1993 Mercury Grand Marquis - New Daily Driver

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  • Panici
    Moderator
    • Dec 2009
    • 2348

    #1

    1993 Mercury Grand Marquis - New Daily Driver

    Something a little different for this forum. Since I've had a thread for every car I've owned, why break the trend now.

    Picked this up about a month ago after selling my '04 Jeep TJ. Seems like I'm going backwards, as this means the newest car I have now is from 1999!
    Owned for most of it's life by an older lady and then her family. I bought it from a young fellow who owned it for only a year.

    Low mileage car, had only 41,000km (25,000mi) on it when I bought.

    It was down almost 2 qts of oil when I picked it up, but hasn't burned any since then. Brake fluid res was low enough to throw on the dash light. I think the last owner just had zero mechanical knowledge.
    Interior cleaned up very well. Still may go at the driver's seat with my pet stain cleaning machine.

    My first ever experience with a mechanic on my own vehicle, as I've always done all work myself. I just had surgery a few days after I picked up the car, so the push for roadworthiness to get a Safety inspection had to be done by someone else.
    He did front brakes, front balljoints, airbag module, and RH cat converter.

    Otherwise the car looks very well maintained. Found a receipt for over $4000 of repairs done about 5 years ago.
    Quite a few firsts for me with this car, having never owned a ford product, a V8, or something with a bench seat.

    Just had it undercoated with Krown for the first time on Tuesday.

    ---------------------------

    Like any 30+ year old car there are still many small items to address:

    1. Driver's side wiper arm doesn't put enough pressure on the center of the blade, and doesn't even touch the glass. Cannot see anything in the rain or snow. Looks like the splines on the arm are pretty loose. Temporary solution for this is to run a significantly smaller blade on the driver's side.
    I've already purchased a replacement arm but it didn't slide onto the splines. Will need to revisit this when it's not freezing outside.

    2. There is water pooling in passenger side rear floor board. Haven't determined the cause of this yet. Doesn't look like it's coming from the door or window. Surprisingly enough (because there is no water in the front floor pan) searching the relevant forums suggests a plugged drain in the HVAC box. I still need a few more weeks of healing before I'm going to be tackling this one.

    3. Doesn't start on the first crank. Also loud buzzing/rattling coming from engine bay that corresponds with a higher idle speed. Suspect the idle air control valve is in rough shape from "easy" driving and is the cause of both of these issues.

    4. Was pinging audibly at heavier loads, and won't accelerate at WOT. 93 octane gas has been an effective band-aid for the pinging, but I suspect a fuel delivery issue.
    Previous owner had coils, plugs, and wires replaced in the last year. I'll start with a fuel filter and then go from there.

    5. Airbag code 42 was resolved with the replacement (used) airbag module as new ones are NLA. Then had an intermittent code 41. Now have a constant code 51.

    6. All tint has turned purple. But the worst offender is the rear glass where someone tried to peel off the old tint. It left a mess of glue and old tint that is near impossible to see out of.

    7. Pulls noticeably to the right, I hope an alignment will take care of this one.

    ---------------------------

    All in all a comfortable car, and very chill to drive.
    This was before the Aero model was refreshed so it still has many 80s feeling touches compared to the later panther chassis cars.
    It's absolutely huge inside-and-out. Looks hilarious beside the Miata.

    Will be able to tow as much (or more) then my Jeep did when I install a hitch.
    Hoping to get 10-15 years of daily duty out of it with regular undercoating.

    I normally hate an Automatic trans, but the mechanical four speed in this isn't so bad with the electronic O/D lockout.
    Still wish it was manual, but that's likely out-of-scope on this one. Still have four manual cars plus the motorcycle to get my fix.




























    Last edited by Panici; 12-13-2024, 03:44 AM.

    '87 BMW E30 325is Turbo

    '99 BMW E36 M3 - - - '98 BMW E36 328i
  • Panici
    Moderator
    • Dec 2009
    • 2348

    #2
    Post 2 reserved.

    '87 BMW E30 325is Turbo

    '99 BMW E36 M3 - - - '98 BMW E36 328i

    Comment

    • 82eye
      E30 Mastermind
      • Jan 2009
      • 1936

      #3
      nice buy .. apocalypse survival car .. lol
      it's got basketweaves and interior wood trim ... just squint your eyes and pretend it's a more reliable e39 ...

      edit: bonus wood in the trunk too !

