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Two main causes: the inner parts have failed, or the outer heat shield has failed.
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∙ 12y ago
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How to stop the Rattling noise from a catalytic converter?
The heat shield on top of the converter may have broken loose. it can be repaired. If the rattling is inside the converter it must be replaced.
Do catalytic converters rattle when going bad?
Yes, that is a sign of a bad converter. Just make sure it is the converter that is rattling and not the heat shield located above the converter which are notorious for rattling on older vehicles.
Why is your catalytic converter making rattling noises?
Its either loose or breaking down internally.
How do you stop rattling on a catalytic converter on a 2002 ford expedition?
Replace it.Replace it.
What are symptoms of faulty catalytic converter 1990 miata?
loss of power.noise rattling from exhaust
What if your car is rattling and exhaust smells of rotten eggs?
Most likely your exhaust is rattling and the smell is because your catalytic converter is bad
What causes rattling noise when accelerating?
Heat shield on catalytic converter? Octane rating of fuel not high enough Timing too far advanced Catalytic converter itself
2004 Toyota corolla metallic rattling noise?
Check the heat shield on the catalytic converter
Does a defective catalytic converter have a clanging or rattling sound?
Yes, it can and this may also be a loose or cracked converter heat shield.
What causes a rattling that sounds like it is inside the muffler of a Mercedes 320SLK?
The rattling you are asking about turned out on my 320 to be the catalytic converter breaking up internally.
Why does a Rattling sound can be heard inside my catalytic converter?
bits of the catacomb that makes up your coverter have fallin losse. if it sound like there is dirt in it that that's the case. The catalytic converter needs replaced.
Why would a car be making a rattling noise?
Check to heat-shield at the catalytic converter because something is loose
