Mopar 68060346AA Ignition Coil

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To check the 3.7L V6 and 4.7L V8 engines, start by removing the ignition coil and cleaning the outer case for any damage. Clean the coil primary terminals and check for corrosion. Use an ohm-meter to measure the primary resistance across the two terminals of the connector. Compare the measurement to the specified range and replace the ignition coil if necessary. To check the secondary resistance, connect one ohm-meter lead to the positive terminal of the connector and the other lead to the high-tension terminal at the coil and the spark plug wire terminal. Compare the measurements to the specified range and replace the ignition coil if needed. If the resistance values are within range but the coil is still misfiring or causing trouble codes, try swapping it with an adjacent coil. If the issue persists, consult a professional. For the 3.6L V6 and HEMI engines, follow similar steps but note that for HEMI engines, it may be easier to check certain coils on the bench. Clean the outer case and terminals, measure the primary resistance, and swap coils if necessary. For replacement, remove the necessary components, disconnect the electrical connector, and remove the ignition coil. Install the new coil by reversing the removal steps.

Each coil should be inspected for cracks, damage, and carbon tracking.

Remove the engine cover and disconnect the electrical connector and spark plug wire boot for the companion cylinder. Remove the coil mounting bolts and carefully pull up with a twisting motion to disengage the rubber spark plug boots. Inspect the condition of the rubber spark plug boot and replace if necessary.

Remove the air intake duct or upper intake manifold, disconnect the electrical connector from the coil, remove the mounting screw, and pull off the coil.

If you find any damage on the coils, you should replace them.

When inspecting the coils, one should check for cracks, damage, and carbon tracking.

To remove these coils, you need to remove the upper intake manifold.

After cleaning the coils, you should inspect each one for cracks, damage, and carbon tracking.

Follow similar steps but check all eight ignition coils. Clean the outer case, primary terminals, and high-tension terminal for any damage or corrosion. Check the primary resistance and replace the coil if it is not within range. There is no published secondary resistance value, so if the primary resistance is within range but the coil is still causing issues, try swapping it with an adjacent coil. If the misfire DTC follows the coil, it is likely defective.

Start by removing the ignition coil and cleaning the outer case for any damage. Clean the coil primary terminals and check for corrosion. Use an ohm-meter to measure the primary resistance across the two terminals of the connector. Compare the measurement to the specified range and replace the ignition coil if necessary. To check the secondary resistance, connect one ohm-meter lead to the positive terminal of the connector and the other lead to the high-tension terminal at the coil and the spark plug wire terminal. Compare the measurements to the specified range and replace the ignition coil if needed. If the resistance values are within range but the coil is still misfiring or causing trouble codes, try swapping it with an adjacent coil. If the issue persists, consult a professional.

Start by removing the ignition coil and cleaning the outer case for any damage. Clean the coil primary terminals and check for corrosion on the coil tower terminal, cleaning it with a wire brush if necessary. Use an ohmmeter to measure the coil primary resistance by attaching the leads to the two terminals of the connector. Compare the measured resistance to the specified range and replace the ignition coil if it falls outside the range. To check the coil secondary resistance, connect one ohmmeter lead to the positive terminal of the connector and the other lead to the high-tension terminal. Compare the measured resistance to the specified range and replace the ignition coil if necessary. If the primary and secondary resistance values are within specification but the coil is still misfiring or causing trouble codes, try swapping it with an adjacent coil. If the issue persists, consult a professional for further testing.

Follow similar steps but note that for HEMI engines, it may be easier to check certain coils on the bench. Clean the outer case and terminals, measure the primary resistance, and swap coils if necessary. For replacement, remove the necessary components, disconnect the electrical connector, and remove the ignition coil. Install the new coil by reversing the removal steps.