Announcement

Collapse
No announcement yet.

High fuel consumption

Collapse
X
Collapse
 
  • Page of 3
  • Filter
  • Time
  • Show
Clear All
new posts
Previous 1 2 3 template Next
    #1

    High fuel consumption

    Ok, the Merc is relly starting to suck the gas down, more then it normaly does, i went 15 mins out of town with it and it used over 1/4 tank, when before it might only use half that. i just filled it up tuesday nite and the low fule light is alredy on, and i havent even driven that much, any tips on what to do to get my MPG back up,
    Here is a list of everything i have done..
    New cap and rotor,
    New plug wires
    New spark plugs
    New fuel filter.
    It has just started this and also sometimes when idleing it starts to stumble and when i go to pull away feels like its only running on a few cylinders then clears up, like its flooding itself out, but it only does this once and a while
    Tags: None
    #2
    check the timming, vac lines and whats the Ks on that car? does it look like its ever had a carb rebuild? might be time for one.

    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

      #3
      oh, make dure your choke aint sticking and make sure everything is smooth and free...im sure this is a 2150 motocraft?

      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
        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

          #5
          Originally posted by marquisman View Post
          oh, make dure your choke aint sticking and make sure everything is smooth and free...im sure this is a 2150 motocraft?
          yes its a 2150 motocraft

          Comment

            #6
            sounds like sticky choke or internal carb leakage. Leaky needle/seat assembly will do this. Carb rebuild probably is a good idea. Its fairly simple and the kit should be pretty cheap.
            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
              ok, ill see if i cant pick up a kit and rebuild it this weekend. i have about 5 extra carbs, but they are probly no better then the one thats on it now

              Comment

                #8
                How does a leaky needle-and-seat cause excessive fuel consumption? Does it allow the level in the float bowl to get too high and force too much fuel through the main jets?
                2012 Mazda5 Touring | Finally working on the LTD again!

                Comment

                  #9
                  i did advance the timing not long ago, would this have any affect on this, or would it make the mpg better?

                  Comment

                    #10
                    i may also try to adjust the needles, drivers side is fuel and pass side needle is air, correct? i have a rebuilt Holley 2 bbl, but id dosent have the right attachments for the TV rod, and throttle cable, seeing as it was off my 59 Edsel, i know its rebuilt seeing as how i rebuilt it myself. unless i can get adapeter parts for the throttle and TV rod??

                    Comment

                      #11
                      the rebuild kit retail will run you about90-100bux for the 2150, thats why i ditched the one from the lincoln and got a replacement holley for a 100bux at the swap meet. the jets on the bottom are for each venturi, you can set them at the starting adustment and go from there tuning each on, one at a time. if you are extreemly careful, and i mean extreemly, tou can take the top air horn off the carb and see if the bowl is dirty...but still say get the kit and rebuild lol

                      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

                        #12
                        Interesting. What's in the $90 2150 rebuild kit that wasn't in the $16 GPSorenson kit I bought once?
                        2012 Mazda5 Touring | Finally working on the LTD again!

                        Comment

                          #13
                          couple gaskets, neadle, seat, accelerator, float...nothing special, we get raped here with that shit

                          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
                            I'll say it since no one else has yet...

                            oxygen sensor.
                            1984 Ford Crown Vic LTD, The Murphmobile (RIP)
                            1985 Ford Crown Vic LTD, The Murph Deuce (SOLD)
                            1978 Chevrolet Caprice Classic, The Crapiece (current project)

                            Comment

                              #15
                              Originally posted by murphmobile2 View Post
                              I'll say it since no one else has yet...

                              oxygen sensor.
                              heheh ... here in the real world, oxygen sensors don't exist!
                              2012 Mazda5 Touring | Finally working on the LTD again!

                              Comment

                              Previous 1 2 3 template Next
                              Working...
                              X