Could be low octane, Buy an octane booster and pour it into your gas tank (only costs a few dollars) or try a higher octane gasoline.
both are the same thing..............
Knocking is usually associated with worn main and rod bearings.
Driving at 50mph or above what causes a loud knocking clicking sound during acceleration?
a dog
counterbalancer is bad
it could be your valves or your engine
cv joints
A little kid in the trunk with a hammer
You forgot to let your wife in
Mine did the same, mine was a motor mount.
If the brakes are too loose that could be a result.
owners manual say it could be normal,but carbon on pistons from my experience also cause knocking,when I remove carbon knocking stops,I have corolla with 1nze engine.