Hmm... think my exhaust is a bit fooked!

[CrippsCorner]

Now, firstly I need to ask you a question. I've noticed more and more that my car is really raspy when accelerating hard between about 2k-3k, now I love it! Think it sounds wicked, was actually boasting about it to my bro :clown:

But... as time goes on, I think it might not actually meant to sound like that lol :dapprove: so does anyone else get this?

I know there's definitely something wrong with the center section on my car cause it rattles like f**k. I got underneath it and held something against it and the rattling and it stopped, I tired tightening it up but didn't have much time and didn't really do it very well.

Another thing... as part of my job, we sell exhaust testing machines, so I chucked mine on today. It failed. Now I found the print out of when I bought the car (one month ago) and everything is fine on it, but today the CO was five times over what it should be! Now, I guess, the garage could of just blagged it and put the probe up any old exhaust just to get it to pass :quiet:

My boss just said that my CAT wasn't working. So, on this point, could the dodgy center section be effecting this? Also the rasping sound from the exhaust? (it's standard btw) and... how much would a new CAT cost me!? My boss said something along the lines of because my engine isn't built into the testing machine (for some reason!?) they would just put it down as a non-CAT car and it wouldn't need to pass that test. I know he's my boss, but, I don't believe that is true? Otherwise everyone would be de-CATing all over the place surely lol!

Any light shone on these issues mucho appreciated

 

[bmh.01]

Has it rattled like that since you've had it? Sounds like the cat could be fecked and the rattle is the internals of it moving about. Not sure if the 182s suffer from the centre section problem of the 172s but thats more about 4k when you lift off mostly.

 

[sideways danny]

an air leak in the exhaust will throw the CO readings way off

 

[CrippsCorner]

Has it rattled like that since you've had it? Sounds like the cat could be fecked and the rattle is the internals of it moving about. Not sure if the 182s suffer from the centre section problem of the 172s but thats more about 4k when you lift off mostly.

It does sound like the rattle is nearer towards the back of the car though!?

Can you explain the 172 problem a bit? Cheers :approve:

 

[Iceberg_172]

My exhaust was rattling not long ago! thought it was a heat sheild because mines was doing it when idling. Turned out the baffle in the rear silencer came loose and was rattling about inside the box! maybe explain why it sounds raspy aswell!

 

[CrippsCorner]

Okay cheers and how did you fix this, by replacing the silencer?

 

[Iceberg_172]

yeah well i got a whole new exhaust on warranty but you could just replace the silencer.

Easy way to tell is if you go under the car with the engine switched off just give the silencer a slap with the palm of your hand to see if its rattling.