alibongo Posted April 18, 2011 Share Posted April 18, 2011 I have just got the car back from Nissan after a diagnostic to find the cause of a rattle at low revs. They say that the cat heat shields are starting to corrode and this is the cause of the rattle. Apparently these can't be supplied seperately and two new full cat units are £1800 fitted. Has anyone else had or heard of this problem? Any advice is welcome please. Car is a GT4 and has done 68k. Quote Link to comment Share on other sites More sharing options...
Chipster Posted April 18, 2011 Share Posted April 18, 2011 First thing I wondered was do you definitely need the heat shields? I know they're not 100% necessary on other cars but I'm new to 350Z ownership so hopefully someone can fill in the blanks. Quote Link to comment Share on other sites More sharing options...
Zugara Posted April 18, 2011 Share Posted April 18, 2011 viewtopic.php?f=161&t=48422 Quote Link to comment Share on other sites More sharing options...
Chipster Posted April 21, 2011 Share Posted April 21, 2011 First thing I wondered was do you definitely need the heat shields? I know they're not 100% necessary on other cars but I'm new to 350Z ownership so hopefully someone can fill in the blanks. Anyone with any insight into the necessity of the heat shields? Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted April 21, 2011 Share Posted April 21, 2011 After markets don't have heat shields However, if required I have low mileage preowned OEM cats in stock with all the necessary gaskets and hardware. Drop me a pm if I can help you further. Alex Quote Link to comment Share on other sites More sharing options...
Stroudy Posted April 23, 2011 Share Posted April 23, 2011 Hmm, just been away for a couple of days to the cotswolds in the 350 (great roads, well surfaced and pretty straight), knowing that something is astray with one of the cats (gettit?) and noticed how feckin hot the floor gets in the cabin if you're pressing on a bit in warm weather. Honestly you could keep your lunch red hot all day if you put it between the floor carpet and the mat! Of course having a cat unti under each occupants floor doesnt help this Anyone else found this?? Quote Link to comment Share on other sites More sharing options...
Neilp Posted April 23, 2011 Share Posted April 23, 2011 Nope, my cats went astray too so I'm now "decatted" Quote Link to comment Share on other sites More sharing options...
HassanZ Posted April 23, 2011 Share Posted April 23, 2011 I think I have the same issue as you...I have a loud rattling sound between 1k and 1,500 revs which disappears below and beyond that point. When I'm next to a wall, I can hear it clearly. In the morning when the car is idling at that point, it sounds really bad! Do you think it's the same issue as what you're describing? Many Thanks, Hassan Quote Link to comment Share on other sites More sharing options...
Neilp Posted April 23, 2011 Share Posted April 23, 2011 I think I have the same issue as you...I have a loud rattling sound between 1k and 1,500 revs which disappears below and beyond that point. When I'm next to a wall, I can hear it clearly. In the morning when the car is idling at that point, it sounds really bad! Do you think it's the same issue as what you're describing? Many Thanks, Hassan Do you possibly have a lightened flywheel. This seems to happen when these are installed. It sounds like a chattering noise i'm led to believe Quote Link to comment Share on other sites More sharing options...
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