Popular Mechanics’s automotive experts outline the tools and techniques proven to smoke out even the toughest to find vacuum ...

This will melt the rubber and can eventually snap it. Below, we’ve rounded up all the various items that might be tempting to ...

The ducting between the throttle body and the MAF sensor is often 3-inch-diameter rubber that can also degrade and develop leaks. A leak in this duct isn't technically a vacuum leak—it's a ...