ASE PS2 Test Preparation Guide: Electrical System
The major components in the electrical system include the battery, starter and alternator. Also included are the battery cables, relays, fuses and bulbs.
ASE PS2 Test Preparation Guide: Emission Control Systems
Emission control systems include the engine management system (PCM and sensors), Positive Crankcase Ventilation (PCV) system, Exhaust Gas Recirculation (EGR), the Evaporative Emission Control System (EVAP) and catalytic converter.
ASE PS2 Test Preparation Guide: Engine Mechanical Parts
Major engine components include the block, crankshaft, main and rod bearings, connecting rods, pistons and rings, oil pump, camshaft, lifters or followers, pushrods, valves, springs, retainers, rocker arms, valve guides, seals and seats, and timing gears, timing chain or timing belt.
ASE PS2 Test Preparation Guide: Exhaust System
The major components in the exhaust system include the exhaust manifold, head pipe, Y-pipe (if used), exhaust pipe, crossover pipe, tailpipe, muffler, resonator, catalytic converter, clamps, hangars and heat shields.
ASE PS2 Test Preparation Guide: Fuel System
The major components in the fuel system include the fuel pump, fuel filter, fuel lines, fuel injectors, fuel pressure regulator, throttle body, fuel tank and gas cap.
ASE PS2 Test Preparation Guide: Ignition System
The major components in the ignition system include the spark plugs, spark plug wires (if used), ignition coil(s), ignition module (if used), an ignition pickup (in a distributor) or a crankshaft position sensor, and on older engines, a distributor.
ASE PS2 Test Preparation Guide: Manual Transmission/Transaxle
The major components in a manual transmission or transaxle include the clutch, release bearing, pilot bearing (if used), clutch linkage (hydraulic or cable), gearbox and shift linkage.
ASE PS2 Test Preparation Guide: Steering & Suspension
The major components in the steering include the steering gear (rack & pinion or recirculating ball), power steering pump and hoses (if used), tie rods and tie rod ends, idler arm and center link (if used) and steering stabilizer (if used). The major components in the suspension include springs, shock absorbers and/or struts, control arms and bushings, ball joints, and sway bar and bushings.
Diagnosing an Engine that Won’t Start
In today’s world of high-tech electronics, onboard diagnostics and scan tools, you would think engine diagnostics would be easier than ever.
Engine Failures And How To Deal With Them
Because customers depend upon their parts professionals for guidance in repairing modern engines, let’s take a look at what parts and services you should recommend in dealing with each of these relatively expensive repairs.