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Rust on Exhaust Pipe

8 messages,  Last post on Apr 20, 2009 at 10:54 AM

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What is this discussion about? Mazda CX-9, Exhaust, SUV


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#1 of 8
Rust on Exhaust Pipe by hardyh
Nov 20, 2008 (8:33 am)
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Hi,
 
I bought brand new CX-9 GT 2.5 months back. After driving for a week, I noticed a rusty looking marks on the exhaust pipe, which I guess came along with the fuel exhaust.
 
Is it normal for a new car showing rusty lines? You could actually wipe the rusty marks with hand.
 
I informed the dealer after a week he says it is because of condensation and should go away after break in period. But after 2000 miles I still see the same rusty fluid coming out. I left the vehicle with dealer yesterday and he said he is going to take pictures and will send it to mazda.
 
I don't know if it is a faulty pipe or something else going on.
Any suggestions??
 
Hardy
#2 of 8
Re: Rust on Exhaust Pipe [hardyh] by hardyh
Nov 21, 2008 (12:11 pm)
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Replying to: hardyh (Nov 20, 2008 8:33 am)

Any body, any suggestions please?
#3 of 8
Re: Rust on Exhaust Pipe [hardyh] by hardyh
Nov 23, 2008 (5:24 pm)
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Replying to: hardyh (Nov 21, 2008 12:11 pm)

Cmon, Anybody can suggest something???
#4 of 8
Re: Rust on Exhaust Pipe [hardyh] by steve_ HOST
Nov 23, 2008 (6:31 pm)
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Replying to: hardyh (Nov 23, 2008 5:24 pm)

My guess is that it's just from condensation, especially if it's just rust you get when you wipe it off, and it's not oily. If it's from condensation, then it's normal.
#5 of 8
Re: Rust on Exhaust Pipe [steve_] by tidester HOST
Nov 23, 2008 (8:59 pm)
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Replying to: steve_ (Nov 23, 2008 6:31 pm)

I concur.
 
tidester, host
SUVs and Smart Shopper
#6 of 8
Re: Rust on Exhaust Pipe [tidester] by steve_ HOST
Nov 23, 2008 (9:05 pm)
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Replying to: tidester (Nov 23, 2008 8:59 pm)

Also, your miles don't seem especially low for the length of time you've owned your CX-9, but if you are doing lots and lots of short trips, you might get more condensation and rust than someone driving a long commute at highway speeds most of the time.
 
Please let us know what the dealer says.
#7 of 8
Re: Rust on Exhaust Pipe [steve_] by hardyh
Dec 10, 2008 (2:56 pm)
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Replying to: steve_ (Nov 23, 2008 9:05 pm)

Steve, You are correct , if I am making lot of short trips, there will be more rust. But it is so unusual to have the rust in just 2 months of owning the vehicle.
 
Anyways I got my car back from the dealer. Though he didn't do any work on the rust, he sent the pictures to mazda and waiting for any response.
 
Anyone else having the same issue out there?
 
-Hardy
#8 of 8
Re: Rust on Exhaust Pipe [hardyh] by hssrao
Apr 20, 2009 (10:54 am)
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Replying to: hardyh (Dec 10, 2008 2:56 pm)

Hi, My CX9 is around 12 months now. I noticed rusting on the exhaust pipes recently, but it is in very bad condition. I never expected this, as my 4 year Maxima does not show any signs of rust on the pipes.I will bring it to the notice of the dealer and see what they respond. I am in NJ.
 
-HSSR

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