Question about Mercury Grand Marquis
There is a shudder which seems to be coming from the transmission. This happens at almost any speed.
When you get a shutter- drag the brake pedal lightly-
that will turn off the torque converter clutch if the solenoid
The rpm should go up with any brake pedal application-
if the converter is releasing
If you determine the torque converter clutch is bad & the
shutter,then the trans has to come out
Check engine & trans mounts also for wear
Posted on Jan 18, 2013
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Posted on Jan 02, 2017
you must drop the pan on the transmission, and I recommend draining the torque converter as well. you must rotate the engine by hand until the converter plug is visible in the access hole in the transmission. replace the filter and re-use the gasket if its the reusable factory gasket ( has hard inserts around each bolt hole) then re-fill the transmission through the filler tube on the right side of the engine compartment. be sure to use Mercon V fluid.
Posted on Sep 05, 2010
SOURCE: Transmission hesitates shifting into second and perhaps third gear when driving slow. When acceleration is positive transmission shifts smoothly. Reference "99 Mercury Transmission" as Subject when
Several things could be causing your problem:
p.s. If you have the fluid changed, make sure it's done from the tranmission pan, not through the filler tube; siphoning through the filler tube can be hazardous to the transmission, especially cars with a lot of miles
Posted on May 30, 2009
the one inside is under the dash near the drivers door the other one is under the hood on the drivers side...it will be a black box under the hood
Posted on Feb 28, 2009
SOURCE: 2004 Mercury Grand Marquis
Yes there may be a recall open on this vehicle for the catalytic converter. The number is 04E12.
Go to this website and pick recalls from the left task bar and input your VIN and check to see if your vehicle is involved.
There is also a technical service bulletin out for a rattle in the catalytic converters which maybe what you are describing and this would be covered under the 8yr/80000 miles federal emissions warranty.
Posted on Mar 30, 2009
TOOK MY 2001 GRAND MARQUIS TO THE TRANS SHOP AND OWNER, 35 YEARS IN THE BUSINESS, SAID IT WAS NOT THE TRANSMISSION. IT IS AN INTERMITTENT ELECTRICAL PROBLEM. MOST LIKELY A COIL ON PLUG THAT IS FAILING BUT NOT ENOUGH TO CAUSE THE CHECK ENGINE LIGHT TO COME ON YET. DON'T PUT ANY OF THE "FIX-IT" TRASH PRODUCT IN YOUR TRANSMISSION, CAN GUM IT UP OR DISLODGE DIRT OR METAL FRAGMENTS THAT CAN CAUSE MORE DAMAGE. SOME GARAGES HAVE COMPUTERS THAT CAN DO A STRESS TEST ON THE MOTOR TO FIND WHERE THE WEAKNESS IS LOCATED AND WHAT PART IS BEGINNING TO FAIL. IF IT IS A COIL THE PART, IF YOU ARE HANDY, YOU CAN CHANGE YOURSELF BUT EVEN IF YOU ARE NOT IT IS NOT AN EXPENSIVE DIAGNOSIS AND FIX.
Posted on Aug 22, 2009
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