Cars are intricate machines that rely on a series of chemical and mechanical processes to work properly. When things go wrong with one of those processes, your car can start to make some strange ...

A few days ago, we published a report highlighting the valve lifter issues some General Motors customers were experiencing in certain vehicles equipped with either its 5.3L V8 L84 gasoline engine or 6 ...

Engine noise makes us more nervous than any other automotive sound because noise can mean expense and inconvenience. And, sometimes engine noise is nothing more than a normal dynamic of the engine's ...

My engine has developed a strange ticking sound. Its whisper-quiet before an oil change, and then makes a loud tapping after a new filter and fresh oil. This cycle has been going on for about 20,000 ...

If all the passenger-side lifters on a traditional Pontiac V8 engine are clattering but the driver-side lifters are quiet, the block is likely missing a critical oil galley plug. Pontiac V8s have an ...

GM Authority has received a growing number of emails and messages from General Motors pickup truck and SUV owners experiencing valve lifter problems. To note, the naturally aspirated 5.3L V8 L84 is ...