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Flex Pipe leak?

 
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Old 05-11-2009, 10:45 PM
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Flex Pipe leak?

hey guys.

I did my header/cat a while back and I think I have an exhaust leak. I have a hissing noise, and I can't figure out where it's coming from. It sounds like it's coming from underneath the car, but I know it's not the slip fit pipe that I have as I had that clamped down with powertools.

My question is could my flex pipe be broken and leaking there?
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Old 05-11-2009, 10:51 PM
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Re: Flex Pipe leak?

yup, thats one of the most common exhaust leaks.
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Old 05-11-2009, 11:14 PM
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Re: Flex Pipe leak?

Well that blows. I'll have to confirm that's where it's coming from. I don't smell fumes, but it's driving me crazy!
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Old 05-12-2009, 01:47 AM
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Re: Flex Pipe leak?

that where mine leaked from! it made that same hissing noise.
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Old 05-20-2009, 05:12 PM
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Re: Flex Pipe leak?

Bringing up my thread instead of making a new one.

So I pulled code 0420 today (cat) and that made me think, could it be that something in my cat is rattling around causing the hissing noise?
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Old 05-20-2009, 09:53 PM
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Re: Flex Pipe leak?

A rattle and a hiss or two different things! I still say flexpipe. Dose the cel stay on or dose it come on after driving a few minutes!
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Old 05-20-2009, 10:46 PM
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Re: Flex Pipe leak?

Errm. I erased the code once, it came on after I was on the highway the other day for about 15 mins. Same story the second time it came up.
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Old 05-23-2009, 02:04 PM
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Re: Flex Pipe leak?

My cel just came on the other day.. got it checked and it threw the same code> cat converter below threshold.. Since I have an exhaust but not a header, I'm thinking about saving up for one of those tri-y header reps that they're selling in pp and ht, and combining it with a test pipe or a high flow cat. I dont have a hissing noise tho i wish i could've helped you. Is youre flex pipe oem?
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Old 05-23-2009, 05:51 PM
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Re: Flex Pipe leak?

Not an oem flex pipe, but I solved the problem. My o2 sensor wasn't tightened down all the way, was leaking through there. I tightened it up real good and we're good to go.
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