Jump to content
SAU Community

Recommended Posts

Hey guys I just got a quick question about my exhaust. Recently my exhaust have started to sound really bad. Like at lower-ish RPMs, there would be a slight rattle coming from the back of the car. So I got under my car and started inspecting the heatshields and whatnot for any loose items that could potentially rattle. However, it turned out that there are rocks???? in my exhaust. When I swing my exhaust side to side, I just hear these clattering noises from inside!

What could this possibly mean??

Is it a collapsed muffler, my cat breaking down or something else? If (hopefully) it is just the cat, is it just a simple case of taking the exhaust off and try to get the debris out or has it potentially damaged the inside of the muffler?

Thanks for your help guys. Hopefully I can get this fixed soon because it absolutely sounds horrific when I put my foot down now.

Link to comment
https://www.sau.com.au/forums/topic/294165-quick-exhaust-problem-question/
Share on other sites

i had the same problem on my old pintara :thumbsup: i know your pain, it sounds like complete ass and you are embarressed to drive anywhere lolz...

im 98% its the cat mate :) take it to an exhaust shop and ask them to check it for ya, shouldn't cost you anything.

peace.

Yeah - sounds like the core of the cat has broken up and is rattling around.

I had the same problem with my GTR and depending on how the pieces were sitting it either sounded crap or was quite loud.

ahhh awesome doesn't sound like a huge problem I guess.

Phew!

Like you guys were saying, I am completely embarassed to drive it around sounding so crap. There is a really small revband between 2000-3000 RPM right now where it doesnt make such a crap sound. Not so fun being restricted to that in a skyline hahah.

Now I just have to drive it around like a granny till exams is over in 2 wk. ugggh!

Cheeers guys! Much appreciated!

Just an update, I took the cat and cat-back off this wkend. Turned out that my cat was fine :D

So then I turned my attention to the cat-back and I can definately hear rocks/sands in there rattling around when I shake it around. However, no matter how hard I shook or tapped it, the stuff inside just wouldn't come out. So now I'm starting to think that the muffler might just start to collapse on me. Sigh. And I thought this was going to be a quick backyard job. Now I have to bring it into the exhaust shop and see if they can put a new muffler on it.

Any idea how much mufflers are roughly?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Oh man what a deal.... Funny enough (well not really) I sold a car to some old dude (buying for his Daughter) on a Saturday, He asked if she could take the car now and pay me the money on Monday as the bank wasn't open. Needless to say I told them to come back with the cash or get f**ked! Luckily the money seemed to magically appear in his pocket a few minutes later, so it all ended well (for me).
    • Gucci bags tend to hold their value well, so someone’s definitely going to get a nice find here.
    • @Ozdavroz Not going to get a better deal than that. Cash up front and ongoing payments. 🤑
    • I wouldn't even move it like gTSBoy is saying. I'd seriously do what Duncan is saying. Unplug the injectors, and unplug the fuel pump.  Pull the spark plugs out. Have a look in quickly with a bore scope if you want. At most, you can't spray a bit of oil into the bores so there is lubricant in there while you crank it. (Don't fill it, as it's only going to enter the exhaust, or spit at you out the spark plugs holes. Before cranking the engine on the starter, after a 5 year sit I'd probably prime the oil system manually. Easiest way to do so is to look at buying an oil filter relocation block, fit it to the engine. The pressure line going into the engine on this block you can then shove into some sort of oil pump, or put it into a bottle, with that hose going to the bottom. Fill bottle up with oil. Now seal the bottle and add a compressed air line to the top of the bottle. Feed compressed air in, about 20psi will be PLENTY. This will pump oil through the motor. Be aware, it also means it will drain back to the sump, so make sure you don't end up over filling the motor Now bolt the old oil setup back on (or fully install the remote filter system).   This way you've at least pushed fresh oil everywhere, then you're letting the motor crank to then do its own oiling. Then I'd tap the key to make sure it can start to crank, if the motor free bumps, then I'd just hit the key and let it crank. After letting it crank and seeing you can get real engine oil pressure, put new spark plugs in, reconnect the fuel system electrics, and send it.   Additionally, you can look to remove the fuel feed line to the rail, and divert it to a tank so you can get the bottom of the tank shit out, and just incase there's some crud sitting anywhere that gets passed the fuel filter (or is already ahead of it).   If fuel injection at the injectors ends up appearing to be a problem, you can dump the injectors into an ultrasonic cleaner for a quick flush clean out. Note this isn't as good as new injectors, or getting them pro cleaned and flowed    
    • All I can say is, that's still bloody awesome! No plans on caging it I'm guessing?
×
×
  • Create New...