Marquis sputtering like it doesnt know which gear to be in when maintaining certain speeds, slight odor of gas in oil?
Is the check engine light on ?
Fuel in the oil could be a faulty injector or the fuel pressure regulator.
SOURCE: My 2001 Mercury Grand Marquis LS has this jerking
You have a described one of the coils going bad. You need to ru na power balance test to determine which cylinder it is so only one is replaced.
Testimonial: "Thank you, I will get right to it"
SOURCE: Location of blower motor switch resistor on 2004 Grand Marquis
The blower speed controller is located under the hood on the right or passenger side on the heater housing just to the side of the heater hoses near the very back of the right cylinder head.
Yes that would cause the concern you are having.
SOURCE: how to flush and change the antifreeze on a 2001 mercury grand ma
loosen pressure cap slowly at coolant tank to relieve pressure,when pressure is relieved remove cap,place a suitable container under drain valve at bottom of radiator open drain valve.when coolant has stopped draining,close valve.then remove thermostat,[this is a good time to replace t.stat since it must be removed to refill cooling system],disconnect heater core coolant supply hose at rear of intake manifold.add coolant thru t.stat opening until coolant comes out of coolant supply hose fitting,reinstall hose and tighten[not to tight] reinstall thermostat o ring and thermostat.add coolant to tank until the coolant level is between the COOLANT FILL LEVEL marks.select the maximum heater temperature and blower speed settings run engine until it reaches operating temp.add coolant until the coolant level is between the COOLANT FILL LEVEL marks.turn off engine allow it to cool, recheck coolant level,add as needed .ford requires this procedure to avoid engine damage due to trapped air.
SOURCE: how to replace starter +1993 Mercury Grand Marquis
disconnect battery,,jack car up,,put jack stand on frame,,take starter bolts out,(may not be easy),,take wires off starter,,hoped it helped,,
SOURCE: how do you replace headlight
you have to remove the whole lens usually two bolts onrad upper rad support remove grill and rmove lens unitturn on headlight mark which bulb to take out looking at other side light
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