Vibration at speed of 80 – Infiniti QX4 2000

[Fahad]

Dear All / Mr. Eric,

I want some help form your end.

I have Infiniti Qx4 2000 model. Previously it was having 1>2 gear jerk problem ….i changed the gear with used one from 2nd hand market.
Now jerk problem finished but one problem which i found common in both case is:

when car reaches at speed of 70-80 KM….i clearly feel gear running sound in my car…like how gears work together…means the sound of gears rotation together……………i dont know what is the issue….is it drive shaft issue….or what ?

One another related problem is……..while moving my gear shift by hand….from R > N > D ……i can just push the shift (without pressing button) and can move in between R > N > D ……while from 1 > 2 ….2 >1 has no issue………………is this have any relation with vibration..
(A pictures attached for reference)

Can you please help me…..

Attachments:

• gear_shift.jpg

Topic

[college man]

See if this helps. You should have to press the button to go into drive. You don’t need
the button from d to n. You would also need the button to go into reverse or park.

https://www.ericthecarguy.com/faq/determining-the-causes-of-vehicle-vibrations

[Fahad]

Dear Mr. Eric…

I want to explain the problem. .

I think i can say its noise..but not particularly vibration. .
When i drive n car come in speed of 60-80…above… i listen noise like : ” gear works together..plus humming in car ..”
I will also try to record some video for my help….
Can it be gear problem…wheel bearing…boots..transmission mounts..or any problem u think..?
It goes off when speed come below 60.

[college man]

How many miles on the vehicle?

https://www.ericthecarguy.com/faq/diagnosing-noises-in-your-car

[Fahad]

It is now around 220000km dear.

[Fahad]

Hey!

Can u please help me the cause of vibration.
I changed the transmission now. Vibration now start from 60…as soon as i go up in speed it remains same…but when slow down below 60 it goes off.
It seems like grinding n rubbing noise..from front..

Can it be transmission problem again?
Can it be lower arm noise in any way?
Any bearing noise?

I m worried .. pls help.. as i am spending money on it..

[Author]

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