Rattle noise

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
nekrofuent
Posts: 8
Joined: Wed May 29, 2013 12:10 am
Car: 300zx TT

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Can you guys help me out. Every time I start up my 300zx and begin to drive I hear a loud rattling noise coming from the driver side underneath the engine. After driving for a while it goes away. Anyone know? :confused:


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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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That could be just about anything lol it's best to just jack it up and try grabbing/shaking stuff to see if it moves. A video would also help!

Are you sure its rattling and not like grinding/scraping?

nekrofuent
Posts: 8
Joined: Wed May 29, 2013 12:10 am
Car: 300zx TT

Post

t.mcginley.jr wrote:That could be just about anything lol it's best to just jack it up and try grabbing/shaking stuff to see if it moves. A video would also help!

Are you sure its rattling and not like grinding/scraping?
yea its a rattle noise. Cant figure it out. Ill post a video in a bit

nissanfreak12
Posts: 1709
Joined: Sun Jan 23, 2011 4:07 pm
Car: 92 300zx 2+2 TT
Location: Denver, CO

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Are your heat shields still on the manifold? Does the rattle move with the RPM's? Is it at a certain RPM?

nekrofuent
Posts: 8
Joined: Wed May 29, 2013 12:10 am
Car: 300zx TT

Post

nissanfreak12 wrote:Are your heat shields still on the manifold? Does the rattle move with the RPM's? Is it at a certain RPM?
Not sure. It's when I ever I accelerate or rev. It's very loud when I first start it up and drive but after driving awhile the noise goes away.


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