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.
Transmission Problems Common Due to Front Pump Failure on Mercury Grand Marquis
Average mileage: 125,544 (40,000–289,000)
46 people reported this problem
29 people shared problem details
2006 Mercury Grand Marquis49,000Visitor
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.
2005 Mercury Grand Marquis150,000Visitor
the transmission will not go into drive only reverse.
2005 Mercury Grand Marquis187,540Visitor
There is a whining noise and sometime it hesitate while driving.
2006 Mercury Grand Marquis135,500Visitor
Revs up before it takes off after stopping. Shifts in and out of gears as I drive.
2001 Mercury Grand Marquis58,000Visitor
transmission seems to hesitate when upshifting from 30 to 45 mph. runs okay at higher speeds
2009 Mercury Grand Marquis115,000Visitor
My transmission will go in forward but not reverse
1996 Mercury Grand Marquis146,000Visitor
My car whining and jerks when i push the gas pedal while driving
2007 Mercury Grand Marquis61,000Visitor
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).
2005 Mercury Grand MarquisVisitor
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...
2009 Mercury Grand MarquisVisitor
Takes time to go into reverse, then catches
2005 Mercury Grand Marquis40,000Visitor
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..
2000 Mercury Grand Marquis116,000Visitor
Want get reverse but will drive
2004 Mercury Grand Marquis75,000Visitor
Lost 3rd and 4 th gear driving a long car just rev's put into 2nd gear to get home
2007 Mercury Grand Marquis57,000Visitor
hesitates when shifted into reverse.
1997 Mercury Grand Marquis130,000Visitor
car whines only from 1st to 2nd gear, all other gear switches are fine.
2000 Mercury Grand Marquis182,000Visitor
Car wont move in drive but will reverse just fine. What could cause that?
2005 Mercury Grand Marquis105,000Visitor
Once in drive the car will not move
2001 Mercury Grand Marquis100,000Visitor
The Transmission made a loud squelling noise and now will not move into gear. would shut off.
2005 Mercury Grand Marquis102,000Visitor
Whenever my car is in park, when I shift it into 1st I have to rev the engine (quite a bit, I'm sure my neighbors hate it) for it to finally grab first gear. Once in gear I must keep the o/d off button on...if the car goes into overdrive it does not down shift unless again a lot of revving (while the car is moving). Any help will be great!
2007 Mercury Grand Marquis100,000Visitor
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
Just noted a lead from a seal in the front of the transmission case that holds the transmission...
I have had a no start problem about 3 times. The first time this happened was in January of last year. Came out to start my car and it would not start. Prior to this incedent the car started fine s...
I never heard of a Grand Marquis needing alignments? Car don't pull to left or right when I rel...
37,000 miles on car, no increase in rpms, only "slips" for about 1 second.