Tapping, Clicking, Clunking Sounds

If your engine starts making loud and unfamiliar noises, it could be a sign of significant engine problems. Clunking sounds may indicate loose or broken parts, popping noises might signify premature detonation of fuel in the combustion chamber, and grinding might mean transmission trouble, for example. When you hear strange noises, it’s always best to let your repair shop track down the problem as soon as possible.