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Headlights Tail and Brake Lights
Chevy Astro
Turn Signals and Hazard Lights

Why is the left signal light on all the time and blinking really fast on the front yet the rear does not show anything?


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Wiki User
2004-05-19 09:13:52
2004-05-19 09:13:52

Usually if the signal is blinking fast, it means there is a problem with the circuit. Usually this is caused by a lightbulb going out. They've engineered the cars to blink fast to let you know that the bulb might be out, since you usually can't see your own turn signals. I'd try replacing the rear taillight bulb first to see if that fixes the problem.

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If the right blinker is blinking really fast, it means that there is a turn signal bulb on the right side that is burned out. (coulod be either front or rear)

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It has been my experience that a rapid turn signal indicates there is a burnt-out signal light bulb (either front or rear) on the side of the rapid blinking signal. If the right signal is blinking rapidly, the problem is in the signal lights for the right side (front or rear) of the vehicle. Turn the rapid signal on and step out of the vehicle to find which bulb is not lighting.

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Turn on that fast blinking signal light and check to see if the front and rear signal lights are both working, chances are you have a burned out bulb. If both front and rear bulbs are flashing fast, replace the flasher relay.

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I would look at the REAR signal light on the same side of the car. It is probably not blinking at all and the bulb needs to be replaced.


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