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    Engine miss...

    On the way to work this morning, I started to have a problem... I started to have what felt like a dead miss on one cylinder... Or possibly maybe a problem with the engine computer? Never had this happen before... it was very pronounced when it did it... Almost like it was going to quit on me... Anyone ever had a computer go out like this? I have had them just quit, and then not restart... I am stuck at work right now so i have not been able to go out and look at it... I'm going to check the spark plug cables etc when I get home tonight, (IF I get home ok!) and see if one is bad, or touching an exhaust manifold or something.... I may just need new cables, or cap and rotor button...

    Tom...


    Agent Caitlin Todd… You know Tony, Statistics show that married men live longer…
    Agent Tony DiNozzo… It only seems longer….

    http://www.tomspolicecars.com/

    #2
    Is it raining? I had problems like that when I first got my car, it was a bad set of wires. Corroded coil tower or failing coil could do this too. Usually the very last thing I'd suspect is the computer, its probably the most reliable part of the motor.
    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

    Comment


      #3
      I had something like that happen, turns out it was a hose that cracked and was leaking water onto my distributor...but yeah I'd check wires, cap, rotor...and related parts

      4thPanther..03 MGM LS
      previous panthers: 87 MGM, 85 CV 2 DOOR, 89 MGM.

      Comment


        #4
        Sounds like the diddly-do on the distributer. Someone help me out I can't remember the name of it.
        1984 CV tudor 351W, 4bbl, 5-speed best time in the 1/8 8.39 at 80 with 1.80 60ft time.
        2006 P71, 1988 Bronco II, 1986 Baby LTD(5.0 & T5 swap in progress), 1976 16' Hobie Cat, 12' AquaFinn
        http://www.cardomain.com/ride/2651997 UPDATED 20100826
        sigpic

        Comment


          #5
          which diddly-do are you referring to? cap, rotor, pickup, or TFI module?
          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

          Comment


            #6
            Well, it was a combination of things...

            1. one of those plastic vacume lines near the back of the intake had dry rotted and broken in two...

            2. The air intake hose from the airfilter box to the FI intake was kinked... so it wasn't getting enough air into the intake. He said it probably just vibrated areound like that, as the hose was sort of loose... guess the last mechanic that worked on it forgot to tighten it down...

            3. Got a tank of bad gas... Put some Lucas gas treatment in it.. The bucking and missing had cleared up by the time I got home... Amazing stuff!

            This Sun, Mon, Tue I am off... (WAS going to go to Chicago, but cancelled the trip since they are predicting heavy snow... Don't want to get stuck there... have to be back here on Christmas Eve day to work... and Christmas day... It sucks... but I get close to $32.00 an hour! Besides, all we will do is eat and watch TV.. As the base is shut down..) So one of the days off I am going to go ahead and do a complete tune up on it--- Cap, rotor, plugs, wires, and probably new belts. For the rest of the winter, and summer... or at least until I get the new engine put in it...


            Agent Caitlin Todd… You know Tony, Statistics show that married men live longer…
            Agent Tony DiNozzo… It only seems longer….

            http://www.tomspolicecars.com/

            Comment


              #7
              My car used to do that shit. Combonation of a bad plug and clogged injector. So I ran it on almost straight injector cleaner and changed the plug. No more issues for me.
              1989 Grand Marquis LS
              flat black, 650 double pumper, random cam, hei, stealth intake, Police front springs, Wagon rear, Police rear bar, wagon front ,exploder wheels, 205/60-15 fronts 275/60-15 rears, 1 5/8" headers, 2.5" offroad x pipe, Eclipse front bucket seats, Custom floor shifter, 4.10 gears, aluminum driveshaft and daily driven. 16.77@83mph

              Comment


                #8
                Well, it runs ALOT better now... still a little bit of a "miss" when idling... But I think that is the plugs/ wires/ cap... (One of the three!) So it should clear up after the tuneup...
                Also, I finnally got the PCV screen changed out a couple of weeks ago... It only took about 3 hours to get the old one out, even with the breakfree! It was in there! We destroyed the old one getting it out.... it was a mess... and severly clogged up! So we used some of the antiseize on the outside of the new one... to TRY to keep the new one from being so hard to get out next time I change the pcv... (I'm going to start changing both out at the same time)
                I also noticed that the oil is not leaking out of the top of the timing case cover anymore... it was seeping out, and then dripping down into the "valley" in the timing case cover... So there was always oil laying on top of the cover... well, it is gone, and no longer leaking! (less pressure in the engine??) Also, not as much blow by when you take the oil cap off when the engine is running... it was like a cloud of smoke when you took the cap off while it was running! Another thing is the tube that runs from the side of the oil fill over to the intake is no longer feeding oil to the intake at the butterfly... So it staying clean now... used to have oil laying on the bottom of the intake at the butterfly all the time...

