Mopar 4801256AC Engine Starter

You can Select Your Vehicle to check if 4801256AC fits your vehicle.

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 and replace any defective ones with new parts; Test the condition of the battery, and 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 and 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 as 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. If voltage is not available to the starter solenoid, check the fuses and starter relay in series with the starting system. If the starter turns over slowly, check the starter cranking voltage and the current draw from the battery. There are several conditions that may affect the starter cranking potential such as battery condition, terminal and cable cleanliness, and extreme cold temperatures. If the starter is receiving voltage but does not activate, remove and check the starter motor assembly on the bench. 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 jumper cables from a test battery to the starter and observe the solenoid plunger, shift lever and overrunning clutch. 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.

Disconnect the cable from the negative terminal of the battery. Raise the vehicle and support it securely on jackstands. On 4WD models with certain transmissions, there's a support bracket between the front axle and the side of the transmission that blocks access to the lower starter mounting bolt. If your vehicle has this support bracket, remove the two support bracket bolts at the transmission, then pry the support bracket aside enough to gain access to the lower starter mounting bolt. Additionally, on some 4WD models the driveshaft will have to be detached from the front differential companion flange for access to the starter mounting bolts. Remove the heat shield, if equipped, from the starter motor. 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 bell housing then tilt 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. 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. Installation is the reverse of removal. Loosen the lug nuts on the right front wheel. Raise the vehicle and place it securely on jackstands. Remove the right front wheel. Remove the splash shield from the right front wheel housing. On some 4WD models with certain transmissions, there's a support bracket between the front axle and the side of the transmission that blocks access to the lower starter mounting bolt. If your vehicle has this support bracket, remove the two support bracket bolts at the transmission, then pry the support bracket aside enough to gain access to the lower starter mounting bolt. Disconnect the battery cable and electrical connector from the terminals on the starter motor solenoid. Remove the two starter motor mounting bolts and remove the starter motor assembly. Installation is the reverse of removal.