I did a quick search and I didn't find a topic on this so here goes.

Ok so i'm getting concerned about this. Sometimes when I start the car, I would hear a grinding sound under the hood for about 1 second. It runs fine and everything, but it's been bugging me lately. Any ideas what it could be and how I can fix it? A friend of mine said it could just be the belts. I'm pretty confused.

Btw, I have no mods.

 

bad sparkplugs make that noise, my guess is it's not providing strong enough of a spark to start your engine or it's taking a little too long.... correct me if I'm wrong anyone

 

Meh, the engine start instantly with no hesitation so I doubt it's the spark plugs. I could be wrong though.

 

My G makes the same noise but only on about 1 in 5 startups. Not something
you could take to the stealership because it isn't consistent and only does it
when it's sat overnight.

 

Ok, so i'm not the only one.

 

X3 here. Only when it's a cold start. Today it didn't do it though, and it was a freezing cold start.

Either way, I bet the stealership won't find it...

I thought maybe it's the IAC gurgling for a split second as the A/F ratio stabilizes, but I somehow doubt it. I'd swear it sounds like something more internal that that.

 

Yeah, mine didn't do it since I started this thread.

 

i get the same noise almost every day... i beleave its the ABS self check...