Chevrolet 30026097 Motor Asm,Starting (On Esn)

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Before diagnosing starter problems, ensure that the battery is fully charged. If the starter motor does not turn when the switch is operated, check that the shift lever is in Neutral or Park (automatic transmission) or the clutch pedal is depressed (manual transmission). Additionally, make sure the battery is charged and all cables, both at the battery and starter solenoid terminals, are clean and secure. If the starter motor spins but the engine does not crank, the overrunning clutch in the starter motor may be slipping and the starter motor will need to be replaced. If the solenoid clicks but the starter motor does not operate, the issue may lie with the battery, main solenoid contacts, starter motor itself, or a seized engine. If the solenoid plunger cannot be heard when the switch is actuated, it could indicate a bad battery, burned fusible link, or defective solenoid. To check the solenoid, connect a jumper lead between the battery (+) and the ignition switch wire terminal on the solenoid. If the starter motor operates with the jumper lead, the solenoid is fine and the problem may be with the ignition switch, neutral start switch, or wiring. If the starter motor still does not operate, it may be necessary to remove the starter/solenoid assembly for disassembly, testing, and repair. If the starter motor cranks the engine at a slow speed, ensure that the battery is charged and all terminal connections are tight. If the engine is partially seized or has the wrong viscosity oil, it may crank slowly. To test the starter motor, run the engine until it reaches normal operating temperature, then disconnect the coil wire from the distributor cap and ground it on the engine. Connect a voltmeter positive lead to the positive battery post and the negative lead to the negative post. Crank the engine and take voltmeter readings as soon as a steady figure is indicated, making sure not to allow the starter motor to turn for more than 15 seconds at a time. A reading of 9 volts or more, with the starter motor turning at normal cranking speed, is considered normal. If the reading is 9 volts or more but the cranking speed is slow, the motor is faulty. If the reading is less than 9 volts and the cranking speed is slow, it may indicate burned solenoid contacts, a bad starter motor, a discharged battery, or a bad connection.

Start by detaching the cable from the negative terminal of the battery.