Drive Train Noise

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bullrider70
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Drive Train Noise

Postby bullrider70 » Fri Jan 11, 2013 6:48 am

My 2003 G35 Sedan has increasing noise from the drivetrain.

it is noticeable around 40 mph and increases as speed increases.

the sound is more of a "whine" than anything else, similar to the engine rpms if highly revved, but the tach relates normal rpms. we have changed tires, put car on rack to see if running it created same noise (not), put car in neutral going down the road (no change in noise).

we went to infiniti dealer this week, they had two technicians look/drive it, and think it is transmission not shifting out of 3d - but the tach does not show high rpms....

HELP?


joe603
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Re: Drive Train Noise

Postby joe603 » Fri Jan 11, 2013 7:36 am

Is it coming from the rear? Maybe a rear diff issue??

bullrider70
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Re: Drive Train Noise

Postby bullrider70 » Fri Jan 11, 2013 7:52 am

We don't think so but as we can't hear noise unless on road, locating is always difficult.

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audtatious
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Re: Drive Train Noise

Postby audtatious » Sat Jan 12, 2013 6:28 pm

Possible wheel bearing?

bullrider70
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Re: Drive Train Noise

Postby bullrider70 » Sat Jan 12, 2013 6:32 pm

We put it on the rack to check all the wheels...turning them were fine.

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gwoods
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Re: Drive Train Noise

Postby gwoods » Sun Jan 13, 2013 11:02 am

How many miles? My money is on wheel bearings. I did both fronts before 100k miles due to whinning.

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RED_DET
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Re: Drive Train Noise

Postby RED_DET » Mon Jan 14, 2013 7:36 pm

My transmission whines on cold drives until the fluids warm up. Just started doing it this year, never any issues before, but a common problem I have heard about. Have you changed the diff/trans fluid?

bullrider70
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Re: Drive Train Noise

Postby bullrider70 » Tue Jan 15, 2013 10:12 am

About 110,000 miles on drivetrain.

But warm or cold it still whines.

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kmckis1029
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Re: Drive Train Noise

Postby kmckis1029 » Wed Jan 23, 2013 2:45 pm

on my 2005 g35x i had a whine and it was the fuel delivery lines on the back of the engine, trying to remmeber the exact name of the parts that got changed...

fuel dampers or something like that...

bullrider70
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Re: Drive Train Noise

Postby bullrider70 » Wed Jan 23, 2013 3:23 pm

Did you notice it at certain speeds or any speed? Mine is noticeably above 30mph.

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kmckis1029
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Re: Drive Train Noise

Postby kmckis1029 » Thu Jan 24, 2013 8:36 am

it was above a certian speed... and only when i was on the accelerator. I dont remember the exact speed sorry.

Richa
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Re: Drive Train Noise

Postby Richa » Tue Jul 11, 2017 8:50 am

I have a 2004 G35 which has a similar drive line noise between around 40 mph and 60 mph. Not noticeable below 40 or above 60, although I think it is there. Haven't been able to locate the problem. Noise doesn't change when I go around turns so I don't think it is a wheel bearing.


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