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Mercury Grand Marquis Car Problems

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

Problem Description and 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.

(91 people reported this problem)

Problem Data

RepairPal Verified
Average mileage: 137,150 (40,000–289,000)
16 model years affected: 1992, 1994, 1995, 1996, more1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009

Not Your Mercury Grand Marquis Problem?

Brake problem? Or maybe a faulty head gasket cylinder?
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Viewing 1-20 of 41 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.
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...
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).
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
The car was running fine until I got in it yesterday and started it, I put in reverse backed out then neutral then put in drive and it died. It will start and run perfect in reverse but dies every time I put it in drive
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..