A Vacuum Leak is when there’s a leak somewhere in the engine, allowing unmetered air to enter the intake manifold.
The most common symptoms of a vacuum leak include. An illuminated check engine light, rough running, stalling, increased engine idle (RPM), and a hissing noise from the engine.

Vacuum Leak Repair – Common Locations To Leak And Causes
Having to do a vacuum leak repair, is more common than you would think. Quite often a vacuum leak, will disguise itself, as an ignition or fuel problem, that is incorrectly diagnosed. Above all, an […]