Question about Lincoln Continental

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I have a 1996 Lincoln Cont. it will crank and fire most of the time but sometimes it will not fire I have replaced the ignition coil, coilpacks, and idle air motor, the alternator is relatively new. I need to know why it cranks and fires most of the time and on occasion will not fire. when it does start it will get me to where I am going. But it is a guessing game of it will start when I shut it off.

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  • Leanna Cundiff Mar 09, 2009

    has had diagnostic test with a computer

  • Leanna Cundiff Mar 09, 2009

    I work twelve hours and when i get off work it wont start on occasion. I forgot to include that the fuel pump has also been replaced. It does start most of the time but on occasion will crank but will not start. As far as hot or cold it has mostly been when the engine is cold. When it runs it runs like a champ but it has had times where it has messed up on the dashboard like it telling me its making 19 miles per gallon and then it will go up and down from ten to sixty

  • Leanna Cundiff Mar 09, 2009

    It does crank all the time the diagnostic tests said everything was ok it just dont fire randomly it fires more than it dont

  • Leanna Cundiff Mar 12, 2009

    also when it does start after it hasnt started it will reset radio to a.m. off of cd and the driver seat will lose preset and also the speedometer and other gauges on dashboard will be dim and after driving for a while will brighten up.

  • Leanna Cundiff Mar 12, 2009

    also sometimes the driver seat will move forward to driver presets when key is put in ignition and back itself all the way back when u turn the car off and sometimes it will not. I'm trying to provide u all with all info i can including all the cars quirks wondering if they are all related to same problem with car not starting

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10 Answers

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  • Lincoln Master
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Have u tested and verified that u have fuel pressure when u have the crank no start? based on my 20 years Ford dealer experience it sounds like a sticky fuel pump.

Posted on Mar 09, 2009

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  • Master
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The problem is "Spark plug".........


Change it and it would solve your problem.


Thanks for using Fixya.

Posted on Mar 09, 2009

  • taran_2005
    taran_2005 Mar 15, 2009

    Do check spark plug and let me know



    Thanks,

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  • Lincoln Master
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If you have already replaced the ignition coil, coilpacks, and idle air motor, if it does not ignite check the ignition switch and relay (or multi relay).
If it ignites buut does not crank , check the air intake temperature sensor and AIF sensor.

Posted on Mar 09, 2009

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Hi, Mtoddvan here I will try & help.

Do you notice the weather when it acts up? Sounds strange I know but I am Guessing your crank shaft sensor is cracked.

You will find sensor on front of motor by your main flywheel pulley it will have wires leading from it check connections make sure they are tight & if there is any oil, grease or lot of dirt moisture around sensor. Clean off if you can be careful though no power tools or heavy abrasives or chemicals.
This is how it works your motor turns & the flywheel pulley spins It has magnets in it that the crankshaft sensor picks up when they pass the sensor. The sensor sends info to computer & tells coil pack fuel injectors when to fire & open & close.
Now if you had a lighting strike close to your car or the sensor is cracked if it is damp or hot the sensor can & will fail sometimes. Given time to Cool off or dry out it will work for a while.

Replacing sensor is not very hard But you have to have separation from pulley & you can not be to far away. You can use a quarter to measure gap but best done with feeler gauge set to manufactures specs.

Hope this helped ! please rate. I'll standby if you need more help. Good Luck!

Posted on Mar 09, 2009

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  • Lincoln Master
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Ok what usually causes this on this vehicle is a poor connection at the female terminals at the Crankshaft Position (CKP) sensor connector terminals.
When it cranks but does not start here is how to tell if the crankshaft position sensor is the problem. When you turn the ignition to the run position the check engine light should illuminate.When you turn it to start while the engine is cranking it should go out for a few seconds(while cranking) then come back on(while cranking).If it comes back on while cranking then the computer is seeing the signal from the crankshaft position sensor,if it does not then it doesn't and you know this is your concern.
It could be either the terminals at the connector and or a bad sensor. It mounts beside the crankshaft pulley. It will be a 2 wire connector and sensor is close to the teeth on the pulley.
Ford has a Technical Service Bulletin out for this concern,the number is 97-24-10

Posted on Mar 09, 2009

  • Chuck Martin
    Chuck Martin Mar 09, 2009

    Sometimes you can wiggle the harness to the sensor and get it to crank and/or act up.

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Just to make sure, it does crank all the times you try to start, it's random to fire up? By fire you were not specifying misfires were you? Did the diagnostic test show everything to be ok.

Posted on Mar 09, 2009

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Replace the distributor cap and rotor; during which time, check the ignition wires

Posted on Mar 09, 2009

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  • Master
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I WOULD CHECK THE FUEL PUMP PRESSURE ,IT SHOULD BE AT LEAST 35PSI YOU REPLACED THE COILPACKS WHAT ABOUT THE SPARK PLUGS? ALSO CHECK THE COMPUTER RELAY. IM SORRY WE ALL MIGHT NEED A LITTLE MORE INFO, LIKE WONT START HOT OR COLD ! AFTER IT SITS ?

Posted on Mar 09, 2009

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  • mike loshbough
    mike loshbough Mar 09, 2009

    how old are your spark plugs?

  • mike loshbough
    mike loshbough Mar 11, 2009

    it sounds like your ecc relay auto zone will have it in stock and also a diagram for this

  • mike loshbough
    mike loshbough Mar 12, 2009

    check your fuse links when you lose your radio you are losing the voltage to the computor or ignition module.the links are located off the positive battery cable and off the solenoid.

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You may have one of the wires worn through and grounding itself which would cause the misfire here and there.

Benjamin

Posted on Mar 09, 2009

  • Benjamin Patri
    Benjamin Patri Mar 09, 2009

    I would also look into the crank case sensor and the fuel filter if the wires aren't grounding

  • Benjamin Patri
    Benjamin Patri Mar 09, 2009

    When it is cranking over, and not starting, have you checked for spark at the spark plugs and also have you checked for fuel pressure? I would think that it may be the fuel filter as other lincolns have had this problem and the fuel filter or the crank case sensor has been found to be the problem

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  • Master
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Hi!

Use a multimeter and Check for voltages between the terminals. Also check for battery connections.

Posted on Mar 09, 2009

  • Rylee Smith
    Rylee Smith Mar 09, 2009

    What code did you get with the diagnostic test?

  • Rylee Smith
    Rylee Smith Mar 09, 2009

    Have you checked the neuteral safety switch behind the clutch pedal?

    Also check the ignition relay.

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