A vehicle with multiport fuel injection only starts with the throttle held open. A review of the vehicle history indicates that although the vehicle has 75,000 miles on it, the engine has never been serviced ex-cept for an occasional oil change. The MFI system uses an Idle Air Control Valve to regulate closed throt-tle rpm. Technician A says that the IAC valve may be stuck in the fully extended position. Technician B says that the problem may be the result of a clogged fuel filter. Who is right?
Technician A says excessive pressure in the torque converter will cause a torque converter to balloon. Technician B damage to the pump can be the result of a ballooned torque converter. Who is correct?
Two technicians are discussing electronic leveling systems. Technician A says that a weight should be placed in the vehicle as part of the diagnostic procedure. Technician B says that many ride height sensors are adjustable. Which technician is correct?
Technician A says that polyolefin plastics are all thermoset plastics. Technician B says that polyolefin plastics are all thermoplastic plastics. Who is correct?
Technician A says that hot rolled steel is steel manufactured and rolled with very hot rollers. Technician B says that hot rolling is the process of rolling steel while it is still hot from manufacturing. Who is correct?
Technician Asays voltage will not exist between any two points in a circuit if the potential is zero. Technician B says corrosion is NOT a contributing factor to voltage drop. Who is correct?
Technician A says that a voltage drop test of the charging circuit should only be performed when current is flowing through the circuit. Technician B says to connect the leads of a voltmeter to the positive and negative terminals of the battery to measure the voltage drop of the charging system. Who is right?
Technician A says that incandescent trouble lights may be used when working around gasoline. Technician B says that florescent trouble lights should be used when working around gasoline. Which technician is correct?
During a road test on a front-wheel drive vehicle, it is determined that the vehicle pulls right after a right turn, and pulls left after a left turn. The most likely cause of this condition is:
The part that is MOST-Likely used to prevent the front brakes from applying until the rear drum brake shoes overcome return spring pressure and contact the brake drums is the:
The intake valve opens at 39° BTDC (before top dead center) and closes at 71° ABDC (After bottom dead center). The exhaust valve opens at 78° BBDC (before bottom dead center) and closes at 47° ATDC (after top dead center). Which of these is correct regarding this cam timing?
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