I start my car in the morning and at idle, I hear this low humming noise coming from the engine. So I change all my belts. Still the same noise. It only last for about 5 seconds or less. It sounds mechanical though. It only happens once a day at mornings or if car hasn't been started up for a while.
Ive search in here and no one has the same problem. I know what air intake sounds like. And its not the wheel bearings cause I'm not rolling.
This might help: All I have are 421 dc headers k&n short ram and 2 1/4 custom exhaust SPP. and 8 mm magnacor spark wires. ngk spark plugs. Everything else is stock.
Can someone help me out and give me your input? Thanks.

 

What model teg do you have? If it's equipped with ABS, that could just be from the ABS control unit. I sometimes hear a kind of "mmmmwhhhhhaaaaa" for a few seconds after I start my car. I think it's just the ABS system priming itself...

 

i have the humming noise too but mine just kinda goes "MMMMMMMMMMMM" then ends after a few seconds

 

weird, ive had more of a "HUMMMMMM'a" j/k, i get that too. i dont think its anything bad. but who knows. mabye ask the dealer. but dont fall for some of thier crap lies

 

I have a G2 gs 91. So do you think its the ABS? So I don't have to worry about it?

I make sure my car is well maintained and to hear some wierd sound from the engine gets my attention.

Does anyone else thinks its the ABS? Thanks red94teg.

 

Tommorrow morning I'm going to pop the hood and see where that is coming from. Let you guys know tommorrow.

 

i hope thats it cause i get that just once! and thats right after i turn my car on...but it dont seem to cause any problems

 

Yeah I have a G3 LS and my ABS resorvior or whatever it is makes the sound.

 

I know that the IACV on most Integra's is pretty loud. That's a constant hum.

 

Okay I'm not alone. Thanks. Latley, there hasn't been any sounds when I first time start it up.