Locate the ignition coils: They are located on top of the engine, secured to the cylinder head.
Disconnect the electrical connectors: Unplug the electrical connectors that are attached to each ignition coil.
Remove the bolts holding the ignition coils: There are two bolts securing each coil. Use a wrench to remove these bolts.
Remove the old coils: Once the bolts are removed, you can lift off the old ignition coils.
Install the new ignition coils: Place the new ignition coils into their respective positions and screw in the bolts.
Reconnect the electrical connectors: Plug back the electrical connectors that you disconnected earlier.
The total cost of having this done by a mechanic can vary depending on the labor rates in your area. On average, it can cost between $250 and $450 to replace all six ignition coils on a 1999 Maxima GLE.
