Turn Signals - Driving me nuts!

Well, check it out if there is one bulb it may be a 1157 as there are two elements a 1156 has one element so if 1156 were the correct bulb, Id think you'd have 1 bulb for tail lights and 1 bulb for brake/turn. if it is one bulb try 1157 as the bulb has the tail light element and a brake/turn element. Basically make sure it takes either 1156 or 1157. I'd think its a 1157(2 element) bulb so the 1156 may be incorrect