Some 2005-09 GX470 and 2006-07 LX470 SUVs may illuminate the check engine light and store one or more of the following air injection system trouble codes in the PCM: P0412, P0418, P1440/P1443, ...

Q:Over the last several months I have acquired numerous questions regarding smog systems, including how smog systems work, vehicle application, interpreting date codes, rebuilding your own system, how ...

Most operators know that air should be kept out of a heat exchanger’s cooling water supply line. Air can collect in pockets and block flow, increasing velocities, increasing system resistance, ...

Q:I am a first-time Corvette owner and have recently subscribed to the magazine. Being a hands-on owner, I love all of the how-to articles the magazine has to offer. I am the proud owner of a C5 ...

The diesel industry uses two basic styles of mechanical injection pumps: the inline and rotary. In most applications, the inline pumps are attached to inline engines (due to packaging), while the ...