by dadof3 on April 3rd, 2005

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I have a 1991 GMC Safari with 4.3L V6 recently its been running a little rougher than normal and the exhaust smells a little like rotten eggs. Could it just be in need of a good tune-up?

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by Patman on April 13th, 2005
That is normally a sign of a clogged Catalytic Converter, which is an emissions component in the exhaust made most commonly of Platinum and a porcelain like substance. It's basicly there (in lamen's terms) to lower emmissions levels. Pick up a JC Whitney Catalog, or go online, they carry fuel additives which I personally have used to solve the 'Rotten egg' issue with GM vehicles.
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I have a 1991 GMC Safari with 4.3L V6 recently its been running a little rougher than normal and the exhaust smells a little like rotten eggs. Could it just be in need of a good tune-up?

Answers. 1 helpful answer below.

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I have a 1991 GMC Safari with 4.3L V6 recently its been running a little rougher than normal and the exhaust smells a little like rotten eggs. Could it just be in need of a good tune-up?

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