2003 G35. Every time I start it after its been sitting for at least 3-4 hours there is a loud squealing sound for 5-15 seconds and then is fine the rest of the time its on. I would assume its something with the belts but im not too experienced and figured Id ask you guys. The sound is directly affected by the engine rpm. So if the engine rpm changes so will the sound but only lasts a couple of seconds. Any info would be great. Thanks.

FIXED just needed adjusted.

Thanks for the replies.

 

Most likely it's your belts. Go to the parts store a purchase a can of belt dressing. Yes, that's the name of it. Let your car run and spray a few squirts on your altenator and power steering belts. The sound should go away and no you won't hurt anything.

 

Check for a frozen (or partially frozen) idler pully or maybe it's just a loose belt. You should have about 3/4" deflection at the top when you press on it. Jack up the car, use jack stands or ramps, and remove the engine undercover. Loosen the center nut on the pully (14mm?) and adjust using the adjuster bolt looking straight down (behind the pully) till u get less than 3/4" deflection at the top. Re-tighten the nut.

 

You can get the very same results using a bar of soap, then put it back in your Moms shower.
Tex, this ^ is a good but do you really expect someone that doesn't recognize the cause of the squeal to be adjusting his belts? Better idea would be to have them replaced if they're making noise, they're probably dried/cracked anyway...Gary

 

Hey, I just posted what I did when it happened to me....

These young guys will never learn a thing if they don't roll up some sleeves and just do it.

 

the belt just needed adjusted. Thanks for the replies.