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  1. BlueStallion5.0

    BlueStallion5.0 Well-Known Member Donator

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    ight sometimes when i get on my car feels like is kinda spudering (feels like its trying to get gas or air) really hesitent

    my neighbor said it could be my heads and my o2 sensors are shot gotta get elimanators but whats your guys opinion
     
  2. Mustangcwo

    Mustangcwo Guest

    I would not eliminate the O2 sensors. Your car will run better if it can read the output of your exhaust.

    Questions:
    How does it run at idle?
    Did you run a diagnostics on the car?
    Does it do it cold or just when it's warmed up?
    Are you running an EGR?
     
  3. Tommy

    Tommy New Member

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    check the sprak plug wires and spark plugs. Cracked ceramic on plugs can cause a mis-fire. Check for plug wires which may have come loose from the coils or spark plugs.

    I had the same feeling on the 90 Notch. Works great now.



    .
     
  4. Mustangcwo

    Mustangcwo Guest

    I would like to help, but there are so many things that can choke a car. Sensors, plugs, wires, smog devices, dirty throttle body etc. etc.

    Do a diagnostics and get the codes. It will narrow the possibilities and allow us to point you in the right direction.
     
  5. BlueStallion5.0

    BlueStallion5.0 Well-Known Member Donator

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    How does it run at idle? idles good
    Did you run a diagnostics on the car? yea came up with o2 sensors
    Does it do it cold or just when it's warmed up? warmed up

    and it doesnt seem as loud as it used to be
     
  6. BlueStallion5.0

    BlueStallion5.0 Well-Known Member Donator

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    also i usually feel it in 3rd gear around 3.4 and 4 k rpm
     
  7. BlueStallion5.0

    BlueStallion5.0 Well-Known Member Donator

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    im looking at my haynes book right now for

    hesitation or stumble during acceleration

    1. ignition system not operating properly
    2.dirty/clogged fuel injectors
    3.low fuel pressure
    4. fuel injection or engine control systems malfunction

    engine lacks power
    mainly spark plugs
    low uneven cylinder compression (hope its not that)


    im starting to think spark plugs or fuel injectors my car did like when i put fuel injector cleaner in it a week ago
     
  8. Mustangcwo

    Mustangcwo Guest

    Change the O2 sensors first. Believe it or not, that could be the entire problem. They are relatively inexpensive and easy to change. Just unplug the sensor and then unscrew them from the car.
     
  9. BlueStallion5.0

    BlueStallion5.0 Well-Known Member Donator

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    ight ill do it today i already have some from before
     
  10. kakarote

    kakarote Well-Known Member Donator

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    don't leave out the fuel filter. it causes same problem at speed.
     
  11. BlueStallion5.0

    BlueStallion5.0 Well-Known Member Donator

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    FIXED it doesn't do it almost at all thanks everyone i put on new spark plugs, fuel filter and cleaned my air filter and did fuel injector cleaner thanks again everyone for your help
     
  12. Tommy

    Tommy New Member

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    Glad it worked out!





    .
     
  13. Foxman

    Foxman Well-Known Member Donator

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    did your check engine light for o2 sensors go away... i see you didnt change your o2 sensors??
     
  14. BlueStallion5.0

    BlueStallion5.0 Well-Known Member Donator

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    not yet i got them i just havnt had time my grandma is in the hospital so im barly havin time to get on here
     
  15. sdsubzero4

    sdsubzero4 Spring Valley, CA San Diego Chapter

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    Automobile:
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    All the best to your grandmother.
     
  16. 02gt

    02gt Well-Known Member Donator

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    i feel ya man, my moms dad is on the way out, if you catch my drift....
     
  17. BlueStallion5.0

    BlueStallion5.0 Well-Known Member Donator

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    yea they found a blood cloat in her lung and leg but they gave her blood thinner so hopefully that works
     
  18. 4CEFED

    4CEFED Well-Known Member Donator

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    I would also run some seafoam through the intake manifold, the IRMC's are supposed to open at the same RPM they might be a lil gunked up, just a thought but it seems you have it worked out. I did it on my cobra and it was noticably smoother.
     
  19. BlueStallion5.0

    BlueStallion5.0 Well-Known Member Donator

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    ACTING UP AGAIN idk wtf could be happening i got my stock headers on could it be too restricted? what are the signs on bad heads? or could it be the fuel pump
     
  20. 02gt

    02gt Well-Known Member Donator

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    do you have a tuner(sct or diablo)? If so hook it up and let is record the fuel pressure, it shold be around 40 psi....
     

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