Mopar 68049020AA Engine Starter

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When a malfunction occurs in the starting circuit, it is essential not to assume the starter is the issue right away. Start by checking the cleanliness and tightness of the battery cable clamps at the battery connection. Inspect the battery cables for any defects and replace them if necessary. Test the battery's condition, and if it fails the tests, replace it with a new one. Examine the starter motor wiring and connections, ensuring the mounting bolts are tight. Check the related fuses in the engine compartment fuse box and inspect the ignition switch circuit. Verify the operation of the clutch pedal position switch or the Transmission Range (TR) sensor, as they provide voltage to the starter solenoid. If the starter does not activate when turning the ignition switch to the start position, check for battery voltage at the starter solenoid to confirm proper voltage from the ignition switch. If voltage is absent, refer to the wiring diagrams and inspect the fuses and starter relay. If voltage is present but the starter does not move, remove the starter from the engine and bench test it. If the starter turns over slowly, check the starter cranking voltage and current draw from the battery while observing the battery voltage and the current draw with an ammeter. If the starter motor amperage draw is excessive, have it tested by a qualified repair shop. Ensure the battery and cables are in good condition, and in extreme cold temperatures, warm the battery and engine block before testing. If the starter receives voltage but does not activate, remove and bench test the starter motor assembly, checking the solenoid's functionality. If the pinion drive extends but does not rotate, the solenoid is operational but the starter motor is defective. If there is no movement but the solenoid clicks, both the solenoid and starter motor may be defective. If the solenoid plunger extends and rotates the pinion drive, the starter assembly is functioning correctly.

Begin by disconnecting the cable(s) from the negative battery terminal(s). Raise the vehicle and support it securely on jackstands. On certain models with 4WD and specific transmissions, there may be a support bracket blocking access to the lower starter mounting bolt. If present, remove the support bracket bolts and pry it aside. Remove the heat shield, if equipped, from the starter motor. Next, remove the nut securing the battery cable to the terminal stud on the starter solenoid and disconnect the cable from the terminal stud. Disconnect the electrical connector from the spade terminal on the solenoid. On models with a manual transmission, remove the starter mounting bolt and nut. On models with an automatic transmission, remove the two starter mounting bolts. Move the starter motor towards the front of the vehicle until the nose of the starter pinion housing clears the transmission bellhousing. Tilt the nose down and lower the starter to access the wiring connectors more easily. Finally, disconnect the battery cable and electrical connector from the terminals on the starter motor solenoid and remove the starter. For HEMI engines, follow a similar process, but also remove the two starter motor mounting bolts. For diesel engines, disconnect the wiring harness and battery cable from the starter, remove the three starter mounting bolts, and then remove the starter.

Check for battery voltage at the starter solenoid to confirm proper voltage from the ignition switch. If voltage is absent, refer to the wiring diagrams and inspect the fuses and starter relay. If voltage is present but the starter does not move, remove the starter from the engine and bench test it.

To disconnect the starter motor, begin by disconnecting the cable(s) from the negative battery terminal(s). Then, raise the vehicle and support it securely on jackstands. On certain models with 4WD and specific transmissions, there may be a support bracket blocking access to the lower starter mounting bolt. If present, remove the support bracket bolts and pry it aside. Remove the heat shield, if equipped, from the starter motor. Next, remove the nut securing the battery cable to the terminal stud on the starter solenoid and disconnect the cable from the terminal stud. Disconnect the electrical connector from the spade terminal on the solenoid. On models with a manual transmission, remove the starter mounting bolt and nut. On models with an automatic transmission, remove the two starter mounting bolts. Move the starter motor towards the front of the vehicle until the nose of the starter pinion housing clears the transmission bellhousing. Tilt the nose down and lower the starter to access the wiring connectors more easily. Finally, disconnect the battery cable and electrical connector from the terminals on the starter motor solenoid and remove the starter. For HEMI engines, follow a similar process, but also remove the two starter motor mounting bolts. For diesel engines, disconnect the wiring harness and battery cable from the starter, remove the three starter mounting bolts, and then remove the starter. Installation is the reverse of removal for all engine types.