I posted this on the Mercury group but I don't see any activity. The Grand Marquis is very close to the Crown Vic so I hope someone can help.
My 2010 Grand Marquis has developed a problem with its fuel gauge. Last week I filled the tank but the gauge stayed at 1/4. On the way home it increased slightly. When I drove as few days later it went up to about 1/2. Again, the next time I drove it increased to about 3/4. Now, about a week later it is indicating full.
Any Ideas as to the cause?
Thanks,
Bill A