Squeaks, squeals, rattles, rumbles, and other sounds provide valuable clues about problems and maintenance needs. Here
are some common noises and what they mean:
Squeal - A shrill, sharp noise, usually related to engine speed:
·Loose or worn power steering, fan or air conditioning belt.
Click - A slight sharp noise, related to either engine speed or vehicle speed:
· Loose wheel cover.
· Loose or bent fan blade.
· Stuck valve lifter or low engine oil.
Screech - A high-pitched, piercing metallic sound; usually occurs while the vehicle is in motion:
·Caused by brake wear indicators to let you know it's time for maintenance.
Rumble - a low-pitched rhythmic sound.
· Defective exhaust pipe, converter or muffler.
· Worn universal joint or other drive-line component.
Ping - A high-pitched metallic tapping sound, related to engine speed:
· Usually caused by using gas with a lower octane rating than recommended. Check your owner's manual for the proper octane rating. If the problem persists, engine ignition timing could be at fault.
Heavy Knock - A rhythmic pounding sound:
· Worn crankshaft or connecting rod bearings.
· Loose transmission torque converter.
Clunk - A random thumping sound:
· Loose shock absorber or other suspension component. Loose exhaust pipe or muffler.