Jeep T1031135 Ignition Coil Ignition

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To replace the ignition coil on most models, disconnect the negative battery cable and locate the ignition coil. If necessary, unscrew the mounting bracket bolts to remove the coil. Disconnect the wires from the coil's terminals. Use an ohmmeter to test the resistance at the primary terminal and ground, the positive and negative primary terminals, and the negative primary and high voltage terminals. If any tests fail, replace the coil. To do so, disconnect the wires from the coil's terminals, remove the mounting bracket bolts and the coil. Install the new coil in reverse order. For 2000 and later inline six-cylinder models, remove and clean the ignition coil rail assembly. Check for damage and test the coil primary resistance at terminals 2 and 1, 2 and 3, and 2 and If the resistance is out of range or if there's damage, replace the entire assembly. To replace, remove the assembly, disconnect the electrical connector, and install the new assembly, ensuring all spark plug boots are properly seated. Secure with mounting bolts and reconnect the electrical connector.

Remove the gear and washers from the shaft.

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.

Support the shaft while installing the trigger wheel pin.