Hum coming from the rear 35-40 mph

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Car: 2004 Infinity G 35

Hum coming from the rear 35-40 mph

Postby Drive35 » Mon Sep 25, 2017 10:02 pm

2004 G 35 sedan, Im hearing a humming sound mostly between 35-40 mph coming from the back. I have new tires, differential oil is good.

Wheel bearing or differential bushing?


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Re: Hum coming from the rear 35-40 mph

Postby Q451990 » Wed Sep 27, 2017 7:50 am

I don't have an answer for you, but I have a friend who's 05 G sounds like a Cessna is following him down the road. He has never checked or changed his differential oil, so who knows... Please post up here if you figure it out.

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Car: 2006 Infiniti G35

Re: Hum coming from the rear 35-40 mph

Postby Monster06 » Tue Oct 31, 2017 5:53 pm

I would say more than likely it is the wheel bearing. I have an 06 coupe and just replaced all four wheel bearings having 3 of them bad. Had a howling sound coming from rear and finally replaced it. Then I was able to actually hear that the front ones were bad as well. I think the differential bushing would be a little more noticeable than a humming sound. I am curious to know what you find/found out it was though.

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