Your 1996 Mercury Grand Marquis may need a new transmission or something as simple as transmission fluid.
Simply unbolt the old one and bolt the new one on, there is no trick to it.
Remove the spark plug wire from your 2001 Mercury Grand Marquis. Remove the spark plug with a 5/8 deep well socket, white turning it to the left. Reverse the process to put in the new spark plug.
take a big rock and bust it out. than weld the new one in.
it is either you have a shor in your wiring or you have a loose connectoin or you need a new relay
take off old starter and install new one in its place. finished
Remove the spark plug wires from your 2002 Mercury Grand Marquis spark plugs. Remove the spark plugs by turning them to the left with a deep well 5/8 socket. Reverse the process to install the new spark plugs.
Have you checked the coil's ?
Remove the tire and wheel from your 1996 Mercury Grand Marquis. Remove the ball joint retaining nuts. Pound the ball joint out with a hammer. Reverse the process to install your new ball joint.
5w 30 if it's new, older engines need straight 30 weight.
The Mercury brand of automobile was a marque of the Ford Motor Company. First launched in 1938, the final Mercury automobile, a Grand Marquis was manufactured in January 2011. Mercury are no longer making automobiles.
Take to old one out and put the new one in. Access from inside the trunk.