowmaster has a loud knocking sound, I tapped both muffler with a mallet and did not hear anything rattle around inside etc. Any idea whats causing this loud knocking through the muffler?
12-09-2013, 06:40 AM
#2
5th Gear Member
Join Date: Jul 2012
Location: ohio
Posts: 3,628
I never really felt the need to put a stethoscope on my mufflers.
I assume you were hearing something out of the ordinary to begin with?
Its likely that you have a noise in the valve train and it is transferred along the pipes.
I assume you were hearing something out of the ordinary to begin with?
Its likely that you have a noise in the valve train and it is transferred along the pipes.
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