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2007 Mercury Grand Marquis Question: Between 55-70 mph only, feels like transmission slips.

 

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horseforever, Jamestown, NY, January 27, 2014, 15:05
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37,000 miles on car, no increase in rpms, only "slips" for about 1 second.

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    G. T. Service Center (4215 Answers) , Stephenville, TX - (254) 638-3236
    ProfessorG January 27, 2014, 15:34
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    There is a history of front pump failures on those, hope it's not yours.

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    pushrod January 27, 2014, 16:09
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    If it were slipping rpm would increase, even for that 1 second! Scanner can actually display data to show slippage. Have it tested.

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