      Comment

      • Panici
        Moderator
        • Dec 2009
        • 2348

        #4
        Originally posted by 82eye
        nice buy .. apocalypse survival car .. lol
        it's got basketweaves and interior wood trim ... just squint your eyes and pretend it's a more reliable e39 ...

        edit: bonus wood in the trunk too !
        That is one heck of a squint. 💀

        The front of the car is ugly. They went a little too far with the "Aero" look IMO.
        Rear has grown on me with the low slung license plate.

        Trunk is absolutely massive. Think we bought four "horse feed" sized bags of firewood that day and there was room for another four in there easily.

        '87 BMW E30 325is Turbo

        '99 BMW E36 M3 - - - '98 BMW E36 328i

        Comment

        • 2mAn
          Señior Mod
          • Aug 2010
          • 20336

          #5
          Oh yes LOL... whats the lug pattern on these? gotta throw some chrome rimzzz on this and some 15s' in the trunk
          Simon
          Current Cars:
          -1966 Lotus Elan
          -1986 German Car
          -2006 Volkswagen Jetta TDI

          Make R3V Great Again -2020

          Comment

          • rmdashrf
            Wrencher
            • Feb 2014
            • 207

            #6
            reminds me of my childhood.

            Looks clean!

            Comment

            • Panici
              Moderator
              • Dec 2009
              • 2348

              #7
              Originally posted by 2mAn
              Oh yes LOL... whats the lug pattern on these? gotta throw some chrome rimzzz on this and some 15s' in the trunk
              5x4.5" Lot of folks run Mustang wheels.

              Think I'm going to keep things original and get a fresh set of whitewall tires. Need to buy a missing centercap as well.
              Other option I might explore would be "police package" black steel wheels with chrome center caps.
              Might size up on the tires for some more ride comfort, wheelwells are massive so there is plenty of space.

              Originally posted by rmdashrf
              reminds me of my childhood.

              Looks clean!
              Me too. I think my immediate family mostly had GM, but I surely rode in many early 90s rides growing up.
              I remember my friend's mom's Taurus(?) with a rear facing jump seat that folded up from the floor in the back of the wagon. Was the best seat in the house!
              Crash safety, what's that?
              Last edited by Panici; 12-13-2024, 06:54 AM.

              '87 BMW E30 325is Turbo

              '99 BMW E36 M3 - - - '98 BMW E36 328i

              Comment

              • Panici
                Moderator
                • Dec 2009
                • 2348

                #8
                Just over a year now and 10,000km on the clock.
                The Grand Marquis has been pretty reliable. Think it went through a ball joint and a couple other front end suspension bits in that time.
                Checked off numbers 1, 3, and 7 from that initial to-do list. Number 6 is functionally solved as my rear-view mirror fell off during the summer heat. Can't see the rear window tint anymore!

                I have to say it has come in pretty handy to have a comfortable Automatic car with some health challenges I've had lately.

                And honestly it's just a great vibe driving a classic car.
                December I enjoyed a Frank Sinatra christmas tape through the original AM/FM/Cassette deck on those dark early morning drives into work.

                --------------

                I put off a new set of tires, until finally last monday I understeered into a snowbank. I was driving slowly but there was just no front end grip on the 14 year old all season tires in the bitter cold we've had. They had plenty of visible tread but were rock hard.

                CAA showed up and some shoveling and pushing later and the car was out. Needed a driver's side front tie rod end and an alignment, but otherwise no damage.

                I decided to fill out the huge wheel wells, and went up from the stock 27" tall tires to 29" tall tires.

                215/70R15 98T stock size up to 235/75R15 105S.
                Went with the Toyo Celcius II All-Weather rated units.

                Load rating is 105 up from the 98 rating on the previous 215/70R15, which corresponds to +400lbs per tire.
                Still trying to understand how load rating alters sidewall stiffness and "harshness" of the tire feeling.
                Intuitively the air should be doing the work of suspending the car?


                I have set them to 28psi and will potentially go lower.


                Haven't put that many miles on them yet so hard to comment if they are more comfortable.
                So far the extra ground clearance has been helpful with the snowstorm that's rolled through!









                Last edited by Panici; 01-28-2026, 02:17 PM.

                '87 BMW E30 325is Turbo

                '99 BMW E36 M3 - - - '98 BMW E36 328i

                Comment

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