ASE certification study guide With Complete Solution

Spark plugs are being replaced on a v6 engine. Which of the following should be performed before removing the boot? -Answer Twist the boot 1/2 a turn Technician A days that a positive crankcase ventilation (pvc) system reduces vehicle emissions. Tech B says that a pvc system helps increase crankcase pressure. Who is correct? -Answer Tech A Tech A says that secondary ignition wires should be inspected when replacing spark plugs. Tech B says that if a new spark plug is dropped it can be used as long as the gap doesn't change. Who is correct? -Answer Tech A Incorrect valve timing could be caused by... -Answer Incorrect timing belt position When measuring parallelism of a disc brake rotor, A technician measures 0.002" variation beyond the specification. The next step is to? -Answer Determine the minimum rotor machine to thickness Tech A says that disconnecting the negative battery cable may be required to disable the air bag system. Tech B says that a self powered test light can be used to test air bag system components. Who is correct? -Answer Tech A only A vehicles battery prematurely fails. A charging system output test shows the alternator is producing a constant 16.0 volts. This could indicate a failed... -Answer Voltage regulator A dirty cabin air filter can cause... -Answer A musty smelling cabin Define the term stroke -Answer Distance the piston travels from TDC (top dead center) to BDC (bottom dead center) A vehicle is being checked for power steering leaks Technician A says that leaks can develop in the fitting hoses and seals, Technician B says that the steering components should be observed for leaks while a helper turns the steering wheel from side to side. Who is right? -Answer Both Brake fluid must meet minimum standards set by... -Answer Department of traffic (DOT) A flexible rubber brake line is being inspected. Technician A says small blisters in the rubber are acceptable if they are not leaking. Technician B says that small cracks in the rubber require replacement of the hose. Who is correct? -Answer Technician B only