well lately with my intrepid ive noticed ive had problems starting it...it takes a lot longer to start then usual...and sounds like it just barely turns over...and will also stall out right after it starts...or within the first few minutes of driving, this happens part of the time...when i do get it to start, and i let it warm up...it sounds like a harley davidson or something...but after i let it run for 10 mins...it sounds normal....anyone had this problem or know what it could be?