i have a 06 tc supercharged and has 16,000 miles on it. i've already had the serpentine belt replaced at 11,000 miles.

i live in california and it was very very hot yesterday, 100degrees? the reason im saying all this info so i can give all you pros a better senario.

last night at 9pm after work i get in my car and start it. idle is great nothing wrong with the car. as soon as i give it throttle and the car starts moving (5mph) i hear a noise as if i took like a metal poll and dragged it on the concrete. i poll over and check under the car and there was absolutely nothing, not even a little branch. i get back in the car and slowly gas it to get it moving again. again i hear the same noise from somewhere in the front of the car. front wheels and forward. i popped the hood to see if anything might be in there and everything seems normal. i close the hood back up and my car is fine doesn't make the noise every again. checked this morning and it's fine.

anyone have an idea of what it might be? should i be worried?

thank you for all your help

 

So you said idle is normal....how about when you rev it while parked? And the grinding's only when you start to roll?

One area you can check is the brakes (esp. the front where you said the sound if coming from).

Better yet, have a friend slowly drive the car for you while you asses the source from outside. Just walk along your car as he rolls it forward.

Of course, metal-to-metal sound is not a safe one to hear. Def. have it checked right away or risk grinding something away...not safe

 

disengage the ebrake before driving next time.

 

lol so true. good thing i dont take off fast so i notice when my ebreak is up...

but before i used to mess up customer's cars at work...

my dad did that before to the 240sx...and my friends wife did it to the pathfinder...lol the pathfinder was pretty bad since we traveled like 50 miles...metal to metal...red hot....

 

my ebrake was off