shuddering

  1. WrenchinBrit

    Pulsing hesitant shuddering with slight acceleration

    Hey Guys 256k King Ranch HD tow 5.4 EL 2014 I'm getting a pulsing shudder if i feather the throttle to accelerate a little .. if i push harder it will downshift ok and run smooth .. I'm thinking injector? coil pack but fear trans issue ( have changed trans fluid and installed drain plug in pan...
  2. J

    1997 4.6L issues HELP with ideas please

    I’ve had my truck for over 10 years and have never had an issue. But in the last month has been running rough. To the point of almost stalling and shudders sometimes. Also noticed a whistle noise that’s new. Scanned it and they said EGR Valve bought a new one and changed it. Same issue no change...
  3. H

    Engine Shuttering / Check Engine Blinking

    I am experiencing engine shuddering usually on acceleration or uphill. Also, when I gun it (rarely) the car hesitates and the check engine light blinks rapidly. If it’s not caused by bad spark plugs/coil packs, could it be the torque converter in the transmission? 2007 EL Eddie Bauer...
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