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Thread: My 88 mgm

  1. #1
    Member Elias's Avatar
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    Default My 88 mgm

    I’ve been here for a while but I figured I’ll make a tread for my 88 mercury marquis (no name as of yet but need a name though) and its progress. Kind of tired of stating a new one for every thing i do to it so ima put everything here. I’ve been having it for almost 14 years i got lots of plans for it heres whats done so far to it.

    Autodiming rearview mirror with compass and garage
    New windshield replaced
    Ceramic tint (because Texas heat)
    Wagon engine bay brace
    Smog pump delete
    3g swapped
    2 core radiator (because texas heat)
    Lincoln radiator shroud
    All interior and exterior lights have been replaced with leds (ill take pics later)
    91 inner fender with the relay relocation mod
    newer marauder airbox and vic Tube
    Ho upper intake and ho tb
    http://www.grandmarq.net/vb/showthre...per-egr-and-tb

    Big brake swapped
    http://www.grandmarq.net/vb/showthre...upgrade-advice

    Bbk shorty bbk hpipe and magnaflows
    http://www.grandmarq.net/vb/showthre...pinions-option

    Currently working on the rearend still but im waiting on chris from adtr to finish those rear control arms I convince him to work on here a sneak peek of how the uppers look i sent him the lower a week ago im guessing another month more.
    http://www.grandmarq.net/vb/showthre...rsion-question

    Aluminum drive shaft but not installed yet waiting on rear end
    Poweder coated rear 1” bar and rear calipers
    Currently it has hpp 235/60/16 on it but i have some 18” saleen sc wheels like brent’s that will be going on it after rearend is done
    Ill take more pictures of it tomorrow these are a few months back
    But i have a question if I install a explorer intake with the lighting egr and throttle body will it run okay or will be to much air flow for it.
    Attached Thumbnails Attached Thumbnails 871FFBDF-8D8E-4E6F-A88E-968797156EBA.jpeg   083976E4-89B5-46B3-8687-989574924E15.jpeg   0FB9E272-AA6C-474B-BDAB-74B8FAB0F45A.jpeg   EEDCE646-FC58-457E-8B8C-8EAA7C799B2E.jpeg   BD883646-3AC5-460E-ACCD-0B442379F005.jpeg  

    Last edited by Elias; 03-08-2019 at 03:44 AM.

  2. #2
    Digital Dash Enthusiast Hearsesrock427's Avatar
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    Default

    Man I love that color, only seen a single '88-'91 around here in that slate grey. Loaded LS with cloth seats, looks at right at home next to your Marauder. May your '88 Grand Marquis serve you well moving forward!

    ADTR makes rear control arms for boxes? Shit dude, that could be the start of another wave of suspension upgrades. Ideally we get some front upper and lowers that are big brake compatible and also are an improvement over Ford's design at some point in the future. Thanks for taking the first steps!
    Slicktopped 1989 Grand Marquis "Ebyt". Primary project.
    255/50/R16 BF Goodrich G-force Sport Comp 2 tires, big disc brakes, polyurethane suspension bushings + body mounts, BBK long tube headers, HVAC delete
    Spring 2019 plans: Maintenance, aluminum driveshaft, digital dash, 6 point roll cage/chassis bracing

    Slicktopped 1985 Grand Marquis "Eva". Secondary project.
    Spring 2022 plans: Full chassis swap, maintenance, body work, etc.

  3. #3
    The Brown Blob 87gtVIC's Avatar
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    Default

    I am happy seeing you make this thread. You do a lot of work but it is scattered all over the place.


    Your not full HO yet correct?

    I think you will be fine to install the larger intake (upper and lower as the ports between stock and explorer are different and requires both to be changed on order to run one or the other) and the egr spacer and throttle body as long as you have the stock heads still. If you were running on speed density LOPO power computer I think you would have an issue. You may be okay otherwise.
    ~David~

    My 1987 Crown Victoria Coupe: The Brown Blob
    My 2004 Mercedes Benz E320:The Benz

    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  4. #4
    Member Elias's Avatar
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    Default

    Yeah compared to your tread on brown blob it is scattered but I usually just fix the things that annoy me or that i want improved. My plan was to do rear suspension then front suspension then exhaust and last engine and paint but plans had to change when my front suspension ball joints started failing and exhaust was starting to fall apart as of right now. As off right now Im just keep original engine going until it fails with small improvement. So ima working around the engine. Once it fails i will probably be getting a 327 347 or 351 built. Not sure on engine yet

