If this is the case, try disconnecting the ac compressor. If not that, it could be in the 'master switch' (turn signal lever unit). Does anything else go out along with the turn signals? Does it only happen when you turn on the heater or ac?
Mercury Grand Marquis was created in 1983.
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No , the last model year for the Mercury Grand Marquis was the 2011 model
The first generation of Mercury Grand Marquis cars has been in production since 1975. The last Mercury Grand Marquis was manufactured in January 2011.
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