Transmission Problems Common Due to Front Pump Failure on Mercury Grand Marquis

Problem Description and Possible Solution

Transmission problems are common in this model, often as a result of a failed front pump. The pump loses its ability to create hydraulic pressure, which an automatic transmission needs to function. A sign of front pump failure can be a whine type noise.

Problem Data
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Average mileage: 132,966 (40,000–289,000)
15 model years affected: 1992, 1994, 1995, 1996, more1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2009
56 people reported this problem
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Viewing 1 - 20 of 32 comments
MINE WILL SLIP, WHEN GOING AT AN EVEN SLOWER SPEED, TRYING TO GO UP A GEAR, IT HUNTS FOR THE GEAR FOR AWHILE AND THE ENGINE REVS, BUT CANNOT FIND THE GEAR FOR AWHILE. THEN IT FINDS THE GEAR AND IT IS FINE.
the transmission will not go into drive only reverse.
transmission seems to hesitate when upshifting from 30 to 45 mph. runs okay at higher speeds
My transmission will go in forward but not reverse
My car whining and jerks when i push the gas pedal while driving
There is a whining noise and sometime it hesitate while driving.
Car wont move in drive but will reverse just fine. What could cause that?
Revs up before it takes off after stopping. Shifts in and out of gears as I drive.
Whining noise in low gear, changing frequency as it slips into 2nd gear. Some of the same noise as it accelerates in 2nd gear. Not noticable after gets in 3rd and 4th. Ford dealer says it's common and not a problem as long as the car isn't loosing power. (DUH).
car whines only from 1st to 2nd gear, all other gear switches are fine.
Had to pay for a new transmishion on our 2005 Merc. Grand Marquis within first year we bought from dealer in 2009. Hesitated when put in gear and slow to catch gear :( felt Taken...
Lost 3rd and 4 th gear driving a long car just rev's put into 2nd gear to get home
Want get reverse but will drive
Takes time to go into reverse, then catches
transmission causes car to jerk when gas is barely pressed. it runs fine at high speeds but when slowing down it jerks really hard when downshifting
hesitates when shifted into reverse.
just after buying car few years ago car whined in and out of gear then catch be ok. we got it checked but brought it back several times right after warenty exspired they told us we need a rebuilt transmishion. so upseting 3,000 later..
The car was drive able and it would only jerk, now it only wines when i press the gas
It gets warm and will not go in to first.
Press gas, engine revs, but car does not go. The transmission seems to be problem.