Buzzing noise when starting

ANSWERS: Oil Loss, Buzzing Noise, ETC. - Nissan Forum ' Nissan Forums

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Mar 20, 2008 - 3) Yet another buzzing, rattling or whinning noise. If you own a Quest van, Maxima, Altima 3.5 and some Z/G/FX vehicles, and get a loud ... Mysterious no-spark situation with a buzzing transmission
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Buzzing noise at 2000-3000 RPM - Nissan Forums : Nissan Forum

www.nissanclub.com/...nissan-altima.../128490-buzzing-noise-2000-300...

Oct 28, 2003 - 6 posts - ‎3 authors
The "buzzing noise"; I can tell that I am not alone in having this problem but has someone figured out ... I fit does, that eliminates the brake rotors, tires, wheelbearings, CV's etc. ... BUT with an Altima it is probable the pre-cats. Loud humming noise when driving
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Head Gasket & or Damaged & Blocked Exhaust
Converter

Can't you mechanic diagnose & tell you all that?

Bad steering rack & or steering pump

Try flushing the fluid, as you should be doing every 3
years on all vehicles

After that-- have to diagnose & start changing parts-- if
you don't like the noise

does it come from inside the cabin might be a fault with the seats or seat belts as when you get in and dont put your seat belt on it makes a beeping noise untill the seat belt gets put on is it this noise could be a faulty seat sensor wouldent of thought it was the turbo hissing or screeming yes but not a buzzing noise but then i could be wrong hope this helps ivan

Sort of sounds like the timing belt broke-- if you have one

The valves may have hit the pistons & that is why it won't turn over

I don't know any of that is true & won't wish it on anyone,but
it is a place to start

glad you solved the problem

have the altanator checked out and the starter

try rocking the car back and forwards and try it again you may have jamed it

Do you have the tow package on your vehicle? If you do it sounds like your trailer electric brake controller is shorted out (normally mounted under the dash on drivers side). There should be a fuse that controls your tow package either in the fuse panel or as an in-line fuse.

If that isn't it, then I would suggest a clamp on amp meter to help you narrow down what is draining your battery. BUT have you had your battery tested to make sure it is good?

If the fuse is bad you won't hear the actuator buzzing. Sounds like something has stripped or broke.