Make sure the air filter is clean. Fuel can't burn without air. Also try replacing the spark plugs.
If it sounds like it can't turn over and you've replaced the battery, the next thing is the Starter. Starters develope flat spots on them and that can drain a battery in a heartbeat, even a new one. I'd get your starter checked. H-T-H
yes it will i have a optima battery in my 1995 marquis
Not really a good sign. Have the oil pressure checked with a mechanical gauge at the engine when cold. If good, then have your sensor replaced.
can the fuel injectors on a 1994 grand marquis be checked without removing them from the engine, if so what type of instrument do i use
Check the fuel filter if the cars battery and alternator is good it might be the lack of fuel that is bogging the car down. My advice to you would be to check or replace the fuel filter.
On a 1997 Mercury Grand marquis : The fuel pump inertia switch ( shut off switch ) is in the trunk , behind the trunk liner on the drivers side of the trunk , near the drivers side rear tail light ( there is an access hole )
Yes. The inertia switch is located in the trunk on the drivers side (up near the trunk hinge) There will be a small white button to reset it.
pierre riguad marquis
Have the high pressure valve checked.
The computer is detecting a malfuction. The next time the light comes on, do not unhook the battery, take the car and have it checked for codes. You want to repair the cause, not ignore it.
You have a bad sensor in one of the doors, all 4 will have to be checked. Check at you local dealer for the part. In the meantime, just pull all the bulbs out so as not to drain the battery.
Dead cell in the battery. Something on which is drawing power from the battery. Stuck relay.