Tomorrow morning my DTS is going into the shop to have the #3 fuel injector changed. Now I'm not ignorant, but far from a certifieds mechanic lol, so my question is quite simple. Do the spark plugs need to be removed to change out a fuel injector? Or can you easily access the plugs during this process? I ask because if so I was going to ask the mechanic to toss in my new AC DELCO plugs/plug coils (boots) when he does the injector to get the Autozone crap out of there and save on labor expenses! Thanks in advance for any help provided, you guys are amazing!!!