This is not for the rule abiding, uptight individual, so as far as the rest of the world goes.. if you have one key to your transponder key vehicle. Simply take the key hide it under your dash on the driver side in any fashion you feel comfortable with, but, of course, have a key cut that matches it(regular key) your computer will pick up the transponder under the dash and the $3 key will start it. Your other question will be "can people still my car now" yes, they can... will they.. NO, probably not. The reason for that is, that thieves know what they are stealing. they know your car has a transponder on it and won't even try.. they will move on to the next car. Can you bypass the transponder? NO. once again.. a thief knows this...
how to change igntion lock
Why won't the keys in the ignition turn on a 1992 grand marquis?
where is the ignition control module located on mercury marquis
The 2005 Mercury Grand Marquis takes 22" replacement wiper blades on both sides front. You can go with standard wipers or try the new beam blade style. If you lookup wiper size by make, model and year you can shop the different options.
Approx 4200-4500 depending on options.
According to the 1998 Mercury Grand Marquis Owner Guide it has the Coil On Plug ( C.O.P. ) ignition system so there are ( 8 ) individual coils firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Grand Marquis
Passenger side rear
yes
Ignition coil D primary/secondary circuit
The ignition timing is controled by the PCM (computer), which is located below the master cylender inside the dash panel. There is no separate ignition module.
The ignition circuit does not have a fuse, typically. If it has a high-power fuse, it's in the fuse box under the hood.
Check the ignition coil on the Marquis. Check the crank sensor as well. One of these is probably bad.