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  1. Transmission problem? - Minor RPM jump

    5.9L V8 Specific Topics
    Automatic transmission… Tach jumps about 75-100 rpm as if the torque converter unlocks for a moment. Occurrences are sometimes seconds apart or minutes. No jerking, though you can feel/hear the rpm jump. It usually happens when going up hill and holding the gas steady. It happens in and out of...
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