Probably age at this point.
If the radiator is cracked then the vehicle has ran dry on coolant. This would cause the radiator to crack if there wasn't any coolant.
cause its a civic that Honda makes
more than likely the head gasket
There are various things which could cause a cracked radiator. You should try to consult a professional on the matter.
Cause it does
YES
A bad tire can cause your 2002 Honda Civic to jerk while driving. A bad ball joint can also cause this issue.
no cause they are different years, model changed.
Terrible engineering that's why it's a Honda
A cracked radiator would leak the fluid out, leaving no coolant for your engine which would cause your engine to overheat and be destroyed pretty quickly. So the answer is NO.
Cracked Head Cracked block Blown headgasket Failed oil cooler (water over type)
A cracked head.