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1986 Grand Marquis Engine Keeps Dying While Starting and Switching Gears

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    #16
    Ah! Thank you for that! Very helpful!

    I'll check that out today.
    1986 Mercury Grand Marquis 5.0 LS, named "Ulysses "

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      #17
      Originally posted by WilliamFredrickson View Post

      Yeah, I think I'm going to replace all the lines that come off the spark plugs... plugs are good, just under a year old... but I've noticed some chuncky white crud in the lines where they connect to the spark plugs
      Now, do you mean right where the boot of the spark plug wire attaches to the plug? Because if that's the case, it might actually be dilelectric grease.

      If you do go ahead with replacing the wires, I recommend to not go for the cheap brand, as they will crap out on you fast. Spring for the Belden, Bosch or even stock replacement motorcraft wires. Just my Just going from experience, if you want something to last, spring for the better quality part, even if it's more expensive. Unless you really can't afford it.
      Last edited by 86VickyLX; 11-12-2009, 11:58 PM.

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        #18
        Originally posted by 86VickyLX View Post
        Now, do you mean right where the boot of the spark plug wire attaches to the plug? Because if that's the case, it might actually be dilelectric grease.
        It's inside the rubber part of the spark plug wire... all over this circular metal part...
        1986 Mercury Grand Marquis 5.0 LS, named "Ulysses "

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          #19
          Could be dielectric grease. It keeps the boots of the wires from sticking to the plug insulator, and it also helps seal out moisture. I use that whenever I change wires.
          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

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            #20
            That's what it sounds like. If you go ahead and replace the wires, be sure to put that stuff back on.

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              #21
              Well, I got a new IAC valve, and cleaned off the ATC... and...

              Success!

              Looks like the stalling problem is fixed... for now at least!

              Ha, but almost as soon as I got that fixed, it seems like I've developed an electrical problem... but I'll post about that later in the proper forum.

              Thanks for all the advice! I appreciate it!
              1986 Mercury Grand Marquis 5.0 LS, named "Ulysses "

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