My 98 z24 5-speed 127xxx has a bad cat I beleive. There is something thats rattling under the car. I checked it out and it appears to be the exhaust, almost directly under the front seats. One of my freinds said that theres rock like thigns in the Cat and that they are broken/loose. My question is, can I replace just the Catalyic Converter, or is it an all in one job? One other thing I had a question on, would this change my mpg? As we dont have tests here in MI, can I just take the Cat out and put in a pice of pipe? How much should this cost? Thanks, you guys(and girls) are quite helpfull.
nathan
ps. spell check isnt working with safari right now, so excuse my improper grammer and spelling.
Nathan,
The rattling noise you hear is the "Honey Comb" inside the cat. This comb basically mixes the leftover gas fumes with air to make it safer for our environment. (At least thats what I was told). The comb is bad and has started to break apart, thus the rattling noise.
Yes, you can buy the same OE cat or buy an aftermarket cat and have the old cut off, the new wielded on. You can also just cut it out and run straight piping but its illegal in most states (Not mother earth friendly) . It should not effect you cars gas milage.
Hope it helped!
...They just HATE it when you ...POINT - LAUGH - then DRIVE OFF AND AWAY-!...
Thank you, any ideas how much? Im gonna call the dealership, and a few autoparts places and get prices later today.
Wow, that kills 2 birds with one stone. I had a rattling, but the exhaust wasn't rubbing anywhere. Guess its a good thing I'm replacing it anyways.
-Chris
Just called the closest Chevy dealership and parts alone they say are $580 plus tax. WOW. Im gonna see what I can find smashed around here.
check out www.gmpartsdirect.com also you can just have an exhaust shop cut out the old and put in a new for less than $200.00
-Chris
