[trustymatt]

This sounds like what was happening to me. I changed fuel filter it is located on passenger side towards back under back door. It didnt work but cheap try. Replaced spark plugs and wires (thought i had a misfire). Tried fuel injector cleaning. All cheap attempts. Most recently I had an idler pulley break on the timing belt. Replaced that and reset the timing and havent seemed to have any trouble since. Its only been three days since i did that but its running like a champ. Pulley ran $60 at dealership. You can get both idlers and tensioners for 120 at Autozone.