How to Replace the Ignition Coil in a Chevy Silveradoby Contributor
When you start your Chevy Silverado, the ignition coil responds to the voltage from the battery and generates the spark necessary to kick start the spark plugs. A problem within the ignition coil may cause an oil leak or prevent your truck from starting.
Keep safe while you work on your truck. Not only should you set your emergency brake, you should also disconnect your negative battery cable. For added safety, isolate the cable, so it won't make an accidental connection.
Use masking tape to label the spark plug wires according to which terminal they connect to. Then, unplug the wires from the ignition coil.
Remove the screws securing the coil bracket to the intake manifold, using a small screwdriver or wrench.
Pull the Chevy Silverado ignition coil bracket away from the manifold. To separate the ignition coil from the bracket, remove the fasteners. In many cases, these will be rivets that you need to drill and punch out.
Replace the old ignition coil with a stock replacement or universal ignition coil. You might want to consider purchasing an ignition coil kit, which comes with mounting hardware. This is especially helpful if you had to drill and punch the rivets in order to access the ignition coil.
Put the pieces back together. As you tighten the retainers, make sure you only tighten until snug. Over-tightening may strip them.
- You may need to remove the air cleaner outlet resonator and nut to access the ignition coil on some models.
- Many current models of the Chevy Silverado use a distributorless ignition system, which may replace the ignition coil with a coil pack.
Items you will need
- Masking tape
- Screwdriver or small wrench
- Silverado ignition coil, specific to engine type