The bulb that was burned out was replaced witht the same type of bulb but is still flashing very fast.
GMC Q&AAsk Your Question
2002 GMC Envoy Question: My right turn signal is flashing very fast. I did replace the bulb
Answer #1TL-MOTORS from TL Motors, September 22, 2011, 10:03Technician
IS ALL THE LIGHTS STILL BLINKING IF YES, CHECK PINS INSIDE LIGHT BULB SOCKET..YOU MIGHT HAVE TO CLEAN THE PINS..
Replytone_2u, September 23, 2011, 07:22Rookie
Thank-you. I'm not a mechanic-changed the bulb myself-but what are the pins? And how do I clean them?