Exhaust rattle noise!! Help!!

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
gsrteg
Posts: 208
Joined: Tue Dec 04, 2012 6:29 pm
Car: 1990 300zx Twin Turbo Cherry Red Pearl

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Hey all, just installed full 3' tbe. small rattle noise sounds like a heat shield but idrkkk?! im gunn jack it up tommarow and look but any advice? heads up? anything?!


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NolimitZ32
Posts: 7042
Joined: Fri Jun 27, 2008 9:07 am
Car: 91 AG2 2+0 TTMT swap/E39 BMW 540i6/E53 4.6is Dinan S3
Location: Houston, TX

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Loose bolts?

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t.mcginley.jr
Posts: 1547
Joined: Fri Jun 01, 2012 5:50 am
Car: 2002 Nissan Altima SE 3.5
1990 Nissan 300ZX NA 2+0
1966 Ford Mustang
Location: New Jersey, USA

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Mine rattles too whenever I let go of the accelerator. All of my bolts are tight but I think mine rubs on that flat metal plate in the middle of the car. I have an NA and my mid pipes were made by some exhaust shop so they don't fit exactly right so the cat back sits kinda funny on that middle support. Just look for loose bolts and anything rubbing or touching the exhaust.

isZ
Posts: 4
Joined: Wed Jun 12, 2013 11:06 pm
Car: 93Z 2plus2 NA Auto.

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Mine was an NA too turned out it was the flat metal heat sheilds on the exhaust near the middle. Rocks get in between and rusty bolts make it hard to tighten I just took mine off and fixed it.


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