How to Replace Ignition Coil 10-16 GMC Terrain

Difficulty: Intermediate · About 20 min · Gmc Terrain

Replace an ignition coil, including removing the engine cover for access, on a 2010-2016 GMC Terrain.

Steps

1. Access the ignition coils

   Disconnect the small hose from the air intake box, loosen the upper and lower hose clamps with a flat blade screwdriver, remove the oil fill cap, pull the engine cover up and off, then put the cap back on.

2. Remove the old ignition coil

   Push back the white clip on the coil's wiring harness and disconnect it, remove its 10mm bolt, then pull it out by hand.

3. Install the new ignition coil

   Push it in by hand, insert its 10mm bolt, reconnect the wiring harness, then push its white clip back in — repeat for the other coils as needed.

4. Reinstall the engine cover

   Remove the oil fill cap, set the cover on lining up its three pins, push the air intake box onto its two tabs, push the hoses into it, tighten the hose clamps with a flat blade screwdriver, then push the smaller hose into the box.

Check your vehicle’s repair manual for exact specifications and fit.