  5. #5
    Member Elias's Avatar
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    Hereís a engine pic from yesterday had to replace spark plugs wire and distributer cap and rotor i was having a bad misfire on number 8. Feel way better and lighter now I can really fell a difference since the exhaust was done even did a one wheel peel out on take off no braking just straight gas 😂. I used ford racing wires msd cap and motorcraft rotor. Today ima replaces the coil since i cant even remember if i ever replaced it before and I suspect is it a bit worn out.
    Also i was checking for codes because the idiot light is on and all of these came up. Got to do some research and see what all of them are. Old car old problems.
    23
    10
    94
    44
    34
    13
    74
    Attached Thumbnails Attached Thumbnails 5F430F1D-BBF6-4162-8C12-BB944ACAF7AF.jpeg  

  6. #6
    Member Elias's Avatar
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    Heres a few pics at night with all the leds. They look brighter in person
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  7. #7
    Member of the Orb Alliance packman's Avatar
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    Quote Originally Posted by Elias View Post
    Yeah compared to your tread on brown blob it is scattered but I usually just fix the things that annoy me or that i want improved. My plan was to do rear suspension then front suspension then exhaust and last engine and paint but plans had to change when my front suspension ball joints started failing and exhaust was starting to fall apart as of right now. As off right now Im just keep original engine going until it fails with small improvement. So ima working around the engine. Once it fails i will probably be getting a 327 347 or 351 built. Not sure on engine yet
    That is a beautiful MGM!!! And your plan is logical. I did the opposite on my old Malibu and regretted it afterwards.

  8. #8
    Member Elias's Avatar
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    Quote Originally Posted by packman View Post
    That is a beautiful MGM!!! And your plan is logical. I did the opposite on my old Malibu and regretted it afterwards.
    Yeah thanks man I know its not perfect but I like this thing. When I first bought it I fell in love with the color and interior seats. It was perfect when I bought it. But one day after work i was at a stop light and someone hit me in the back and they fled the seen the police did catch them but they never fixed it. I was going to Autobody classes at the time so i got to repair most of the damage but i never finished it.
    Interior pic
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  9. #9
    GMN Regular slack's Avatar
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    How do you like the interior LED lights? I had to revert my car back to standard bulbs because I felt like they were too bright when driving at night.

    Also, any issues with cops and the exterior LEDs? Those things look crazy bright in the pics.

  10. #10
    Member Elias's Avatar
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    Yes there very bright compared to the regular bulbs but I wouldnít go back to them regular incandescent bulbs. Best thing iv done is do the led swap. I live in Texas and night driveing can be bad sometimes and i have never been pulled over for my lights I rather people see me than not. The only exterior lights that stay on are the blue light between the front and rear door. But i got to tell you switching lanes is way easier to me with my 5k lower fender corner lights people pay more attention. Currently my headlights are the hella e code light which i like compared to the original sealed ones but I think its time to upgrade them. Im looking at getting those jw speaker headlights. Does anyone have experience with these
    https://www.jwspeaker.com/products/h...0-evolution-2/

  11. #11
    Beater gonna beat sly's Avatar
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    I think those were the ones HRG was recommending, but they are pricey. You get what you pay for though. Those are supposed to be really good.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 88 MGM (SOLD), 93 Vic, 2000 Crown Vic, 2003 Expedition
    Quote Originally Posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Quote Originally Posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

  12. #12
    Member Elias's Avatar
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    Is there any tread on them or pictures of them installed or light pattern does anyone know

  13. #13
    Beater gonna beat sly's Avatar
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    thread I was thinking about: http://www.grandmarq.net/vb/showthre...ght-conversion

    pics? no. Light pattern? check the maker's website... they usually have some pics of that.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 88 MGM (SOLD), 93 Vic, 2000 Crown Vic, 2003 Expedition
    Quote Originally Posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Quote Originally Posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

  14. #14
    I'm an air-conditioned gypsy gadget73's Avatar
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    Quote Originally Posted by Elias View Post
    Also i was checking for codes because the idiot light is on and all of these came up. Got to do some research and see what all of them are. Old car old problems.
    23
    10
    94
    44
    34
    13
    74
    I'm guessing this is engine not running?
    23 - closed throttle TPS higher or lower than expected
    10 - spacer code, this appears between key on, engine off codes and stored codes
    94, 44 - smog pump inop
    34 - EGR position sensor above closed limit
    13 - cannot control RPM during low-rpm self test (this is only an engine running code)
    74 - brake on/off switch not activated during self test / user error (also engine running code)

