1991 Mercury Grand Marquis Logo
Posted on Dec 28, 2010
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My 1991 grand marquis wont crank, it was running great on friday then sat morning it just spending i smell gas when im trying to crank it. i was thinking it as jump time

  • Paul Bade Dec 28, 2010

    "then sat morning it just spending" Do you mean you hear the starter spinning without the engine turning over?

  • Robert Wood
    Robert Wood Oct 21, 2015

    5.0 302 engine ?

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4 Answers

Robert Wood

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  • Posted on Oct 21, 2015
Robert Wood
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Have you checked for spark at the plugs ?

Brandon Brown

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  • Posted on Oct 21, 2015
Brandon Brown
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No its the inn nurser fuel switch to the motor and that is why you smell gas

  • 1 more comment 
  • Robert Wood
    Robert Wood Oct 21, 2015

    Inertia

  • Robert Wood
    Robert Wood Oct 21, 2015

    Inertia switch kills power to fuel pump and you will not smell gas.

  • Brandon Brown Oct 23, 2015

    Yes you will the switch is on the pas. Next to the blower motor and door so there for if it is tripped on you will smell of gas I know for a fact that you will I have replace them so many time in Marquis cars people replace Evey thing that is fuel things and they still small gas

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  • Expert 117 Answers
  • Posted on Dec 28, 2010
Michael Kovalik III
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Lot of miles? check timing chain . do this by removing cap if it has one see if rotor turns while cranking

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  • Posted on Dec 28, 2010
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It may have jumped time. However, if you smell gasoline, it got flooded. Here is the lay of the land.
If it cranks, as in turning over but not starting. And you smell gasoline. The fuel is good, but there is not electrical spark going to the plugs. Bad coil. Cracked distributor cap. Moisture under the cap. Check this before you worry about the timing. You first have to test for ignition. Also don't pump the gas when starting it. See what happens. Also when the car is warm, never pump the gas. Also check the wire going from the distributor cap to the coil.
Good luck,
Hope this helps,
Best,
Mark

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