How to change a 4.3l pickup coil

Written by russell wood
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How to change a 4.3l pickup coil
Replace your ignition coil. (Electric drill with a drill on a white background image by terex from

The ignition coil on a 4.3L GM engine translates the 12-volt power from the battery into the thousands of volts that the ignition system needs to work properly. When the coil goes out, so does the ignition and, in turn, the engine. Fixing the coil means replacing it, which can be done at home in about an hour, with the proper tools. In this case, the project vehicle is a 2001 Chevrolet S-10 with the 4.3L V6 engine, but the process is similar for other 4.3L V6 engines as well.

Skill level:

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Things you need

  • 3/8-inch ratchet and socket set
  • Drill
  • Metal drill bits
  • Replacement ignition coil kit
  • Open-end wrench set

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  1. 1

    Remove the air cleaner from the top of the engine using your hands to remove the wing nut. Lift the air cleaner off the engine and set it to the side. Locate the ignition coil, which is next to the distributor on the rear of the engine.

  2. 2

    Unplug the electrical connections from the ignition coil with your hands. Unbolt the bracket holding the bracket to the intake manifold using the 3/8-inch ratchet and socket. Lift the bracket off the engine and place it on a clean workspace. Drill out the rivets securing the coil to the bracket using the drill and metal drill bits, then pull the coil off the bracket.

  3. 3

    Bolt the replacement ignition coil to the bracket using the bolts in the kit, an open-end wrench and the ratchet. Bolt the bracket to the intake manifold using the 3/8-inch ratchet and socket. Reconnect the electrical connections using your hands, then reinstall the air cleaner.

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