Hi, I'm looking for some possible causes of why my signals work perfect sometimes then sometimes dont work at all, or need to be held in the direction i am going to stay blinking.  I just replaced the signal unit this morning after ordering a new/used one off ebay and it is still doing the exact same thing.   the bulbs look great also.   could it be something with the ignition?  anyways, if anyone has had a similar issue or can just think of a possible cause i would appreciate any guess.   thanks alot!