To cover the basics, weak fuel delivery, lack of air, or timing. Put a fuel pressure gauge on it and see if it reads within spec. When you are idling (ie foot off the gas pedal) air is provided to the engine by the idle air control valve, if that's bad then it may not be able to idle. You could check for trouble codes too, even if engine light is not on.
1994 Mercury Grand Marquis
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Maintenance & Repair
I went to the gas station a few days ago and when I went to start it back up it started but then died right after it sometimes stay running for about thirty seconds but very rough and then dies aga...
1994 Mercury Grand Marquis GS Sedan RWD
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Maintenance & Repair
I NEED TO FIND OUT WHERE ARE MY AC VACCUM LOCATED AT AND COULD I LOOK AT A DIOGRAM OF IT 1999 MERCURY GRAND MARQUIS
1999 Mercury Grand Marquis 4 Dr LS Sedan
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Maintenance & Repair
I HAVE A 1984 MERCURY GRANDMARQUIS. WHEN I TURN THE KEY ON IT GETS ONE SHOT OF GAS AND STOPS. IF I HOLD THE KEY ON THE ON POSITION IT WILL KEEP GETTING GAS, BUT ONCE I LET GO IT STOPS. HOPE SOMEONE ...
1984 Mercury Grand Marquis
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Maintenance & Repair
I have a 1981 Merc Grand. The previous owner put a 5.0/302 motor in it. There are a few things that has been converted on the car such as the fuel filter now requires a 1976 filter. The factory reco...
1983 Mercury Grand Marquis
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Maintenance & Repair
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