2004 GMC Safari "catalytic converter rattling noise under" Questions

...catalytic converter going. I do I find out which one is causing this noise. Please help me. Thank you. Charlie If you drive on gravel roads it may be gravel inside the shell,covering the converter ...

catalytic converter that is breaing apart inside. Get underthe van when it has cooled off and "thump" the exhaust with your fist to see if you can locate the rattle. Often, the heat shield welds break

catalytic converter heat shields, or the exhaust heat shields bolted to the underbody. Might also be the catalytic converter internal converter honeycomb broken loose. Unusual, but can occur if excess

rattling noise when idling, noise goes away when driving. Under the car like the exhaust? Catalytic converters do that inside their metal shell or housing. Beat on it with your fist when it is cold to

catalytic converter can it be repaired I bet its just a the heat shield on the catalytic converter. Subaru uses very thin metal and the heat shield is bolted as opposed to welded together. This rattle

...pipe welded back on and the noise is gone, but the rattle is still there. Any ideas? Worn suspension parts Catalytic converter substrate may be making the rattling . Does it do it at idle in park

...catalytic converter heat shield I was looking at purchasing the vehicle. Th owner said that there was rattling noise coming from the catalytic converter heat shield which was loose. Is this the ...

...catalytic converter or muffler? The metal shielding around your catalytic converter could be rattling or the rubber donut that holds the rear tailpipe could be bad. When your car is cold shake your ...

...from under transmission Rattle Without hearing it, have you checked your Catalytic converter which is close to the transmission and can come loose basically rot from the inside and start

converter was stopped up.I t makes a rattling noise under throttle and stops when stopped. has good oil pressure. did they do an exhaust back pressure test to diagnose a plugged catalytic. if they did