Mercury F7PZ-12029-AA Coil Assembly - Ignition

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Before replacing ignition components, check for Federally mandated extended warranty eligibility. Be aware that disconnecting the battery may affect the Powertrain Control Module (PCM).To replace the Duraspark ignition coil, disconnect the negative battery cable, mark coil wires, remove high-tension lead and coil connections, and remove coil bracket bolts. Install a new coil with silicone grease inside the high-tension lead boot.To replace the Duraspark ignition module, disconnect the negative battery cable, unplug module connectors, remove mounting screws, and install the new module.For the Duraspark stator assembly, remove negative battery cable, distributor components, armature, E-clip, ground strap screw, wire retaining clip, and stator assembly. Clean and reinstall the lower plate assembly, stator assembly, armature, and other components.For V6 engines, similar steps apply, but include additional steps to remove the lower plate assembly and stator assembly.For the TFI-IV ignition coil, locate coil assembly, unplug the connector and wire, remove screws, detach coil, and install new coil with silicone dielectric grease in the coil-to-distributor lead boot.To replace the TFI-IV ignition control module, follow the specified steps for removal and installation. Apply silicone dielectric grease to the module's back.For TFI-IV or DI distributor stator replacement, remove distributor cap and wires, follow steps for stator assembly removal and installation. Check for wear and replace faulty parts.

Before replacing ignition components, check for Federally mandated extended warranty eligibility. Be aware that disconnecting the battery may affect the Powertrain Control Module (PCM).To replace the Duraspark ignition coil, disconnect the negative battery cable, mark coil wires, remove high-tension lead and coil connections, and remove coil bracket bolts. Install a new coil with silicone grease inside the high-tension lead boot.To replace the Duraspark ignition module, disconnect the negative battery cable, unplug module connectors, remove mounting screws, and install the new module.For the Duraspark stator assembly, remove negative battery cable, distributor components, armature, E-clip, ground strap screw, wire retaining clip, and stator assembly. Clean and reinstall the lower plate assembly, stator assembly, armature, and other components.For V6 engines, similar steps apply, but include additional steps to remove the lower plate assembly and stator assembly.For the TFI-IV ignition coil, locate coil assembly, unplug the connector and wire, remove screws, detach coil, and install new coil with silicone dielectric grease in the coil-to-distributor lead boot.To replace the TFI-IV ignition control module, follow the specified steps for removal and installation. Apply silicone dielectric grease to the module's back.For TFI-IV or DI distributor stator replacement, remove distributor cap and wires, follow steps for stator assembly removal and installation. Check for wear and replace faulty parts.

Mark wires and terminals with numbered tape for breaker points ignition systems. Remove primary wires and high-tension wire from the coil, then remove and clean the coil assembly. Check for cracks or damage and clean any corrosion. Use an ohmmeter to check coil primary and secondary resistance, replacing the coil if resistances don't match specifications. Reinstall the coil and reconnect wires. For breakerless systems, disconnect wires and measure resistance across coil primary terminals, replacing the coil if necessary. For EDIS systems, disconnect electrical connectors from the coil and check resistance between coil primary terminal and outer terminal. Replace the coil if resistances don't match specifications. To replace the coil, disconnect the negative cable from the battery and ignition coil electrical connectors, remove the bolts securing the ignition coil, and install the new coil.

Start by disconnecting the electrical connector(s) from the coil. Use an ohmmeter to check the resistance between the coil primary terminal and the outer terminal. The resistance should match the specifications. Then, connect the ohmmeter between the secondary terminals of each coil pack and check the resistance. If the resistances are not as specified, replace the coil.

Start by disconnecting the cable from the negative terminal of the battery. Then, detach the electrical connectors from the coil, which is located near the air cleaner assembly. Next, remove the bolts that mount the coil bracket to the fender and remove the coil and bracket. Finally, remove the coil-to-bracket mounting bolts.

For installation, simply reverse the removal steps.

To replace the coil in the EDIS system, start by disconnecting the negative cable from the battery. Then, disconnect the ignition coil electrical connectors from each individual coil pack and disconnect the ignition wires. Remove the bolts securing the ignition coil and install the new coil following the reverse of the removal procedure.