I don't have any turn signals at all and when I step on the brake both turn signals light up. Could there be a ground problem?

Also the 4 ways only work on the front.

What a bummer! Sounds like you got some wierd wiring problems. You might want to get a wiring diagram. Also, you might add info to your post such as year, type, etc.

Hey Eddie with the 67 SS Chevelle. Look at this and try it on one side. See if that side starts working.
http://www.chevelles.com/forum/ultimatebb.php?ubb=get_topic;f=22;t=003025#000001

Got em fixed. Sockets were bad.

Thanks,
ED