[treau]

Yes I have a 2000 Blazer and all of a sudden my left blinker light blinks so fast and the right blinker is OK . I tried to take out the left rear bulb but the front is still blinking crazy. Do I need to change all bulbs? Thanks for any and all help.

[CaptainRich]

Don't change all of the bulbs until you have checked all the bulbs.
Your problem could be the left front bulb, but you need to check.
You could also have a poor connection inside the lamp socket. Inspect the socket carefully.

[treau]

Don't change all of the bulbs until you have checked all the bulbs.
Your problem could be the left front bulb, but you need to check.
You could also have a poor connection inside the lamp socket. Inspect the socket carefully.

Thank you. I got to looking around and on my back left light it had about 2 inches of water and the bulb was coroded. I drained the water and replaced the bulb and put some stuff to fix the leak.

Thanks again Terry

[TxGreaseMonkey]

It's best, if you can, to apply dielectric grease to the base of the bulb.