Brett Posted March 24, 2023 Share Posted March 24, 2023 Hi I’ve got a 2011 1.8 insignia which every time the rad fan kicks in it sort of surges ie lifting the revs slightly and put a small vibration through the car. Car runs well other than this. Changed the battery, coil pack rocker cover and still this goes on. Any help would be really appreciated. Thanks Brett. Quote Link to comment Share on other sites More sharing options...
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