Hearing a knock inside the car

IndigoMKII

New Member
May 9, 2011
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Madison, Virginia
Okay so I'm hearing a slight knock inside the car, don't know if it's engine related or just my downpipe hitting the transmission as I haven't been under to check. The sound isn't audible from the engine bay but it is from the interior, it does go away with a slight rev(1k rpms).

I have noticed the car is having a little bit of a miss at idle and if I hold the rpms steady in neutral but not under a load. I'll be checking the downpipe hitting the transmission but I'm not sure where this miss has come from. I have new plugs ready to go in the car so I guess I'll go ahead and swap them out and check the condition of the ones in the car.