Sounds That Indicate Problems
Squeaks, squeals, rattles, rumbles, and other sounds provide valuable clues about problems and maintenance needs. Here are some of the more common noises and what they indicate:
A shrill, sharp noise related to engine speed:
A slight sharp noise, related to either engine speed or vehicle speed:
A high-pitched, piercing metallic sound; usually occurs while the vehicle is in motion:
a low-pitched rhythmic sound.
A high-pitched metallic tapping sound, related to engine speed:
A rhythmic pounding sound:
Loose transmission torque converter.
A random thumping sound:
You can find other helpful advice and information regarding symptoms that indicate engine problems.