i have a 97 pete with DD 60. i fliip the cruise control on and it rides fine but every once and awile it begins to shudder, as if the cruise control is being shut off and then quickly placed back on. this seems to go on sporatically ever time i place it on cruise. it doesnt feel or sound good so it must mean it aint good. anyone have any ideas on what causes this so i an get t fixing it? Thanks