My wife's 97 develops a rapid left turn signal about every 6 months. The darn thing will work fine for half a year and then suddenly one day will blink like a mad fiend. I have found that the problem with her car is in the front turn signal light. Pull the whole light assembly from the front of the car (you have to take out the one mounting screw found under the black plastic panel that covers the radiator support, right next to the extreme right top corner of the driver's headlight). To get the turn signal assembly out, once the screw has been removed, can be done by taping up the blade end of a large screw driver (to keep from chipping the paint) and inserting it in between the black gasket of the turn signal light body and the fender, right at the back edge of the light closest to the driver's door. Be careful, and patient, and by grabbing the screw driver head in one hand and the blade itself, near where the tip is inserted, with your other hand, pull the whole unit towards the front of the car. It will pop out eventually, but you will have to work at it, being carefull not to scratch anything. When out, and the bulb removed from the light assembly, I was able to restretch the spring shaped contacts that are inside the light bulb socket. Reinstall the bulb and my problem was solved, for another 6 months. Apparently the contacts lose their shape, don't really contact the bulb well enough to make a good electrical connection, change the resistance on the circuit, and the whole thing speeds up. Hope this helps someone!