so my car had a bad vacume leak a couple days ago and my car was running like a washing machine, so i thought i found the problem and there was a cracked end to the vascume hose that goes to the td. so replaced it, it ran very well for the last 2 days but now its acting up again but not as bad. now i have to let the car warm up and rev it a few times to get it back to smooth running conditions. any help because i checked all the hoses and they seem fine. could it be something else? i just put headers in and i have a exhast leak after the cat, and i have a 01 gp gt, just to let u know whats up with it. so any help?