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How to replace an ignition module?

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    #1

    How to replace an ignition module?

    Hey guys.

    My ignition module went bad, so I've got a new one. I popped the hood thinking it would be a 5 minute job. How wrong was I! The ignition module bolts are almost impossible to get to because of the thermostat housing and temp sensor.

    My question is, can the module be replaced without removing the whole distributor? Am I going to have to remove the temp sensor etc..?

    Any tips or advice would be appreciated. Thanks

    Danny

    88 GM 5.0 EFI
    2002 Mercury Grand Marquis GS 4.6L V8, 1988 Mercury Grand Marquis GS 5.0L V8, 1979 Lincoln Mark V 6.6L V8, 1977 Lincoln Continental 7.5L V8, 1999 Chevrolet Suburban LT 5.7L V8
    Tags: None
    #2
    no. The distributor needs to come out (if only an inch) to clear the pins on the module. Use something to mark the position of the rotor in the housing and the housing to the engine before removing it so that you can put it back in EXACTLY where it was. (white out pens are nice for this)

    should be pretty easy that way.

    Pop the cap off of the distributor, mark the position. Mark the position on the housing and engine. Loosen the hold down bolt enough to remove it. replace the module... and reverse. Should take about 15-20 minutes.

    be sure to put some thermal grease between the module and the mounting plate or you'll end up frying the new one.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

    Originally posted by gadget73
    ... and it should all work like magic and unicorns and stuff.

    Originally posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

    Comment

      #3
      That's the kind of info i was looking for, thanks mang!

      Danny
      2002 Mercury Grand Marquis GS 4.6L V8, 1988 Mercury Grand Marquis GS 5.0L V8, 1979 Lincoln Mark V 6.6L V8, 1977 Lincoln Continental 7.5L V8, 1999 Chevrolet Suburban LT 5.7L V8

      Comment

        #4
        if you have a timing light, I would reset the timing

        Comment

          #5
          you can, no sweat. if you mark the dissy and base at the same time with a chistle, you will be able to turn the dissy for acess to the 2 bolts that hold the TFI in place. then when done, you just align your marks in the dissy and you will be set.

          1981 Mercury Marquis Brougham 2-Door 302/ 5-speed -special blend (GMGT)
          1987 Lincoln Mark VII 5-speed (Errand runner)
          1989 Mercury Grand Marquis (Base Runner)
          2007 Lincoln Town Car Signature Limited (Hustlyn)
          2011 Ford Crown Victoria Police Interceptor (Down with O.P.P)

          Comment

            #6
            The tool I have just won't fit in there unless the distributor is out. Some of them will let you just rotate the dizzy though. Its so easy to yank and re-drop the distributor that its not really worth fighting it. Just make sure you mark the rotor position and ensure it lands there when you put it back together.
            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 grandpa spec white and cranberry

            1984 Lincoln Continental TurboDiesel - rolls coal

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

            Everything looks like voodoo if you don't understand how it works

            Comment

              #7
              Thanks for the advice guys. I haven't done the job yet and to be honest I was a little nervous about pulling the distributor. For some reason I've got it into my head that something will happen to the shaft down to the oil pump or i won't get something aligned right causing greater issues. I was actually thinking about just loosening the bolt and rotating the distributor enough that i can undo the bolts to the module and then just re-align it back in position and check the timing mark with a gun to make sure.

              Again thanks for the advice guys, really appreciate it!

              Danny
              2002 Mercury Grand Marquis GS 4.6L V8, 1988 Mercury Grand Marquis GS 5.0L V8, 1979 Lincoln Mark V 6.6L V8, 1977 Lincoln Continental 7.5L V8, 1999 Chevrolet Suburban LT 5.7L V8

              Comment

                #8
                the shaft shouldn't come out, it has a clip holding it in so it cant come out with the distributor.

                1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
                2006 Lincoln Town Car Signature. Stock for now
                1989 Ford F-250 4x4 much much more to come, sefi converted so far.
                1986 Toyota pickup with LSC wheels and 225/60/16 tires.
                2008 Hyundai Elantra future Revcon toad
                1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)

                please be patient, rebuilding an empire!

                Comment

                  #9
                  You shouldn't have to do anything but just rotate the distributor, especially if you get the little round removal tool that's got a thumbwheel.

                  Be warned. Most of the replacement modules come with dilectric grease instead of heat-sink grease. You need heat dope (like you'd put between a CPU and heatsink), not dilectric grease. Use a very fine layer.
                  Originally posted by gadget73
                  There is nothing more permanent than a temporary fix.
                  91 Mercury CP, Lopo 302, AOD, 3.08LSD. 3g upgrade, Moog wagon coils up front, cc819s in the back. KYB GR-2 police shocks. Energy suspension control arm bushings. Smog deleted.
                  93 F-150 XLT, 302, ZF 5-spd from 1-ton, 4wd.
                  Daily--07 Civic Coupe. Bone stock with 25k miles
                  Wife--14 Subaru Outback. 6-speed.
                  95 Subaru Legacy Wagon--red--STOLEN 1/6/13

                  Comment

                    #10
                    yes, i second the heat sink goop. i got some from the net and put it on the TFI on my bros lincoln. havent had an issue yet. its good stuff.

                    1981 Mercury Marquis Brougham 2-Door 302/ 5-speed -special blend (GMGT)
                    1987 Lincoln Mark VII 5-speed (Errand runner)
                    1989 Mercury Grand Marquis (Base Runner)
                    2007 Lincoln Town Car Signature Limited (Hustlyn)
                    2011 Ford Crown Victoria Police Interceptor (Down with O.P.P)

                    Comment

                      #11
                      . I haven't done the job yet and to be honest I was a little nervous about pulling the distributor.
                      Don't then, unless you have to. You will still need to mark everything (justin case might show up) as has been mentioned already. Loosen the hold down bolt and turn the distributor in whatever direction will let you get your tool in place, swap, then set the distributor back to the mark you made and done deal.

                      Alex.

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