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?
lead tetra-ethyl Pb(C2H5)4
a dog
Mine did the same, mine was a motor mount.
You forgot to let your wife in
cv joints
A little kid in the trunk with a hammer
it could be your valves or your engine
If the brakes are too loose that could be a result.
counterbalancer is bad