Your car’s performance depends on precise control of air, fuel, and spark, and vacuum leaks quietly disrupt that balance.

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 ...

In this video, I demonstrate how to locate vacuum and evap leaks using the Autoline Pro Shop Series smoke machine, which features a built-in regulator for safe evap system testing. Smoke machines can ...

Heat treatment is a common procedure used across multiple industries, for example with the purpose of hardening metals. However, when heat is applied in a furnace, products may react with the oxygen ...