My boxster has been rattling at start up really bad to the point it's quite embarrassing. I took the rubber hammer to it today. I found the culprit. Two heat shields on on either side adjacent to the cats. I was posed with a dilemma. Do I remove them completely which would remove any further rattles or do I grip them tighter to the part they are attached.
I think I read both for and against removal. I opted for this choice. Purely for the fact I think the rattle would come back again. I know they are there for a reason. Above is a rubber boot which I am concerned about and I am sure the heat in the engine bay will have increased but to what level. I will try and fabricate a deflector to bounce the heat back away from the engine towards the road
Anyone with rattles jack up the car get the rubber hammer and tap it around the back I bet the heat shields are responsible. Picture attached of removed heat shield.
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