Mopar 5149168AI Electrical Ignition Coil

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To check the 3.6L V6, 3.7L V6, and 4.7L VB engines' ignition coils, remove and clean the coil and use an ohmmeter to measure the coil's primary and secondary resistance and compare it to the specified range. If the primary resistance is within range but issues persist, try swapping the coil with an adjacent one. For Hemi engines, follow similar steps but also clean the coil primary terminals and check for corrosion on the high-tension terminal.

Installation is the reverse of removal. Tighten the ignition coil bolts securely.

For an earlier type coil on the fenderwell, disconnect the primary wires and high-tension cable, and remove the mounting bracket bolts. If the coil is bad, loosen the clamp pinch screw and transfer the clamp/mounting bracket to the new coil.

Remove the distributor cap and rotor.

To replace the ignition coil on 1999 and earlier models, start by detaching the cable from the negative battery terminal. Mark the wires and terminals with numbered tape, then remove the primary wires and high-tension cable from the coil. Disconnect the coil mounting bracket and remove the coil/bracket assembly. Clean the outer case and check for damage. Clean the coil primary terminals and check for corrosion. Check the coil primary resistance by attaching an ohmmeter to the positive and negative terminals. Check the coil secondary resistance by hooking one ohmmeter lead to the primary terminals and the other to the high-tension terminal. If the resistances are not as specified, replace the coil. Install the new coil and hook up the wires, then reattach the cable to the negative battery terminal.