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Still have an annoying hesitation in the engine

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    #1

    Still have an annoying hesitation in the engine

    Ok, I have put in a new cam/lifters, a new distributor cap/totary button and the car STILL has a hesitation...Only when the car is in motion...Whe you give her the gas she sort of hesitates, then if you dont either let off or push the pedal farther down she will quit....IDK...Just wonderin if anyone had any info on the lil problem...I DO know a new Edelbrock 4bblis goin on there in the next month....

    thanks all-

    -Wes
    sigpic1991 Crown Vic 351w 5.8L
    Tags: None
    #2
    Accelerator pump probably isn't working. When's the last time the carburetor was rebuilt?

    2001 Ford Crown Victoria P71 - "The Fire Engine"
    1985 Lincoln Town Car Signature Series
    But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8

    Comment

      #3
      sounds like accelerator pump or rich or choke

      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

        #4
        Are you running a VV or a 2150? 2150 I'd say accelerator pump is shot. VV doesn't have one, they're just bizzare.
        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

          #5
          my lincoln did that when i bought it, but it had a 2150 , and pissed me off, found out it was the accelerator pump

          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
            Originally posted by gadget73 View Post
            Are you running a VV or a 2150? 2150 I'd say accelerator pump is shot. VV doesn't have one, they're just bizzare.
            It most certainly does have an accelerator pump...

            He's running a 2150, though, now that you mention it.

            2001 Ford Crown Victoria P71 - "The Fire Engine"
            1985 Lincoln Town Car Signature Series
            But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8

            Comment

              #7
              Originally posted by Nathan in MN View Post
              It most certainly does have an accelerator pump...

              He's running a 2150, though, now that you mention it.
              they do? i could have sworn they used some enrichment diaphram thing in place of the pump, or is that the replacement for the choke that i'm thinking of?
              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

                #8
                Yeah, there's a cold enrichment system instead of a choke. Accelerator pump is still there.

                2001 Ford Crown Victoria P71 - "The Fire Engine"
                1985 Lincoln Town Car Signature Series
                But God demonstrates his own love for us in this: While we were still sinners, Christ died for us. Romans 5:8

                Comment

                  #9
                  Get an edelbrock 4bbl carb. They worked great on all the small block ford trucks around here.
                  YouTube. FaceBook Crown Vic Group

                  Comment

                    #10
                    I agree with everyone here. My friend had an 86 Celebrity 2.8 and the car would hesitate during acceleration, you would sort of have to feather the pedal to get it going. If you made the mistake of pushing it too far, it'd bog or just stall. It was of course the accelerator pump. Probably time to rebuild the carb.
                    sigpic
                    1986 Grand Marquis LS 2 Door
                    Ext: Medium Shadow Blue Metallic, Int: Midnight Blue, 3.08 open, 235/70/15 Goodyear Aquatread III, Rebuilt AOD w/ Transgo Shift Kit, 3G upgrade from 95 5.0 Mustang, Walker Dual Exhaust w/ H pipe, Viper 5900ST alarm, De-smogged, Rear Civ. Sway Bar, and more.

                    Comment

                      #11
                      Or buy a new one
                      YouTube. FaceBook Crown Vic Group

                      Comment

                        #12
                        we told him months ago to rebuild the carb

                        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

                          #13
                          its damn expensive to rebuild these 2150s , ive rebuilt 4 of em and the kits were all around a hundred bux no matter where i went.

                          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

                            #14
                            that's cause you live in canadia........42 bucks here

                            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

                              #15
                              351wcrayz, if I buy a certain S10, I'll sell you all the parts I have to do the 4bbl swap (which I won't need if I get the S10). I have the carb, throttle cable, AOD kickdown, ignition control module, and all the other small stuff. I also have the EGR plate and valve you need if you want to retain EGR.

                              I'd go with the 4bbl over the rebuilt 2150. The swap isn't that hard, and you may even pick up some performance.
                              **2012 Ford Mustang Boss 302: 5.0/ 6 spd/ 3.73s, 20K Cruiser
                              **2006 MGM,"Ultimate": 4.6/ 2.73/ Dark Tint, Magnaflows, 19s, 115K Daily Driver
                              **2012 Harley Davidson Wide Glide (FXDWG):103/ Cobra Speedsters/ Cosmetics, 9K Poseur HD Rider
                              **1976 Ford F-150 4WD: 360, 4 spd, 3.50s, factory A/C, 4" lift, Bilsteins, US Indy Mags, 35s Truck Duties

                              Comment

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