One of our customers was driving a Hyundai Sonata when it turned off. The battery light, check engine light, and oil light came on. Oil was added and the car started to shake and cut off again.
We recommended replacing the battery, which failed the battery test. The oil was twice the OE amount, so it needed to be drained and refilled.
There was a history of misfire codes on a couple of cylinders and a pending code for random misfire. We removed the spark plugs and found carbon build up on them. We suggested new spark plugs and a fuel induction service.














