Exhaust smell..
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Elder User
Joined: Jul 2004
Posts: 715
Likes: 0
From: Long island NY
Exhaust smell..
Hey, I recently had new exhaust put on with new cats. My truck is a 86 f250 302 efi and gets 10mpg.. and now with the new cats it makes a sulfur like smell.. is this because of it running rich or something else? I dont want to burn out the new cats, and the smell is kina gross..
Hotshot
Joined: Oct 2002
Posts: 18,488
Likes: 22
From: The Big, Oregon
It should be getting at least another 2-3mpg. Does it blow smoke at all? If it's not running majorly rich, try a different brand of gas. The cheap ones, especially Costco and BJ's, have a lot of sulpher. Chevron is decent about being low sulpher.
