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    Car keeps jerking/stuttering

    Ok so to start it off I have an 03 grand marquis about 106,000 miles. Sometimes when I accelerate up to like 50mph my car starts to like jerk or stutter a bit but after I push the gas some more it accelerates and rides fine. Also happens when I slow down a bit and then hit the gas it stutters more.

    This is what I've done to the car since this started:
    New Tires
    New Spark Plugs
    New Fuel Filter
    Oil Change
    Air Filter

    Suggestions?







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    Re: Car keeps jerking/stuttering

    j0o has video of this?



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    Re: Car keeps jerking/stuttering

    Transmission Clutch Solenoid?




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    Re: Car keeps jerking/stuttering

    You're scaring it. Drive more sensibly.




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    Re: Car keeps jerking/stuttering

    why dont you just ask it whats wrong, if it's screwing up then it's most likely throwing a code.




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    Re: Car keeps jerking/stuttering

    i have a very similar problem and i'm going with faulty fuel pump. i haven't fixed it though, so i'm not 100%

    but you should have a code. i dont because my chip eliminates the CEL so i dont get codes



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    Re: Car keeps jerking/stuttering

    go to autozone; theyll run the codes for free; just dont trust what they tell you to fix it



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    Re: Car keeps jerking/stuttering

    Yea I tried the code thing at a shop nothing came up. My check engine light did come on before and my car stopped but then I turned it off and turned it back on and it went away so I took it to the shop that same day and tested it and nothing came up. This *****




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    Re: Car keeps jerking/stuttering

    Bad fuel injectors

    Was it an old Police car?



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    Re: Car keeps jerking/stuttering

    Quote Originally Posted by John3000 View Post
    Bad fuel injectors

    Was it an old Police car?
    a marquis?



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    Re: Car keeps jerking/stuttering

    Something with ignition is my guess.

    Its it seems like a real fast break up.

    Did it do it before you did the stuff you did?

    Put old wires back on if it didn't and see



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    Re: Car keeps jerking/stuttering

    Quote Originally Posted by John3000 View Post
    Bad fuel injectors

    Was it an old Police car?
    not a vic'




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    Re: Car keeps jerking/stuttering

    prob transmission if no codes are being thrown.




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    Re: Car keeps jerking/stuttering

    Stuttering can be a large range of problems. When my car did it, it was a combination of two things:

    1) Vacuum leak in the intake manifold
    2) Faulty oxygen sensor



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    Re: Car keeps jerking/stuttering

    Quote Originally Posted by snoopdan View Post
    prob transmission if no codes are being thrown.
    This is what I thought...and the fact it is based on speed. It could possibly be ignition coils, but I am betting on the transmission solenoid because it is around where the tranny shifts. There is a thing called the TCC solenoid that goes bad. Another problem it has when this is going out is starting again after getting off the interstate. It "acts" as if the car is still in 3rd, 4th or whatever.




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