Hole in Catalytic Converter Heat Shield - SaabCentral Forums
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Old 16th April 2002
Join Date: Feb 2002                                                
Location: Vancouver, BC, Canada
My Saabs: '91 900T conv,'10 MINI Cooper 50 Mayfair
Posts: 478

Hi everyone,

Today I took my car to the shop for routine oil change, and my mechanic informed me that the catalytic converter heat shield is holed and needs to be replaced as soon as possible. He was talking somewhat technical (well, sounded technical to my ears anyway!) and said that if I leave it the way it is, the car's entire underside would gradually melt or something! I am planning to have that repair done (along with a few others) in 3 weeks, but just wanted to know what he is exactly talking about. Also, the converter was replaced 3 years ago by the previous owner. Is it normal for it to rust out in 3 years?

Thanks a lot.
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Old 16th April 2002
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Simon Simon is offline
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Join Date: Aug 2001                                                
Location: SW France
My Saabs: I've had a few...
Posts: 4,524

I think it's basically a metal insulated sheet that is bolted over the CAT so it shouldn't be that expensive to replace.

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Old 16th April 2002
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john-w john-w is offline
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Join Date: Aug 2001                                                
Location: Bulphan, Essex.
My Saabs: 1989 T8 Special
Posts: 3,467

Because the cat generates so much heat they put a metal plate between the cat and the cars floorpan to stop the floor getting hot. As simon said this should be a cheap thing to replace!!
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