Your car’s performance depends on precise control of air, fuel, and spark, and vacuum leaks quietly disrupt that balance. When unmetered air slips into the intake system, the engine computer receives ...

As your car gets older, it can begin to run, shall we say…poorly. And that’s even with keeping up with oil changes, cleaning the air filter, and throwing fresh plugs in it whenever you should. Part of ...

Have you ever inspected your vehicle's engine compartment and noticed that your engine has a couple of oil slicks on the ground next to it? A vacuum leak can be caused by just about anything from a ...

In my 35-plus years of working on cars, I have encountered nearly every frustrating troubleshooting problem in the book. Part of the issue stems from my affinity for old Jeeps and classic cars, which ...

One of the most difficult tuning problems to overcome is the seemingly ever-present engine vacuum leak. Vacuum is an important component of the internal-combustion process because it controls basic ...

We look at the most common problems to blight the second-generation R56 Mini models, and how to cure and prevent them in this buyer’s guide. BMW’s relaunch of the Mini brand has to be the perfect ...