Do it yourself, change the ignition coils on your Toyota Camry manufactured between the years 1997 and 2001. In order to make this replacement you will require new ignition coils from your favourite auto parts shop and a 10 mm wrench. The process is simple and it will probably take you about 20 minutes.
In the start of the repair, after you open the hood, search on the passenger’s side of the engine and locate the two ignition coils (see the picture below showing the two coil packs). Although this car has a four cylinder engine, it has only two ignition coils. That’s because each coil pack is responsible for firing two cylinders.
Removal is quite similar for both. Just pull up and disconnect the spark plug wires located above each coil, disconnect the electrical harness at the bottom and, using a 10 mm wrench, loosen up the two bolts that secure each coil. Remove them by hand after you loosen them a little bit, if you find it easier. One of the bolts is marked with the red circle, the spark plug wires with yellow arrows and the electrical connector with blue arrows, in the image below.
Remove the two coil packs and install the replacements. Secure them with the 10 mm bolts and connect their harnesses and in the end reinstall the spark plug wires above. This is all you need to do in order to change the ignition coils on your Toyota Camry manufactured between the years 1997 and 2001.