Catalytic Converters?
Thread Starter
Instructor
Joined: Sep 2003
Posts: 237
Likes: 5
From: Washington DC
Catalytic Converters?
I think my cats might be going bad, a little over 80k miles on the car. I'm starting to get this foul smell (rotten egg smell) in the car as I am driving. How can I make sure if it's my cats that are going bad? Also the car runs great and I have never had a problem with it. Plugs and wires changed a year ago (HP Delco wires and TR-55 plugs). I don't know if the O2 sensors have ever been changed on the car, but I have orderd some new ones and I will be changing them this week. The smell is intermetent and yesterday I turned the heater on and the smell just came in the car big time. Can the cats go bad without warning?
Thread Starter
Instructor
Joined: Sep 2003
Posts: 237
Likes: 5
From: Washington DC
Yeah I'm going to change the cats anyway to high flow ones, changing the O2 sensors, and plugs too once we get rid of this snow.
Well the C02 is supposed to be oder less, this smells like rotten eggs and it seeps up everyonce in a while. I smelled it in the rear exhaust once too a week ago. I haven't been using the car much lately.
Well the C02 is supposed to be oder less, this smells like rotten eggs and it seeps up everyonce in a while. I smelled it in the rear exhaust once too a week ago. I haven't been using the car much lately.
Last edited by badwhitecorvette; Feb 28, 2005 at 11:42 PM.
Burning Brakes
Joined: Dec 2004
Posts: 905
Likes: 0
From: Rhode Island
If the cats were going, you could notice less power, also look at the exhaust manifolds or the pipes before and after the cats, when the car is hot, they can glow red, also a big temperature difference before and after the cats is a tell tale.
Thread Starter
Instructor
Joined: Sep 2003
Posts: 237
Likes: 5
From: Washington DC
I haven't checked the manifold or pipes for the red glow. The car just gets that bad smell it's been doing that for the past 3 weeks. It's gotten a bit worse now. The car runs fine and there is no temp issue either.
My brother had a car that the cat went completely bad on it. It was like glowing red and the car was running like crap.
So would u think that it they might be just starting to go bad?
When they glow and the temp is high you know for sure they are bad.
My brother had a car that the cat went completely bad on it. It was like glowing red and the car was running like crap.
So would u think that it they might be just starting to go bad?
When they glow and the temp is high you know for sure they are bad.
Burning Brakes
Joined: Dec 2004
Posts: 905
Likes: 0
From: Rhode Island
Originally Posted by badwhitecorvette
I haven't checked the manifold or pipes for the red glow. The car just gets that bad smell it's been doing that for the past 3 weeks. It's gotten a bit worse now. The car runs fine and there is no temp issue either.
My brother had a car that the cat went completely bad on it. It was like glowing red and the car was running like crap.
So would u think that it they might be just starting to go bad?
When they glow and the temp is high you know for sure they are bad.
My brother had a car that the cat went completely bad on it. It was like glowing red and the car was running like crap.
So would u think that it they might be just starting to go bad?
When they glow and the temp is high you know for sure they are bad.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Thread Starter
Instructor
Joined: Sep 2003
Posts: 237
Likes: 5
From: Washington DC
Well I wouldn't change the cats if I didn't have to. But they are like $150 each so it's not to bad. So if I had to I'd kill two birds with one stone. But I am changing the 02 sensors on there, I think it's time for them. And I'm changing the plugs too.
I'm thinking of going on a long road trip in the car this week, but I don't know with all this. The car does run fine.
I'm thinking of going on a long road trip in the car this week, but I don't know with all this. The car does run fine.