Mopar 4762312 Ignition Coil

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Disconnect the battery's negative cable. Remove the distributor cap, rotor, and pick-up coil leads. Use an ohmmeter to test the pick-up coil's resistance; it should show infinite resistance. If not, replace the coil. Test the coil's terminals; the ohmmeter should read between 500 and 1500 ohms. If not, replace the coil. Remove the distributor and rotor. Disconnect the coil leads. Remove the Hall-effect switch if present. Mark the distributor gear and shaft for reassembly. Remove the roll pin, gear, and washers from the shaft. Remove the shaft and pick-up coil. Reinstall in reverse order, using a new roll pin.

To check and replace the ignition coil on models except for 2000 and later inline six-cylinder models, follow these steps:a. Start by detaching the negative battery cable.b. Locate the ignition coil, typically found on the right side of the engine compartment.c. If needed, remove the coil by unscrewing the mounting bracket bolts.d. If the coil is not removed, disconnect the wires from the high voltage and primary terminals of the coil.e. Use an ohmmeter set on the high resistance scale to perform resistance tests.f. Test the primary terminal to ground, which should indicate infinite resistance.g. Test the positive primary terminal to the negative terminal, which should indicate zero or close to zero resistance.h. Test the negative primary terminal to the high voltage terminal, which should not indicate infinite resistance.i. Replace the coil if any of these tests fail.j. For replacement,if not. f. Note that the entire assembly must be replaced if only one coil is defective. g. For replacement, remove the ignition coil rail assembly mounting bolts, carefully work the spark plug boots off the spark plugs, and disconnect the electrical connector from the coil rail. h. Then, remove the ignition coil rail assembly, and when installing the new one, make sure all spark plug boots are properly seated over the spark plugs. i. Secure the assembly with the mounting bolts, reconnect the electrical connector, and ensure it's locked in place.

To replace the ignition coil on 2000 through 2006 six-cylinder models, remove the ignition coil rail assembly and clean the cases. Check the coil primary resistance by connecting an ohmmeter to the coil connector terminals. Compare the measurements to the specified resistance values. If the resistance is not as specified, replace the coil rail assembly. To replace the assembly, remove the mounting bolts and carefully work the spark plug boots off the spark plugs. Disconnect the electrical connector and remove the coil rail assembly. When installing the new coil rail, position the spark plug boots over the spark plugs and press the assembly down until the boots are seated. Install the mounting bolts and tighten them securely. Connect the electrical connector and lock it in place.

Install the rotor and the distributor cap.