I've noticed mine is jerky sometimes at lower rpms. By 12-1500 it rises smoothly. Occurs moreso on colder mornings.
My charging system is good FWIW.
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Terry Allison
N. Calif. & Boca Chica, Panama
09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)
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