                Tom...


                Agent Caitlin Todd… You know Tony, Statistics show that married men live longer…
                Agent Tony DiNozzo… It only seems longer….

                http://www.tomspolicecars.com/

                Comment


                  #9
                  there is always pressure in the engine, the PCV is supposed to relieve it. If its clogged, it comes out in other places, like the oil cap and in the form of leaks. Now that the screen isn't clogged it will actually pull air through the throttle body instead of pumping oil fumes up there.
                  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

                  Comment


                    #10
                    Finnally got the tune up done on Friday... When I changed the plugs out, the two we put in right after the PCV screen change, and fuel pump, were still pretty clean... However, two of the plugs that fire one behind the other in the firing order on the other side of the engine were massively fouled... one had so much it was completely bridging the spark plug gap... So with one missfiring right behind the other... That was the reason for such a bad "Miss"... Also the cap center contact was burned, as was the rotor button contact... So that was needing to be changed out... The plug wires didn't look too bad... but I did not want to take any chances, and changed them out too... Besides... They were lifetime warranty, so it didn't cost me anything, anyways... I also changed the fuel filter just because of the possibilty that I got that one bad tank of gas, that we thought started all of the problems to begin with...

                    So, we concluded that the PCV screen / PCV valve / fuel pump change out solved alot of problems... one is the plug fouling problem I was having before... As the two plugs that used to foul in about two weeks were now clean after about a month of driving... I guess we should have changed all of them out then, but the rest on that side were still clean, so we figured we didn't have to worry about it, since the other side was the side that usually had least amount of fouling when we changed out spark plugs... (About once a month before!) So it was a good test "baseline" to compare with the other plugs... So now that I longer have any leaks... (the timing case cover used to wheep oil from around the top) Also almost no blow by... used to take the oil cap off to put oil in, and it would smoke heavily out of the oil fill, from the blow by. So that is no longer doing that either... I guess now I will see how long the plugs will last, at least until I get the new engine put in! (Hopefully in the next few months!)


                    Agent Caitlin Todd… You know Tony, Statistics show that married men live longer…
                    Agent Tony DiNozzo… It only seems longer….

                    http://www.tomspolicecars.com/

                    Comment


                      #11
                      Plugged PCV screen increases blowby, so that will contribute to plug fouling. You might find that engine is still in good shape internally.
                      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

                      Comment


                        #12
                        Yes, Except for the knock in the lower end when you start it up when it is cold... Goes away after about a block... I just can't trust whether it will stay together any length of time, Especailly since it is my daily driver... AND I go on alot of long trips with it... like this coming July, to the Chicagoland Emergency Vehicle Show.... So a new engine is just got to happen soon... Guess I'll go with the 302 again... (See other thread) Except maybe a roller rocker motor.. since they offer that as one of the replacement 302's for this car.... At least for right now.. it is running like new!

                        Tom...


                        Agent Caitlin Todd… You know Tony, Statistics show that married men live longer…
                        Agent Tony DiNozzo… It only seems longer….

                        http://www.tomspolicecars.com/

                        Comment


                          #13
                          oh the death knock. You should be good for another 100k or so. Fords need oil flow, not oil pressure. As long as the replace engine light isn't coming on at idle I wouldn't pay any mind to that.
                          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

                          Comment


                            #14
                            Well, like I have said before... I am proactive with my cars not reactive... Another words, I don't wait until they die on the side of the road half way to Chicago... I didn't even do the EVOC course this year at Chicago, I was afaid something would break... and it is a long way to tow the car back to Florida! Also, this is my daily driver... so I want it to be very dependable....

                            Tom...


                            Agent Caitlin Todd… You know Tony, Statistics show that married men live longer…
                            Agent Tony DiNozzo… It only seems longer….

                            http://www.tomspolicecars.com/

                            Comment


                              #15
                              Switch to a FL-400 filter and the death knock will more than likely go away.
                              1989 Grand Marquis LS
                              flat black, 650 double pumper, random cam, hei, stealth intake, Police front springs, Wagon rear, Police rear bar, wagon front ,exploder wheels, 205/60-15 fronts 275/60-15 rears, 1 5/8" headers, 2.5" offroad x pipe, Eclipse front bucket seats, Custom floor shifter, 4.10 gears, aluminum driveshaft and daily driven. 16.77@83mph

                              Comment

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