Is changing a coil pack big job?

Changing a coil pack is generally considered a moderate-level job, depending on the vehicle. It often involves removing some components to access the coil pack, but it typically doesn't require specialized tools or extensive mechanical knowledge. For many cars, it can be done in under an hour, making it a manageable task for DIY enthusiasts or a straightforward job for a mechanic. Always consult your vehicle's service manual for specific instructions.