Learn Short Block and Long Block
Automotive
Advertisement Short Block and Long Block The cylinder block assembly (without the heads installed) is called a short block.  The short block includes the crankshaft, piston and rod assembly, and ball bearings.  On pushrod engines, the camshaft, timing sprockets, and …
Automotive Audio System Operation and Diagnosis
Automotive
Advertisement Diagnosis and Troubleshooting of Automotive Electrical, Electronic, and Computer Systems AUDIO FUNDAMENTALS Introduction Audio systems produce audible sounds and include the following: Radio (AM, FM, and satellite) Antenna systems that are used to capture electronic energy broadcast to radios …
A Vane Air flow (VAF) Sensor
Automotive
Advertisement A vane air flow (VAF) sensor. Typical air vane sensor with the cover removed. The movable arm contacts a carbon resistance path as the vane opens.  Many air vane sensors also have contacts that close to supply voltage to …
Brake Pedal Pulsation Causes
Automotive
Advertisement Vehicles will frequently come into your shop with a complaint of pedal pulsation. Oftentimes, the cause of the pedal pulsation is diagnosed as a warped rotor.  This diagnosis is wrong. The rotor rarely, if ever, warps. Pedal pulsation is …