986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post

rene525d · 04-06-2012, 05:22 AM

Just now I was driving, and on a heavy acceleration, when I reached around 70MPH I heard a sort of backfire noise and a loud rattle from the exhaust. I put the car in neutral and stopped at the first place I could. On idle there seems to be a banging noise like some metal parts are hitting against each other, and when I give it some gas on neutral the banging noise keeps the same noise level, only the frequency increases. I am not sure exactly from where the noise is coming, but I can hear it most from underneath the car, so I am not sure if its from the exhaust or from the transmission/engine. Any ideas? Every month something bad is happening!

2004 Boxster S, 60K, just installed new clutch.

04-06-2012, 05:22 AM	#1
rene525d Registered User Join Date: Aug 2011 Location: Malta Posts: 144	Load banging noise Just now I was driving, and on a heavy acceleration, when I reached around 70MPH I heard a sort of backfire noise and a loud rattle from the exhaust. I put the car in neutral and stopped at the first place I could. On idle there seems to be a banging noise like some metal parts are hitting against each other, and when I give it some gas on neutral the banging noise keeps the same noise level, only the frequency increases. I am not sure exactly from where the noise is coming, but I can hear it most from underneath the car, so I am not sure if its from the exhaust or from the transmission/engine. Any ideas? Every month something bad is happening! 2004 Boxster S, 60K, just installed new clutch.