rear end whine · differential noise while driving
A whining or howling noise coming from the differential (front, rear, or center on AWD cars), changing pitch with vehicle speed.
Check the differential fluid level if accessible - low fluid is a common, relatively cheap cause worth ruling out before assuming gear wear.
Get it checked soon. A worn differential can progress to complete failure, which can lock up a wheel or cause loss of control.
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Descriptions are for guidance only and do not replace a workshop inspection. If you are ever unsure whether it is safe to keep driving, pull over in a safe spot.
Clunk when shifting from park into drive or reverse
InfoA single clunk or thud sound is heard from underneath the car specifically when shifting out of park into drive or reverse.
4WD or AWD won't engage
WarningSelecting 4WD or engaging AWD mode fails to actually shift power to the extra wheels, or the indicator light does not confirm engagement.
Vibration only when accelerating or towing, not when coasting
WarningA vibration appears specifically when accelerating or under load (towing, climbing), but disappears when coasting or maintaining steady speed.
Grinding noise when braking
SeriousA harsh, metallic grinding or scraping sound that happens specifically when you press the brake pedal, often worse at low speed.
