I just noticed lately when I turn ON my turn signals, they start blinking twice normal then starts blinking really fast. And not all the rear light bulbs are ON. Could this be my turn signal relay? Thanks Ford, Mustang GT, 2007

Sounds like a dead bulb. I assume the outside most bulb is burnt out.

Definitely sounds like the turn signal relay could be the problem. I'd also check to make sure that you don't have some bulbs burnt out. Depending on how the system operates, there could be a reduced load on the circuit due to some bad bulbs causing the lights to blink faster than normal.

If one of your rear bulbs is burnt out then the signals will react this way. 2007 is not very old of a car for a signal delay problem. It would be more likely a bulb.