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few problems, Stalling..

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    #1

    few problems, Stalling..

    I would like to try and correct these problems before/if they escalate.

    The problems..

    I dont know if they are related but there are 2 problems and they trade off depending on the temperature.

    When its cooler the marquis seems like it always wants to drive itself, I have to ride the brake down my ally because I will constantly accelerate if I dont. If im at a red light I have to press the brake hard to stay stopped. When I take my foot off it starts to go immediatly.

    Now on a hot day, and after it heats up it stops driving itself, but it tends to stall alot when I stop. I will be at a red light and if im there long enough the engine will rev up and die down alot untill it just dies.

    Any ideas? :drug:
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    #2
    what year is your vehicle?
    Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
    'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
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    85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereo

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      #3
      Sounds like a CFI Pete we can help him if it is lol
      The Best
      Past and Present Any Questions...................

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        #4
        Mine likes to go by itself and keep goin when its not warmed up, too. Sometimes when it is, also...
        '89 Ford LTD Crown Vic - '92 Ford F-150 Custom -
        '95 Ford Bronco XL -

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          #5
          Vacuum leakage. I'll bet a dollar. Bad vac line to the MAP sensor also will make it do stupid stuff.
          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

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            #6
            Its an 87 marquis, shoulda mentioned that...

            Vac leak.. well its nice to hear someother ideas, I have replaced both the oxygen sensors from some friends advice.. did nothing.

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              #7
              Idle Air Controle Valve (IAC)!!! It's a cylinder like thind on the back side of your throttle body, only two bolts and it comes off.
              I had mine go bad and the car would idle very high...like 3000rpm. So when driving if this problem happened it would idle at about 55mph. Everything was exactly the same as you described. If it does it again take it out of gear and see what RPM is revs to. It will not overrev, so don't pannic when it goes up up up. First time it did it to me I freaked, had that "OMG IT"S GONNA BLOW" feeling. If the IAC gets stuck wide open it should only rev to around 3500, becaust the throttle is still at 0% so there should be no extra fuel added to accomidate the extra air flow.

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                #8
                People love to blame the O2 sensors...they are only there for emissions, so all they do is tweek the air/fuel ratio. If they go bad it just runs rich. So usually you only notice in the gas millage loss. It's very rare they fail in lean mode.

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                  #9
                  hmm interesting thanks alot blaze.. and now im really regreting the $140 for o2 sensors.. at least they were really shiney.

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                    #10
                    Originally posted by Ape
                    at least they were really shiney.
                    :lol: Hey that's cool too!

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                      #11
                      New O2 won't hurt you any. After a long time they become less accurate, so replacing them probably didn't do anything bad and once its running properly, it may have bought you a little fuel economy.
                      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

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                        #12
                        Ape did that fix it for you mang? You had the same prob i got's :-P
                        People should not be afraid of their governments. Governments should be afraid of their people.

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                          #13
                          Originally posted by darkknight View Post
                          Ape did that fix it for you mang? You had the same prob i got's :-P
                          Holy thread digging!

                          Dark, I don't think you have an IAC.
                          1990 Country Squire - under restoration
                          1988 Crown Vic LTD Wagon - daily beater

                          GMN Box Panther History
                          Box Panther Horsepower and Torque Ratings
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                            #14
                            Ok Tiggie thanks mang :-D
                            People should not be afraid of their governments. Governments should be afraid of their people.

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