Question about 2001 Buick Regal

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Turn signal hi i have a 2001 buick regal ls and a the left side turn signal is faster than the other side, i have changed the bulbs, checked the wires, but same thing. is there something i forgot to check

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Flasher speed is dependant on the amount of load (resistance) of the circuit engaged. More resistance (load) equals a faster disengagement/engagement of the flasher. In your case, because one side is behaving differently from the other you need to check the LH signal circuit to find out what is creating the extra load. Something is adding resistance to the LH circuit. I suspect a partial short circuit to ground possibly due to rust/corrosion at some point in the LH circuit. That would create just such a load on the flasher. A full short circuit would blow the fuse to the flasher. A partial short only increases the load on the circuit proportional to the conductivity of the short.

Posted on Jul 02, 2008

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