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f. Damaged overrunning clutch assembly (Figure 16). 4. Replace worn or damaged parts as required.
CHAPTER TWO
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Starter motor will not disengage after the start button is released 1. A sticking solenoid, caused by a worn solenoid compression spring (A, Figure 15), can cause this problem. Replace the solenoid if damaged. 2. On high-mileage vehicles, the pinion gear (A, Figure 12) can jam on a worn clutch ring gear (B, Figure 12). Unable to return, the starter will continue to run. This condition usually requires ring gear replacement. 3. Check the start switch and starter relay (Figure 11) for internal damage. Test the start switch as described under Switches in Chapter Eight. Test the starter relay as described in this chapter.
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Loud grinding noises when the starter motor turns Incorrect pinion gear and clutch ring gear engagement (Figure 12) or a broken overrunning clutch mechanism (Figure 16) can cause this problem. Remove and inspect the starter motor as described in Chapter Eight.
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Starter motor stalls or spins too slowly 1. Perform a voltage drop test between the battery and solenoid terminals as described under Voltage Drop Tests in this section. The normal voltage drop is less than 2 volts. Note the following: a. If the voltage drop is less than 2 volts, continue with Step 2. b. If the voltage drop exceeds 2 volts, check the solenoid and battery wires and connections for dirty or loose-fitting terminals; clean and repair as required. 2. Perform a voltage drop test between the solenoid terminals and the starter motor as described under Voltage Drop Tests in this section. The normal voltage drop is less than 2 volts. Note the following: a. If the voltage drop is less than 2 volts, continue with Step 3. b. If the voltage drop exceeds 2 volts, check the solenoid and starter motor wires and connec-
tions for dirty or loose-fitting terminals; clean and repair as required. 3. Perform a voltage drop test between the battery ground wire and the starter motor as described under Voltage Drop Tests in this section. The normal voltage drop is less than 0.2 volts. Note the following: a. If the voltage drop is less than 0.2 volts, continue with Step 4. b. If the voltage drop exceeds 0.2 volts, check the battery ground wire connections for dirty or loose-fitting terminals; clean and repair as required.