An intake manifold leak can quietly drain your car’s power, fuel economy, and reliability. Knowing the symptoms, testing methods, and repair steps can save you costly shop bills. With the right tools ...

Diesel engines require on heated and compressed air to run efficiently. Glow plugs and intake heaters help make that happen, but how do they work?

Most new petrol cars you see today are equipped with fuel injection systems or injector motors. These have almost wholly supplanted older carburetor motors. They are more reliable, effective, and ...

A.Pressure "excursions" (variations in intake manifold mixture flow pressures) are shown here in a trace of pressure vs. time (or crankshaft angle) in only one runner of a single-plane manifold. Since ...