Busted Auto Blinkers

courtesy of Bob, The Auto Answer Man

Hi Bob
Before I go spending what could add up to $300-$400 on my truck, maybe you can give me some advice! I have a 1996 GMC Sonoma extended cab p/u. About a week and a half ago, I had to replace my battery (after 142,000 miles). The night before I replaced the battery, my blinkers stopped working. When the headlights are on, so are the two indicator lights for the blinkers. They do not flash, they stay constant. Once the headlights are turned off, the indicator lights are not on. I can work the blinkers manually. I believe that one of my blinker bulbs is out (next to be checked) . . . would that cause the blinkers not to work automatically. Any ideas would be most welcome!
Thank you,

If both the left and the right do not blink, then it is usually the flasher module. It is a round little can looking thing found somewhere under the dash board. On some cars it is near the fuse box, while on others it is by itself on the passenger side. Look in your owners manual to find the exact location. And here is a tip to find bad bulbs, turn on the 4 way flashers, the hazard lights. They usually have their own flasher module. Then walk around the car to see what is not working.
Good Luck!
Drive Safely!
Bob, The Auto Answer Man

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