[loudfords]

I think I have a rattle inside my muffler at lower rpms, or an exhaust leak in the muffler somewhere. Is it normal for them to go bad? Any lifetime warranty? Cheap replacements?

 

[slikirish]

You should be able to get it replaced for less than $50 as long as you don't go to the dealership and let them rape you on one.

 

[Bambooburnr]

90% of any exhaust system will rot and fall off and take out a mini van full of kids on there way to soccer practice in about 5-7 years depending on where you live

 

[penguin]

Quite normal for mufflers to go bad after a few years, particularly in cold climates where salt and other chemicals are used in the Winter.

But are you sure it's the muffler? A loose catalytic converter heat shield is also a common cause of exhaust system rattling.

 

[foci01]

But are you sure it's the muffler? A loose catalytic converter heat shield is also a common cause of exhaust system rattling.

I'd also check the heat shield over the mid muffler just at the gas tank. Mine rotted off last year and had to be re-secured

 

[loudfords]

I've pulled off a couple of the heat shields already, but I'll do some more digging....

 

[WhiteyFord]

My buddy has an 03 Zetec with a muffler so rusty you need a tetnis shot just looking at it. Doesn't seem to affect the car too much though, and this is a great opportunity to install an aftermarket exhaust system.

 

[loudfords]

Muffler was leaking too bad for the computer to run the emissions test, so it has been replaced with a piece of straight pipe.

 

[suby6]

Time for a catback!!! [driving]

 

[focusmaniaczx3]

ooo is that strait pipe from the cat flex or resonator. if its from the cat i bet that be one loud sucker

 

[lildave]

hm bout the muffler

ya well if you do want another tailpipe w muffler i have an extra 1 from my parts car call dave 517 420 6034[hatchet] [hatchet] [hatchet] [hatchet] [hatchet]

 

[loudfords]

Straight pipe only where the muffler used to be (I'm guessing the front one is the resonator and the back one is the muffler?) Sounds pretty good, and a lot cheaper than a new muffler. No cat back or anything fancy, this car is just a daily driver.

 

[focusmaniaczx3]

mine's a daily driver too. nearly 170 hp daily driver with nitrous. just because its a daily driver doesn't mean you cant mess with it. besides, putting performance parts on the car isnt just to make the car faster. its also to make it more efficient lol. well thats always been my excuse to the little lady when i buy a new shiny for the fofo and not for her