Murano Muffler Flange rust - Nissan Murano

TC936 · 09-26-2010, 10:29 PM

I just noticed the exhaust flange has rusted on my '05 with 55k . My son who drives the car didn't notice the louder exhaust due to increased radio volume. I have been searching the blogs and noticed this is a common problem with Muranos. The fix seems to be a new pipe welded in when the rest of the system is in good shape.
Has Nissan addressed this problem? What size diameter pipe is used? Has anyone tried walker repair flanges? Thanks for any response.

**Corin** · 09-26-2010, 11:50 PM

I'm not sure what the diameter is, but I would highly recommend going to a welding/muffler shop. Not Midas or any general shop, but some place that will actually cut out the pipe and weld something in it's place (either a new flange or just weld a pipe and get rid of the flange altogether).

You probably saw my other posts about me doing that, but just to re-iterate it would have been a $1300+ repair with replacement OEM parts, but instead I think I got a better solution as now I don't have to deal with the flange at all, and it only cost me $65. You just can't beat that, unless you know how to do it yourself!

TC936 · 09-27-2010, 02:49 PM

I went to Meineke muffler and had them weld new pipe in. $65 and about 35 minutes and on the road. Thanks again

MuranoSLVER · 09-27-2010, 05:27 PM

I also paid $65 to weld mine at a local spanish shop. Engine running so smooth that I'm back to double-checking if engine is running sometimes. Good luck.

jeanguy · 09-27-2010, 09:18 PM

Hi
My MO has been getting louder and louder for the last few months.

I guess something is wrong with the exhaust system

How can I check where? rust on muffler or flange?

MO seems to have two mufflers : one in the middle and one in the back..right?

**njjoe** · 09-28-2010, 11:24 AM

Quote:

Originally Posted by jeanguy

MO seems to have two mufflers : one in the middle and one in the back..right?

Yes, that is correct.

Checking for most exhaust leaks is fairly simple. Start your car, let it idle in Park, get down on the ground, and listen for leaks. The flanges connecting the exhaust components appear to be the weak links in the system. Pay close attention to them.

Murano Muffler Flange rust-exhaust-flanges.jpg

-njjoe

jeanguy · 09-28-2010, 05:37 PM

Yes. Today I looked underneath and found the problem expected. You guys are awesome!

I attach a photo of my rust out flange. The two pipes are completely disconnected!!

A and B correspond to the flanges in the schematic plot.

Now I am concerned how to fix this. Repairing is very very expensive with the dealers here in Montreal. (They take the car and replace everything and charge thousands!!!bloody hell.i will never go back there)

I really need a cheaper solution..here..should I maybe drive to the US and find a small shop to do it?

**njjoe** · 09-28-2010, 06:30 PM

jeanguy-

There is no need to visit the dealer for this one. Any reputable muffler shop can cut out a few inches on either side of the flange and weld in a new pipe segment.

-njjoe

jeanguy · 09-28-2010, 06:31 PM

Quote:

Originally Posted by njjoe

jeanguy-

There is no need to visit the dealer for this one. Any reputable muffler shop can cut out a few inches on either side of the flange and weld in a new pipe segment.

-njjoe

do you have any idea how much it usually cost on a repair like this?

**njjoe** · 09-28-2010, 06:35 PM

Quote:

Originally Posted by jeanguy

do you have any idea how much it usually cost on a repair like this?

If you check out the earlier posts in this thread you will see that TC936 and MuranoSLVER each paid $65 (US) for the repair.

-njjoe

**Corin** · 09-28-2010, 08:24 PM

as did I, 2nd post in this thread.

jeanguy · 09-29-2010, 11:59 PM

Quote:

Originally Posted by Corin

as did I, 2nd post in this thread.

Did the shop put in a flange to connect the two pipes, or simply welder the two pipes with a new pipe in between?

I'm going to a shop tomorrow.
Your information is highly appreciated.

Thank you

**Corin** · 09-30-2010, 01:15 AM

Quote:

Originally Posted by jeanguy

Did the shop put in a flange to connect the two pipes, or simply welder the two pipes with a new pipe in between?

I'm going to a shop tomorrow.
Your information is highly appreciated.

Thank you

Removed the flange entirely, just welded the two pipes with a new pipe in between. A flange is just going to be extra cost either way you slice it (pun intended) so there's no need for it.

Mr3Putt · 09-30-2010, 06:56 AM

Here's a shot of my fixed flange. It cost $50. Midas wanted to replace from the cat back for $750.... Print this photo & Find an independent shop...

jeanguy · 10-06-2010, 02:12 PM

Went to a muffler shop and had it fixed..I think beautifully.

The guy welded in a flange.

The white stuff is the anti-rust spray.

costs 50 CAD.

The shop is so crowded, dusty and noisy...four welders working at the same time....u have nowhere to hide from the ultra-violet rays as it was raining hard outside...

can not complain much for 50 bucks..

