Exhaust leak on OEM Exhaust?

phohman · 04-06-2011, 10:20 AM

Hey guys, I just purchased a 2010 Nismo and have noticed at first start-up a exhaust noise/leak for about a minute and then it will go away. I can't feel any leaks, but it's hard to get your hands in there. Has anybody seen or heard about an exhaust leak (or relation to) The car has only 5K and I know it is under warranty just want to see if anyone else has this condition? Thanks

Liquid_G · 04-06-2011, 11:09 AM

what makes you think there is an exhaust leak?

Red__Zed · 04-06-2011, 11:11 AM

Quote:

Originally Posted by Liquid_G

what makes you think there is an exhaust leak?

this

chops · 04-06-2011, 11:17 AM

i think i know what you're talking about...when you start it up it sounds like something is rattling/leaking slightly, but after about 30seconds when the RPM's drop, the sound is gone. correct?

thats not an exhaust leak...and i dont know what causes it, but its "normal"

BeachZTT · 04-06-2011, 11:25 AM

Welcome! Congrats! They all sound like that at initial start up. Part of the cold start cycle.

esfourteen · 04-06-2011, 11:29 AM

cold start cam adjustments to warm up the cats for emissions, lasts about 30 seconds or so

phohman · 04-06-2011, 11:49 AM

OK Great so I don't neek to waist my time at the Dealership Thanks!

SoCal 370Z · 04-06-2011, 11:51 AM

Did you purchase your Z new or used?

370zproject · 04-06-2011, 01:10 PM

Quote:

Originally Posted by SoCal 370Z

Did you purchase your Z new or used?

he said it had 5 k miles on it

kenchan · 04-06-2011, 01:45 PM

washer mod?

onzedge · 04-06-2011, 02:52 PM

Quote:

Originally Posted by kenchan

washer mod?

Kenmore FTW

SoCal 370Z · 04-06-2011, 02:58 PM

Certainly a chance, and I'm not saying this is the issue, that the previous owner had an aftermarket exhaust installed and returned your Z to factory prior to selling. Parts that are not supposed to be reused, but replaced with new, such as bolts, washers, and gaskets, rarely get replaced by the DIYer. Could just be an ill-fitting connection due to the above that seals itself when heated.

semtex · 04-06-2011, 03:35 PM

Quote:

Originally Posted by kenchan

washer mod?

That was my first thought too.

kenchan · 04-06-2011, 03:35 PM

Quote:

Originally Posted by SoCal 370Z

Certainly a chance, and I'm not saying this is the issue, that the previous owner had an aftermarket exhaust installed and returned your Z to factory prior to selling. Parts that are not supposed to be reused, but replaced with new, such as bolts, washers, and gaskets, rarely get replaced by the DIYer. Could just be an ill-fitting connection due to the above that seals itself when heated.

kenchan · 04-06-2011, 03:35 PM

Quote:

Originally Posted by semtex

That was my first thought too.

04-06-2011, 10:20 AM	#1 (permalink)
phohman Base Member Join Date: Feb 2011 Location: Katy-Houston Tx. Age: 61 Posts: 124 Drives: 2012 370Z Nismo Rep Power: 14	Exhaust leak on OEM Exhaust? Hey guys, I just purchased a 2010 Nismo and have noticed at first start-up a exhaust noise/leak for about a minute and then it will go away. I can't feel any leaks, but it's hard to get your hands in there. Has anybody seen or heard about an exhaust leak (or relation to) The car has only 5K and I know it is under warranty just want to see if anyone else has this condition? Thanks

04-06-2011, 11:09 AM	#2 (permalink)
Liquid_G A True Z Fanatic Join Date: Aug 2009 Location: Chicago Burbs Posts: 1,439 Drives: 09 370z Supercharged Rep Power: 43	what makes you think there is an exhaust leak? __________________

04-06-2011, 11:25 AM	#5 (permalink)
BeachZTT Track Member Join Date: Jul 2009 Location: Colorado Posts: 746 Drives: '10 BC ZR T/S/Nav Rep Power: 16	Welcome! Congrats! They all sound like that at initial start up. Part of the cold start cycle. __________________ '10 ZR Black Cherry Sport/Touring/Nav, Swift Springs, Stillen G3s, 15mm-F 20mm-R Spacers, SPC, Spoiler Solutions Rear Wing, Stubby Antenna

04-06-2011, 11:29 AM	#6 (permalink)
esfourteen A True Z Fanatic Join Date: Mar 2010 Location: LI, NY Posts: 1,375 Drives: 40th TT Rep Power: 18	cold start cam adjustments to warm up the cats for emissions, lasts about 30 seconds or so __________________ Build Thread \| GTM TT Install Thread \| Engine Build Thread

04-06-2011, 11:51 AM	#8 (permalink)
SoCal 370Z A True Z Fanatic Join Date: Feb 2009 Location: US of A Posts: 2,842 Drives: Answers Rep Power: 33	Did you purchase your Z new or used? __________________ ( Click to show/hide ) Why I NEVER say NO to the Panda Lou Fusz!!!

04-06-2011, 11:17 AM	#4 (permalink)
chops A True Z Fanatic Join Date: Oct 2010 Location: NA Posts: 1,732 Drives: NA Rep Power: 21	i think i know what you're talking about...when you start it up it sounds like something is rattling/leaking slightly, but after about 30seconds when the RPM's drop, the sound is gone. correct? thats not an exhaust leak...and i dont know what causes it, but its "normal"

04-06-2011, 11:49 AM	#7 (permalink)
phohman Base Member Join Date: Feb 2011 Location: Katy-Houston Tx. Age: 61 Posts: 124 Drives: 2012 370Z Nismo Rep Power: 14	OK Great so I don't neek to waist my time at the Dealership Thanks!

04-06-2011, 01:45 PM	#10 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141520	washer mod?

04-06-2011, 02:58 PM	#12 (permalink)
SoCal 370Z A True Z Fanatic Join Date: Feb 2009 Location: US of A Posts: 2,842 Drives: Answers Rep Power: 33	Certainly a chance, and I'm not saying this is the issue, that the previous owner had an aftermarket exhaust installed and returned your Z to factory prior to selling. Parts that are not supposed to be reused, but replaced with new, such as bolts, washers, and gaskets, rarely get replaced by the DIYer. Could just be an ill-fitting connection due to the above that seals itself when heated. __________________ ( Click to show/hide ) Why I NEVER say NO to the Panda Lou Fusz!!!

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