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

It funnels exhaust gases from all the cylinders and routes them to the car’s catalytic converter. V-type engines have a separate manifold for each cylinder bank. A leak in the exhaust manifold ...

Unlike a mechanical failure, carbon monoxide poisoning can go unnoticed until it is too late. Here are some ways to recognize ...

“Investigators believe there is no criminal element involved in the deaths as initial findings suggest accidental exhaust fume inhalation ... caused by a petrol leak in the car’s engine ...

Gotcha! With this system, we found a couple of leaks in an intake manifold in five minutes even though we had no idea where to start. It's also good for finding exhaust leaks, as an exhaust leak ...