Mopar 5030023AA Engine Starter

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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 a malfunction occurs in the starting circuit, do not immediately assume that the starter is causing the problem. First, check the following items:Make sure the battery cable clamps, where they connect to the battery, are clean and tight.Check the condition of the battery cables. Replace any defective battery cables with new parts.Test the condition of the battery. If it does not pass all the tests, replace it with a new battery.Check the starter motor wiring and connections.Check the starter motor mounting bolts for tightness.Check the related fuses in the engine compartment fuse box. If they're blown, determine the cause and repair the circuit.Check the ignition switch circuit for correct operation.Check the starter relay.Check the operation of the Transmission Range (TR) sensor. This system must operate correctly to provide battery voltage to the starter solenoid. 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. If voltage is not available to the starter solenoid, check the fuses and starter relay in series with the starting system. If voltage is available but there is no movement from the starter motor, remove the starter from the engine and bench test the starter. If the starter turns over slowly, check the starter cranking voltage and the current draw from the battery. This test must be performed with the starter assembly on the engine. Crank the engine over (for 10 seconds or less) and observe the battery voltage. It should not drop below 9.6 volts. Also, observe the current draw with an ammeter (Use an inductive ammeter to measure starter current draw). Typically a starter should not exceed 160 amps. If the starter motor amperage draw is excessive, have it tested by a dealer service department or other qualified repair shop. There are several conditions that may affect the starter cranking potential. The battery must be in good condition and the battery cold-cranking rating must not be under-rated for the particular application. Be sure to check the battery specifications carefully. The battery terminals and cables must be clean and not corroded. Also, in cases of extreme cold temperatures, make sure the battery and/or engine block is warmed before performing the tests. If the starter is receiving voltage but does not activate, remove and check the starter motor assembly on the bench. Most likely the solenoid is defective. In some rare cases, the engine may be seized so be sure to try and rotate the crankshaft pulley before proceeding. With the starter assembly mounted in a vise on the bench, install one jumper cable from the positive terminal of a test battery to the B+ terminal on the starter. Install another jumper cable from the negative terminal of the battery to the body of the starter. Install a starter switch and apply battery voltage to the solenoid S terminal (for 10 seconds or less) and observe the solenoid plunger, shift lever and overrunning clutch extend and rotate the pinion drive. If the pinion drive extends but does not rotate, the solenoid is operating but the starter motor is defective. If there is no movement but the solenoid clicks, the solenoid and/or the starter motor is defective. If the solenoid plunger extends and rotates the pinion drive, the starter assembly is operating properly.