09-26-2010, 10:29 PM	#1 (permalink)
TC936 Registered User Join Date: Sep 2005 Location: NY Posts: 7	Murano Muffler Flange rust I just noticed the exhaust flange has rusted on my '05 with 55k . My son who drives the car didn't notice the louder exhaust due to increased radio volume. I have been searching the blogs and noticed this is a common problem with Muranos. The fix seems to be a new pipe welded in when the rest of the system is in good shape. Has Nissan addressed this problem? What size diameter pipe is used? Has anyone tried walker repair flanges? Thanks for any response.

09-26-2010, 11:50 PM	#2 (permalink)
Corin Moderator Join Date: Mar 2004 Location: Seattle Area Posts: 2,241	I'm not sure what the diameter is, but I would highly recommend going to a welding/muffler shop. Not Midas or any general shop, but some place that will actually cut out the pipe and weld something in it's place (either a new flange or just weld a pipe and get rid of the flange altogether). You probably saw my other posts about me doing that, but just to re-iterate it would have been a $1300+ repair with replacement OEM parts, but instead I think I got a better solution as now I don't have to deal with the flange at all, and it only cost me $65. You just can't beat that, unless you know how to do it yourself! __________________ ~ Corin ---------------------------------------- 2005 MO SL AWD, Platinum w/ Charcoal Cloth, Sunroof Pkg, Tow Pkg, StonGard, Stainless "Z" Grill, air horns, ipod magic box, Garmin c320, Carseat 2008 Zap Xebra Electric Car (with many upgrades) 2011 Nissan Leaf (100% electric, 100% awesome! Got it 4/1/2011)

09-27-2010, 05:27 PM	#4 (permalink)
MuranoSLVER Registered User Join Date: Oct 2008 Location: Montreal, QC Posts: 599	I also paid $65 to weld mine at a local spanish shop. Engine running so smooth that I'm back to double-checking if engine is running sometimes. Good luck. __________________ SLVER ----------------- 2004 SL AWD

09-28-2010, 05:37 PM	#7 (permalink)
jeanguy Registered User Join Date: Jun 2009 Posts: 34	Yes. Today I looked underneath and found the problem expected. You guys are awesome! I attach a photo of my rust out flange. The two pipes are completely disconnected!! A and B correspond to the flanges in the schematic plot. Now I am concerned how to fix this. Repairing is very very expensive with the dealers here in Montreal. (They take the car and replace everything and charge thousands!!!bloody hell.i will never go back there) I really need a cheaper solution..here..should I maybe drive to the US and find a small shop to do it? Attached Thumbnails

09-28-2010, 06:30 PM	#8 (permalink)
njjoe Super Moderator Join Date: Jul 2005 Location: Jersey Shore (not THAT Jersey Shore, the real one) Posts: 11,719	jeanguy- There is no need to visit the dealer for this one. Any reputable muffler shop can cut out a few inches on either side of the flange and weld in a new pipe segment. -njjoe __________________ 2005 SL AWD, Platinum -OEM HID conversion & HID fogs -OEM iPod interface -Upgraded (non-Bose) speakers - Pioneer TS-A1702C & TS-G1643R -Muth signal mirrors -Valley Industries hitch and wiring harness -Aluminum fuel tank shields

09-27-2010, 02:49 PM	#3 (permalink)
TC936 Registered User Join Date: Sep 2005 Location: NY Posts: 7	I went to Meineke muffler and had them weld new pipe in. $65 and about 35 minutes and on the road. Thanks again

09-27-2010, 09:18 PM	#5 (permalink)
jeanguy Registered User Join Date: Jun 2009 Posts: 34	Hi My MO has been getting louder and louder for the last few months. I guess something is wrong with the exhaust system How can I check where? rust on muffler or flange? MO seems to have two mufflers : one in the middle and one in the back..right?

09-28-2010, 08:24 PM	#11 (permalink)
Corin Moderator Join Date: Mar 2004 Location: Seattle Area Posts: 2,241	as did I, 2nd post in this thread. __________________ ~ Corin ---------------------------------------- 2005 MO SL AWD, Platinum w/ Charcoal Cloth, Sunroof Pkg, Tow Pkg, StonGard, Stainless "Z" Grill, air horns, ipod magic box, Garmin c320, Carseat 2008 Zap Xebra Electric Car (with many upgrades) 2011 Nissan Leaf (100% electric, 100% awesome! Got it 4/1/2011)

09-30-2010, 06:56 AM	#14 (permalink)
Mr3Putt Super Senior Member Join Date: Oct 2003 Location: Pittsburgh, PA Posts: 1,569	Here's a shot of my fixed flange. It cost $50. Midas wanted to replace from the cat back for $750.... Print this photo & Find an independent shop... __________________ Former owner of ~~~~> Black O3 SE AWD

10-06-2010, 02:12 PM	#15 (permalink)
jeanguy Registered User Join Date: Jun 2009 Posts: 34	Went to a muffler shop and had it fixed..I think beautifully. The guy welded in a flange. The white stuff is the anti-rust spray. costs 50 CAD. The shop is so crowded, dusty and noisy...four welders working at the same time....u have nowhere to hide from the ultra-violet rays as it was raining hard outside... can not complain much for 50 bucks.. Attached Thumbnails

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