Just replace the front bulb, it's no good. That's why the rear one blinks so fast. I'll bet it blinks fast on the dash board too, doesn't it?
How do you replace a front turn signal bulb for a 2000 sts cadillac?"
Change the front turn signal light bulb. It's bad.
Bad bulb socket? Broken Wire to socket?
Check the back signal light. Usually if the front blinks fast the back is out or need to be replace. Vice versa
One of the front blinker bulbs is burnt out. Replace the bad bulb and the blink should function normaly. you have a front right turn signal bulb that is burned out. the resone it blinks fast is there is less load on the flasher .
A bulb has burnt out that is why it is blinking fast. Check the front and rear bulbs.
It means that a light bulb is out on the side where the light solid (not blinking) it could be in the front or rear of the vehicle.
your rear bulb is blown - replace the bulb The turn signal blinks fast because the bulb is going out. That is also why the others dont blink.
If you mean it stays on and does not blink then check the other turn signal bulbs on the right side front/back. If it blinks but does not turn off when you make a turn then the problem is in the steering column canceler.
Get a creeper and go at it from the bottom, all of what you need is right there.
Front turn signal light on the same side is not working.
Replace bulb Check socket for power & ground Check socket for corrosion