Ac-Kan2001

Hey everybody, I hope someone can give me some advice, i have a 2001 Acura CL-S type, for some time its been giving off a loud humming noise as soon as i start up my car, a month ago my transmission failed on me and i had one rebuilt but still now my car is still making the same noise humming noise and i was wondering could this still be the transmission. Any suggestions?????

ib_jimmy

I'll move this to the 2nd gen CL Problem and Fix. You'll probably have a better chance there.

iisylentii

sounds like a intake to me ?

type_speed

You might want to turn your a/c off before you turn off your engine. Could be the a/c running right after u turned your car on. I doubt its the transmission. Could be the timing belt rotating. the cams turning. blah blah. so many things. try the a/c thing.

typeS6S

first question is though do you have an aftermarket intake or a drop in k&N?

gaping46and2

iTrader: (2)

If you have the stock intake, you might want to make sure the top is secured properly. There are two tabs on the inner side closest to the engine which are easily broken, and the top will make a humming or resonating sound. Both my tabs are broken (because of the dealer), and I have it tied down with zip ties atm until I get an icebox.

01clsstock

i hear a humming when i am was going in reverse than go forward is that humming thwe mirrors moving?

gaping46and2

iTrader: (2)

Probably, put the mirror switch to either the right or the left and see if you hear the humming noise. The passenger mirror tilts when the switch is in the middle position when the car is put into reverse.

pimp'nthegold712

I also have a 2001 CL type-s and the thing hums so loud....i do have an aftermarket intake on it but i had to take it off for a little while and i put the stock box on and it still made an annoyingly loud humming noise...its like a constant hum like a boat or plane.