Cause of my horrible exhaust note and ses light?
lol...
I think I may have figured out why my exhaust has been sounding like crap. Ever since I put my Mac o/r h pipe on I have been forever trying to find out why I keep getting this horrible "BAP BAP BAP BAP BAP!!!!..." sound when I would get on the throttle or at certain rpms. I thought it was a leak at the manifold but the more I listened it sounded like it was coming from the rear. I took the car on about a 500 mile trip and it kept sounding worse and worse then the cel came on. Autozone read it as a PO133 front o2 drivers side sensor. I just climbed under it and pulled it out and noticed my drivers side muffler. Do you think this was possibly causing my cel to come on because of a back pressure issue? Why did the muffler blow out like this? I noticed the other day when you would tap on it you'd hear a rattling sound like there's rust inside. Do you think maybe the baffles inside rusted out or something and were rattling in there enough to make it blow out? Oh well I love the MAC sound so I guess it's time to order a new catback. http://img384.imageshack.us/img384/6079/p1010095wh1.jpg http://img384.imageshack.us/img384/7025/p1010092wr5.jpg |
holy cow, the hole itself shouldn't cause an issue...but if the baffles inside (I think MACS have a honeycomb substance in the muffler) have rusted and crumbled, there could be some blockage that would cause an issue. Once way to find out, you're going to be replacing the catback from the looks of things, I'll bet the CEL goes out with the new exaust.
the more I look at the pictures, the more it looks like you ran over something or kicked something up to do that. Those look like cracks vs the normal rotting. I'm sure it sounded terrible. |
Originally Posted by cobra1923
(Post 279478)
the more I look at the pictures, the more it looks like you ran over something or kicked something up to do that. Those look like cracks vs the normal rotting. I'm sure it sounded terrible.
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I had flowmasters which I like to call rustmasters. Not thier fault but non stainless steel mufflers rust from the inside out thats why I will only buy SS. Remember there is condensation inside the exhaust at start up.
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Yeah I wish I could afford some ss right now but I'm pretty much broke. Really though in all honesty you save money buying stainless systems if you plan on keeping the car more than a couple of years. I think MAC is probably not made as well as flowmaster but I love the sound and they don't cost as much. I just paid a little over 300 for my MAC catback and the flow catback is around 400. Like you said though venom they are gonna rust anyway unless you go stainless. I just think flows have a little more to rust away than the macs. I guess that's why the macs are louder. :D
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just a quick note to everyone (that cares...lol..) that I got my new mac catback on yesterday and it sounds AWESOME!! I now feel like an idiot for all the posts I made thinking I had a manifold leak. That nasty sound I was hearing was the fact that ALL the inside baffles of both of the mufflers were completely GONE! I couldn't believe when I took a look in the old ones. They were just hollow cans. hehe... No wonder it sounded like crap. Car runs 100% better too.
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awesome, congrats on gettin'er fixed up!! did the CEL go out??
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Originally Posted by v6'stang
(Post 280254)
awesome, congrats on gettin'er fixed up!! did the CEL go out??
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yea i've heard the same bout the vaccuum leaks. sux that didn't fix ur problem, but at least the shitty sound is gone!
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