I when on a trip to Houston this last Friday night and I came back last night. So today I wake up and went to buy some groceries and I start feeling my car acting weird, like he want to shut off and like missing a spark plug or so. The check engine light came on and anytime the I stop in a traffic light or stop sign the engine shut off. The car only have 56,000 miles, it have extended warranty and last week I service the car with new synthetic oil Penzoil 5w-30 and the tech doesn't find nothing wrong with the car. Aside that, the engine sound like all the lifters are bad, sounds like a old diesel car. Any help it will be appreciate thanks...