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Fuel Pump or Carbeurator?

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    #1

    Fuel Pump or Carbeurator?

    Hi. I was at a red light and the engine died. It refused to start until after I let it sit for 5-10 minutes, and then died about 2 minutes later going 50KPH.

    It restarted after a few minutes, and I pulled over to let it idle as I had drained the battery while screaming at the top of my head. I opened the door and the engine died again. After a few minutes, it started, and idled for 15 minutes with no issue, then I put it in drive and it died after moving 50 feet.

    After a minute of letting it sit it started and this time it drove the rest of the way home (aborting my attempt to go downtown to get pizza), and I let it idle for 10 minutes after parking the stupid thing. With much fear and loathing I turned the car off and plugged it in, doubtful if it will ever run again.


    So do I have a bad fuel pump, or a bad carbeurator? Perhaps my engine is ruined.

    I plan to take it in for a winterization Monday anyways, so maybe I can get this silly issue resolved too.

    Thanks.
    Tags: None
    #2
    Was it really cold when all this was going on?
    If so, try heaving a bottle of gas-line anti-freeze in the tank. Might just be condensation in the fuel lines.
    Check to make sure your fuel filter isn't clogged first. Cheapest stuff first.
    Good luck with this. I remember swearing like a psycho at my 351/carburetor 89 Grand Marquis back in the day for similar inappropriate behaviour.
    Summer car-> 1988 Lincoln Town Car, triple blue, 335,xxx km. New HO 5.0 in and running. Bought 2006/08/22. June 2017 PotM!
    Winter vehicle-> 1995 Ford F-250 XLT SuperCab 4x4, 284,xxx+km. AKA "Brutus" 460/E4OD/4.10 axles and 12 MPG. Bought 2019/08/14

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

    Comment

      #3
      Originally posted by nfldfordltd View Post
      Was it really cold when all this was going on?
      If so, try heaving a bottle of gas-line anti-freeze in the tank. Might just be condensation in the fuel lines.
      Check to make sure your fuel filter isn't clogged first. Cheapest stuff first.
      Good luck with this. I remember swearing like a psycho at my 351/carburetor 89 Grand Marquis back in the day for similar inappropriate behaviour.
      It's been -25 the past few days.

      The fuel filter is overdue for replacement.

      I figure it's a fuel issue, but I dunno.

      Comment

        #4
        fuel or fire. Next it won't start, see if its got spark. I've seen electrical things get flaky like this. usually when fuel system parts stop, they just stop. Ive had weak fuel pumps that would work enough to idle, but not much else. I have never had one work, die for 10 minutes, then work again for a while. If its an electric pump, that might be another story but mechanical pumps don't fail like that. Carbs don't really "die" so much as they gradually clog up. I've never seen one magically clog and un-clog after waiting 10 minutes either. Fuel problems also tend to not just shut the engine off like you're describing. its more of a lingering death. Electrical thing that cause it to lose ignition are what shuts the motor down suddenly.
        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

          #5
          Could it be the spark plugs are finally dying? They've been in the engine for 3 and a half years.

          Comment

            #6
            plugs don't go bad and come back to life either. They might cause a miss but it won't just shut off and not re-start.
            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
              That is kinda what my 83 MGM does. It stops when it feels like it. Not always easy to restart. I know it is electrical, I just do not know where. Hundreds of dollars spent for nothing as no one has fixed it. I wish I was close to an auto electrical expert.
              Hard to enjoy a car when you do not know when it will quit then won't restart.

              Comment

                #8
                Mike, please clarify if you car is a 7200 VV equipped 5.8? I had this exact thing happen to me and it progressively got worse. Luckily I had a spare ignition module (three wire yellow grommet model) and swapped it out. Fixed the problem. On a side note, if the engine mounted fuel pump is getting weak. Depends on whether the car appears to loose power and cut out as if it ran out of gas. I've had both issues with these cars. If it just instantaneously cuts off, I'd go for the Ignition module.

                Comment

                  #9
                  It is a 5.8 but I had the carbeurator replaced a couple years ago.

                  Is the ignition module the thing that runs from the battery to the passenger fender?

                  Comment

                    #10
                    Well I started the thing up this morning and it fired up and ran. "Last night? What are you playing at, Willis?" it said to me. It tried to convince me to take it for a quick drive to AMA to get a membership, but I didn't trust it and so after idling it for 20 minutes I shut it off and walked in the frigid cold to AMA and got a membership.

                    It was glaring at me as I walked back up to the apartment building.

                    So yeah, maybe it's the spark computer?

                    Comment

                      #11
                      Not on the PS. On my 5.8s, the ignition module is on the driver's side mounted on the forward side of the inner fender in the engine bay. The retaining bolts (3) must be removed from the outside of the engine bay under the wheel-well. The ignition module has three wiring harness connections and the MAP sensor is mounted to one of the retaining bolts.

                      Comment

                        #12
                        Originally posted by P72Crazy View Post
                        Not on the PS. On my 5.8s, the ignition module is on the driver's side mounted on the forward side of the inner fender in the engine bay. The retaining bolts (3) must be removed from the outside of the engine bay under the wheel-well. The ignition module has three wiring harness connections and the MAP sensor is mounted to one of the retaining bolts.
                        Could I trouble you to show me a picture of it?

                        Comment

                          #13
                          Camera battery is kaput and won't charge. Look up BWD Part No. CBE19P on Advance Auto, O'Reilly, or your favorite parts store.

                          Comment

                            #14
                            Would the ignition module also be known as the spark control computer, the 5" square silver box thingy (aka "Duraspark")?

                            Comment

                              #15
                              yes, the Duraspark box.
                              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

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