Knock or Raddle Sound coming from under the car
Asked by Leroybw Sep 27, 2012 at 10:11 AM about the 2008 INFINITI G37 Journey Coupe RWD
Question type: Maintenance & Repair
I have a 08 Infiniti g37 coupe. When I come to a complete stop every blue moon, and I accelerate I then here some type of knock or raddle coming from under the car. I had the rear exhaust replace a month ago which I thought could be the problem maybe something was lose but the Infiniti dealership said everything is ok. The dealership ran test on my car 2 times within a month, and still could not find any type of knock or raddle sound coming from under the car. Can someone help me because I need know what does that generally mean?
5 Answers
sounds like the part that holds up the muffler needs tightening, Mine did that and Took it in to Ben tire and they simply tightened it up and I was good do!
Dude mine does the same, if it’s a manual just give it some gas to 2k before you slowly let the clutch go and it won’t rattle. If it’s an automatic then idk.
My 2013 g37x has a weird tapping sound from the driver side and out of no where I will hear a knock from under the car. I took it too the mechanic and still no find of the issue I was thinking broken sway bar link.?has any one else have this issue.?
Guru I have thiis problem what did it turn out to be? It just happened tonight
This is internal of the catalytic converters where the actual rattling noise is coming from. It’s this honeycomb shaped piece inside the converter that comes loose and rattles at certain speeds, rpm, bumps on road...very annoying but it passes all codes and test still. G37 sedan journey 2011. 53,000miles garage kept. Mine will not fall under warranty..
