Exam 18: Starting and Motor Systems

A vehicle that has a low cranking RPM is being diagnosed. After checking the battery a cranking voltage test measures 9.1 volts at the starter solenoid terminal. What should be done next?

The function of the overrunning clutch in the starter drive is to _____.

If a ground circuit test reveals a voltage drop of more than 0.2 volt, the problem may be a ______.

Cranking problems may occur if oversize battery cables are installed.

If the wrong weight motor oil is used, an engine may crank very slowly or may not start in cold weather.

How does the design of a permanent magnet starting motor differ from one designed with electromagnets?

Technician A says the starter solenoid mounts directly on top of the starter motor. Technician B says the starter solenoid pushes the starter drive pinion into mesh with the flywheel teeth. Who is correct?

Positive engagement or movable pole shoe type starters are normally found on older vehicles built by _____.

Describe how to perform a cranking voltage test.

What device pushes the starter pinion gear into mesh with the ring gear when the ignition switch is in the start position?

The maximum voltage drop for the insulated circuit (battery positive to starter solenoid)is typically about _____ volt.

A vehicle is being diagnosed for a "no crank" problem. When the ignition switch is turned to the start position, a clicking [buzzing] noise is heard at the starter but the engine does not crank over. Technician A says the problem could be a weak battery. Technician B says the problem could be an open in the hold-in winding. Who is correct?

When a cranking voltage test is performed, the ignition system must be disabled.

The starter drive ____________________ gear teeth mesh with the flywheel ring gear teeth.

Which of the following would NOT cause excessive current draw by the starter motor?

The starting system has two separate electrical circuits: the starter circuit and the ____________________ circuit.

When the starter spins but does NOT crank the engine, which of the following may be a cause?

The device that prevents the engine from turning the armature of the starter motor is the ______.

Poor or incomplete diagnosis accounts for the fact that nearly 80 percent of starters returned as defective on warranty claims work perfectly when tested.

On a vehicle equipped with a starter relay, there are two positive battery cables. One connects the battery positive battery terminal to the relay. The second cable connects the battery to the ____________________ terminal.