"Bad" muffler on 2002 4Runner?
07-19-2006, 08:15 AM
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"Bad" muffler on 2002 4Runner?
Hey,
I've got a slight exhaust rattle/vibration only under acceleration on my 2002 4Runner. It sounds like a loose cat heat shield, or a pebble stuck between the cat and heat shield. I haven't spent a whole lot of time trying to diagnose it yet, but I did crawl under the truck with a rubber mallet a couple of weeks ago. The cats and cat heat shields seem fine and tight when I tap them, but when I tap the muffler, I hear the rattle. From the outside, the muffler seems OK. Has anybody had an OE muffler "go bad" (rust/crack/break on the inside, I guess) after only 4 years? Yes, I live near the ocean, but the rest of the truck is in good condition rust-wise.
If there is just something loose in there, I wonder if there's any chance that I can shake out whatever is in there if I cut the muffler off, or should I just replace it with a new muffler (likely flowmaster 40 or 50 series)? Ideas/Opinions?
Thanks guys,
G
I've got a slight exhaust rattle/vibration only under acceleration on my 2002 4Runner. It sounds like a loose cat heat shield, or a pebble stuck between the cat and heat shield. I haven't spent a whole lot of time trying to diagnose it yet, but I did crawl under the truck with a rubber mallet a couple of weeks ago. The cats and cat heat shields seem fine and tight when I tap them, but when I tap the muffler, I hear the rattle. From the outside, the muffler seems OK. Has anybody had an OE muffler "go bad" (rust/crack/break on the inside, I guess) after only 4 years? Yes, I live near the ocean, but the rest of the truck is in good condition rust-wise.
If there is just something loose in there, I wonder if there's any chance that I can shake out whatever is in there if I cut the muffler off, or should I just replace it with a new muffler (likely flowmaster 40 or 50 series)? Ideas/Opinions?
Thanks guys,
G
Last edited by GSGALLANT; 07-19-2006 at 08:17 AM.
07-19-2006, 11:20 AM
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i got magnaflow 18'' and it sounds soo awsome the stock muffler was starting to leak from the spot welds
Last edited by Elton; 07-19-2006 at 12:35 PM.
07-19-2006, 12:18 PM
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Originally Posted by 04 Rocko Taco
with magnaflows, is louder when longer? or louder when shorter? I see guy son here running everything from 12"s to 14"s to a few 18"s
07-19-2006, 12:51 PM
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the 22 or 24" magnaflow is comparable to stock sound.. the 18" (which I have) is just a bit louder than stock, with no droning at fwy speeds. the 14" is louder still, with mild droning. Just depends on what kind of sound you want.
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07-19-2006, 07:40 PM
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I was looking at my owners manual the other day and it said something about the warantee on the exhaust. Check your and see what it says. I think it is covered. Evenif it is not go to the dealership and ask.
4 Years is way too short for a muffler IMO.
4 Years is way too short for a muffler IMO.
07-20-2006, 03:30 AM
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Originally Posted by ecchamberlin
I was looking at my owners manual the other day and it said something about the warantee on the exhaust. Check your and see what it says. I think it is covered. Evenif it is not go to the dealership and ask.
4 Years is way too short for a muffler IMO.
4 Years is way too short for a muffler IMO.
07-20-2006, 06:20 AM
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Hey GSGALLANT,
I've got a 2002 as well...i live in a rust belt (Montreal,QC)...and noticed that same rattle lately on mine (only under acceleration).
at first i thought its just a heat shield that i whacked and bent off-roading...but i haven't checked yet where its coming from.
I'll do as you and check and let you know tomorrow where mine is coming from (if its the muffler too?)
-B
I've got a 2002 as well...i live in a rust belt (Montreal,QC)...and noticed that same rattle lately on mine (only under acceleration).
at first i thought its just a heat shield that i whacked and bent off-roading...but i haven't checked yet where its coming from.
I'll do as you and check and let you know tomorrow where mine is coming from (if its the muffler too?)
-B
07-20-2006, 06:53 AM
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Originally Posted by GSGALLANT
Nice thought, but the muffler is only covered under the basic warranty. It is not considered one of the major emissions components covered under the extended warranty of 8 years.
Worth a shot. I am going to replace mine soon also. Not because it is bad but I want some power gains and a better sound also.
They are remarkable quiet from the factory. My wifes 04 Taco has a louder factory sound that I actually like a lot better.
07-20-2006, 08:33 AM
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Originally Posted by ecchamberlin
Worth a shot. I am going to replace mine soon also. Not because it is bad but I want some power gains and a better sound also.
They are remarkable quiet from the factory. My wifes 04 Taco has a louder factory sound that I actually like a lot better.
They are remarkable quiet from the factory. My wifes 04 Taco has a louder factory sound that I actually like a lot better.
07-20-2006, 11:31 AM
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Originally Posted by boogyman
the 22 or 24" magnaflow is comparable to stock sound.. the 18" (which I have) is just a bit louder than stock, with no droning at fwy speeds.
07-20-2006, 01:08 PM
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Originally Posted by boogyman
the 22 or 24" magnaflow is comparable to stock sound.. the 18" (which I have) is just a bit louder than stock, with no droning at fwy speeds. the 14" is louder still, with mild droning. Just depends on what kind of sound you want.
07-20-2006, 01:45 PM
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Originally Posted by Elton
i thought flowmaster are junk
In the world of V8 hot rods they are king!
Anyway. Erik that is good to know about the 24-30. I was so close to getting one. I may try a Gibson muffler since they don't make a full cat back kit. I loved the one on my Taco.
07-20-2006, 02:07 PM
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Originally Posted by Elton
i thought flowmaster are junk
Flowmasters are a toughly built muffler with great sound and not too big under your car or truck. Anything from an 18" to 24" Magnaflow is a pretty dang big muffler IMO.
