strong exhaust smell

[purplebat66]

my car is giving out a strong exhaust smell and i dont know if my cats are bad or where its coming from.I dont have any codes and the car runs like a bat out of hell , just that the fumes are very strong.I also wanted to know if my car is still under the cat warranty my cars built date was january of 2000.Thank you.

[RyanJM]

I would have to say since you are in NY and if you have driven it a lot it could.also be an exhaust leak. I know my car was with me in MA and has been driven year round back then and when I turned it into a weekend toy here I had a lot of rust no underneath to the point where the rear sway bar axle mounts were almost rusted off. Could also be the cats but I have none now and the only time I have a problem with exhaust odor OS when the ypipe was leaking where it met the cat back or headers from banging it around on driveways and speed bumps or when I had my old headers and we tried to reuse the factory gasket and leaked from there.

[purplebat66]

only drive in the weekend and the car has 29 thousand miles

[cammed goat]

Could be the cats. Is it a rotten egg smell, or raw gas?

[purplebat66]

its just a strong exhaust smell , started as rotten egg smell now its like tear eye strong exhaust fume

[cammed goat]

I'm thinking your cats are going out. What octane gas are you using?

[purplebat66]

93 all the time

[cammed goat]

OK. No codes either, eh? Well, you could check to see if you have a cat warranty, check out the sponsors and price some high-flow replacements, or hit up eBay for replacements and have them installed at a local exhaust shop.

[purplebat66]

thank you i am going to call the dealership tommorow if they dont i will replace ,again thank you.

[RyanJM]

If the dealer won't replace it I would go by a exhaust shop just to make sure something didn't come loose. I mean these are GM cars fit and finish was never the 1st though. Also why do the cats go bad so fast in these cars. I got a 93 5.0 with original cats ans 125k and a 02 Trailblazer with 153k and still factory cats. The 5.0 smells a little but even with the top down barely noticable and the TA has no cats and I barely notice the smell unless I have the tops off and windows down sitting in bumper to bumper.