Conequence: A delay in the
application of the brake
pedal would lengthen the distance
needed to stop the vehicle and increase the risk of a crash.
Here are some of the gauges you might find: available brake air pressure, usually a dual gauge — one for each system; brake
application pressure — how much air pressure is appled to the brakes as you press the
pedal; your typical fuel level, oil pressure, ammeter and water temp gauges; turbocharger boost PSI — up to about 30 PSI is used; transmission, engine and differential oil temperatures; and gauges that show the drop in pressure across the fuel and air filters so you know when they
need replacement.