The e t c is buzzing what is causing this

2000 Falcon in Australia. sure. I am in USA , no cars like it here.
but all cars 2000 are KINDA the same, if Petrol fuel.
not told what all fails or does not fail, just the word buzz told
head lamps work ? bright, not dim, key on or off and driving?
car starts and runs and drives (the purpose of it)
all electrics work of some fail no told.
buzzing means mostly power failure.
is key off or on , buzzing
is engine running.
when any car main battery goes week , all computers in the car go mad(crazy) at 10vdc ( 12.6vdc is normal)
as the battery dies, the too low voltage caused the digital electronics to fail (not bad) they go partly off line 1 chip after the other)
and things buzz in fact may controllers self reboot endlessly as the power goes to this ******* stated. (out of spec)

if really curious learn to find out exactly what buzzes
fuses do no buzz but relays do , as the computers that run them fail at too low battery or the RELAY it self is bad.
some cars here have, 50+ fuses and 10 computer,
lots of things to fail is the word.

The buzzing noise is air in the power steering line. The reason it is only one n one side is cause when you turn the wheel it causes more pressure to build. Take the cap off the reservoir and turn the wheel back and forth all the way hold for a second on each side until the buzzing noise goes away. If that don't work then check your rack and pinion system to make sure you don't have leakage or damage from road debris.

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Not necessarily It will cause it to overheat though. Test by grabbing top radiator hose (while car is cool), start and feel for coolant flow pulsing through the hose. Pulse means pump is working.

old post
post it wont crank
or
it cranks fast but will not start.

glad you solved the problem

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

with engine running?? assuming noise is under hood here is one possible cause. sometimes pcv valve will make a buzzing noise as the little ball in there flaps around when spring gets weak. locate your pcv valve and feel it if this is noise you will feel the hose vibrating and if so replace valve

it is the electric fuel pump you hear it should not be heard but sometimes before they fail they make noise drive it until it wont start up when that happens its time to replace it must drop fuel tank to do it and it costs about 150 dollars for part. could go for some time before failing.

On the battery neg cable you will see 2 small wires going to a gray connector. Cut the connector out and re-splice the wires.

take the battery out of the veh and see if it will charge overnight on a charger, if not then the bat just ran its course I doubt it is 11 years old. Bats last anywhere from 3 to 5 years then they die if it does charge then your alternator needs to be replaced as it charges the battery when you drive, low voltage may cause the buzzing, tellin gyou there is a problem.