Car is 93 MT Civic Coupe EX with a D16Z6 and 138K

Low down: Last november I changed Bearings, driveshafts, tierod ends (I & O) and LBJ. (drive shafts only since the rubber had split) Since then I have a humming noise (similar to the sound of aircraft engines in a passenger jet when cruising). It starts occuring above 25 mph and increases/decreases with speed but its not engine noise as it overshadows the noise of the engine. When I push in the clutch and coast, the noise persists at whatever speed I am currently at and eventually stops when the car stops.

 

How old are your tires? What size tires are you running.

 

did u change bearings as in front wheel bearing?
had similar humming noise when speed increases in my bro in law celica
my problem was a bad front wheel bearing even though i checked for play and it didnt move

for your car i would try rotating tires first to see if the problem still occurs
if not its your tire

maybe need wheel balance
tire pressure not right

 

Maybe one of the wheel bearings was damaged during installation.

As mentioned, tires can also make a whining noise.

 

Tires were replaced before the noise started occuring. OEM sized tires according to tire rack. I had the wheel bearings replaced as well as the other items mentioned in the original post. How do I determine which wheelbearing (or if its the wheel bearing?)

 

if its a bearing thats going out on lets say driver side
youll def hear it on the driver side
u forgot to mention where the noise is coming from?

i just hope its not your tranny

 

It appears to be coming from the front, I am unable to determine where its coming from while being inside the car, my attempts at using a digital recorder under the hood were futile as all I heard was the entire under the hood area

 

SHaking the tires dont reveal anything either.

 

what i usually do is jack it up on stands and run the engine on any gear except reverse and get under the car and someone speeds up to w/e mph the sound occurs and i would go under or try to locate the sound on the outside

i know it sounds scary but if u do it right its the only way unless you take it to shop and and put it on four post lifter

anyone got any good ideas better than me?

 

Im wondering if the lack of weight on the suspension will cause the problem not to exist.