    Of that, only the TPS one will make the CEL come on. Fix that, clear the codes, see what comes back. Fair chance the idle code will go away. If the TPS is out of range because the throttle plate is jacked open, that will explain the idle problem as well as the TPS code.
    34 can be a nugget of crap under te EGR valve that hangs it open, can also be a bad sensor. If its only a CH out of range and the valve is shut, you can pull the sensor and file the end of it a little to get it back in range.
    74 - stomp the brake pedal after you start the test and the idle kicks up.

    http://www.grandmarq.net/oldfuelinjection/page14.html


    As for the lights, I'm a conventional sealed beam guy, but a huge convert to the school of proper headlight alignment and relay harnesses.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

  15. #15
    Member Elias's Avatar
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    Quote Originally Posted by gadget73 View Post
    I'm guessing this is engine not running?
    23 - closed throttle TPS higher or lower than expected
    10 - spacer code, this appears between key on, engine off codes and stored codes
    94, 44 - smog pump inop
    34 - EGR position sensor above closed limit
    13 - cannot control RPM during low-rpm self test (this is only an engine running code)
    74 - brake on/off switch not activated during self test / user error (also engine running code)

    Of that, only the TPS one will make the CEL come on. Fix that, clear the codes, see what comes back. Fair chance the idle code will go away. If the TPS is out of range because the throttle plate is jacked open, that will explain the idle problem as well as the TPS code.
    34 can be a nugget of crap under te EGR valve that hangs it open, can also be a bad sensor. If its only a CH out of range and the valve is shut, you can pull the sensor and file the end of it a little to get it back in range.
    74 - stomp the brake pedal after you start the test and the idle kicks up.

    http://www.grandmarq.net/oldfuelinjection/page14.html


    As for the lights, I'm a conventional sealed beam guy, but a huge convert to the school of proper headlight alignment and relay harnesses.
    Wow thanks gadget for all the info Iíve been trying to fix that dam cel for a while now even took it to a local mustang shop and they couldnít figure it out. Ima buy a new one today or tomorrow I hope thats it. Is there a way to test if the tps is bad I want to make sure itís that. Or is there a way to adjust it

  16. #16
    I'm an air-conditioned gypsy gadget73's Avatar
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    Its not really adjustable, but you can modify it. First thing to do is figure out if the throttle body screw is turned in too far. Unplug the idle control motor and see what it idles at. It should be around 500 rpm. If its above that, back the screw out until it idles down.

    Once the throttle is known to be in the right area, poke a voltmeter into the TPS connector from black to green. The OK range is something like 0.8 to 1.2, but usually aiming for as close to 1.0v as practical is advised. If yours is just totally wrong and the TPS is good, you can file out the two holes where the screws pass through to turn them into slots that will allow it to rotate. Make sure the two little ears in the TPS that engage the flat part on top of the throttle shaft are not broken. You'll usually see low voltage and it won't increase when the throttle is opened if those are broken. When you put the TPS on, you'll usually need to install it with the mount ears in-line with the intake and rotate it to line the screws up. You should feel when the TPS contacts the ears by the bit of extra resistance rotating it.

    Mustang shops should know this. Its all the same stuff on the Fox cars.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

  17. #17
    Member Elias's Avatar
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    Okay so I measured it and its ready between 0.61 and 0.62 im guessing the tps sensore is bad

  18. #18
    Member Elias's Avatar
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    I bought a new one and now it’s reading at 0.98 cel is still on but it does seem to ideal better

  19. #19
    Member Elias's Avatar
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    Checked for codes again and now im only getting
    94
    44
    34
    But car been stalling sometimes for no reason still.
    Last edited by Elias; 03-16-2019 at 05:13 PM.

  20. #20
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    Have you cleaned the throttle body with throttle body cleaner?

    This will not fix the remaining codes.
    "X" car 89 Colony Park LS Mods>Engine delete, SS duals magnaflow hflow cats, 2010 Must GT mufflers, auto air shocks, Posi, Tran cooler, big front brakes, 03+ rear disks, Large 3g alt, Tripminder, GS grill, 86 seats, 16" HPP wheels, winter boots=96 Cartier wheels, 215-65/16 Goodyear ULTRA GW3 snows, pi rear sway, alum driveshaft.
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