Question about 1992 Mercury Grand Marquis

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What engine do i have

I was told I have a 5.4 or 54.1 engine. Obviously I do not know about engines. Is there a way to learn what engine I have under the hood without taking it apart? Does it say it somewhere on the engine itself or do I have to take it to a mechanic? I want to sell it but not sure what to say about the engine.

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  • goodfgirl196 Jul 17, 2010

    Just want to thank everybody for being so helpful, I will recommend you guys to my friends. Again, thank you!

  • goodfgirl196 Jul 22, 2010

    You guys were all right, the engine is a 4.6L V8. Again, thank you for all your help.



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No need to take it to a mechanic, we are mechanics here on FixYa that can answer your question(s).

All 1992 Mercury Grand Marquis had are 4.6L = 281 cubic inch V8.

There should be a tag or sticker located within the Engine Compartment, possibly on the underside of the hood that has Engine Specifications.

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at!

Posted on Jul 13, 2010

Testimonial: "Thank you, maybe someone put a different engine in the car before I bought it. I will look where you said though an see, again, thank youl"

  • Patrick Rayome Jul 13, 2010

    IF someone put a 5.4L in there instead of the 4.6L, then most likely the Engine Specification Tag was not changed and will be wrong. These tags or stickers are not easily changed out.

    Thanks for using


  • Patrick Rayome Jul 22, 2010


    Thank you for the Rating and the Kudo's. You are entirely welcome.

    What was the end result? Was it the 4.6?




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Open the driver door. Either on the door itself, or on the frame (where door closes to; latch area) you shoudl find a decal that will give you information about the engine and tire specifications.

Here, you should find what size engine it is - 5.4L sounds right - but not 54.1. 5.4L indicates the amount of fuel distributed to the engine while it's running.

Also, you should be able to find this information on the hood of the car (bottom side of hood) or on the front most part of the frame (near radiator) where the hood comes down {above headlight(s) }.

If you do not find any of this anywhere on the vehicle in the places indicated above, I suggest visiting a local auto parts dealer as they can help you find this information.

Please let me know if you need further assistance.


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Posted on Jul 13, 2010

Testimonial: "Very informative, thank you very much. Will check all that you have said in the daylight tomorrow. Thank you sooooooooo much!"

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