Jeep R6044736AC Starter Motor

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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.

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.

Remove the nut that secures the battery cable to the terminal stud on the starter solenoid, disconnect the cable from the terminal stud and disconnect the electrical connector from the spade terminal on the solenoid. Remove the two starter mounting bolts. Move the starter motor toward the front of the vehicle until the nose of the starter pinion housing clears the transmission bellhousing, then lift the nose down and, if you haven't already done so, lower the starter until you can disconnect the electrical connector and remove the nut that secures the battery cable to the terminal stud on the starter solenoid. Once everything is disconnected, remove the starter. Caution: The starter motor is fairly heavy, so be sure to support it while removing it. Do NOT allow it to hang by the wiring harness.

If the starter does not activate when the ignition switch is turned to the start position, check for battery voltage to the starter solenoid. This will determine if the solenoid is receiving the correct voltage from the ignition switch. Connect a 12-volt test light or a voltmeter to the starter solenoid positive terminal. While an assistant turns the ignition switch to the start position, observe the test light or voltmeter. The test light should shine brightly or battery voltage should be indicated on the voltmeter.

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.