VT V6 engine shuddering??

[CV6Z]

hi all, ive noticed a noise comming from the engine bay when i start my car up (99 VT V6) as though its "blowing air out through a fan" so to speak. it only happens at low revs say up to 1000rpm then dissappears?? but also ive noticed the engine to shudder gently like it was out of fuel!! car has plenty of fuel so i dont think it'd be a fuel problem??

in saying that, last wednesday i copped a hole in the tank from what i assume was a small stone....could it have gone through the tank and fuel pick up line has sucked it up partially blocking the fuel line?

i dont know to much about these motor's so it's stumped me, the engine's done 382,000km but i havnt had a problem with it since ive owned it...


thoughts?

[nate-vy]

wouldnt be anything in your fuel lines as they are filtered check all your vacuum lines on the back of the plenum may be a leak or a hose off ? have you had a good listen to see if you can hear where abouts its coming from in the engine bay ?