Does sound a little easy. Norm the normal poping or surging of the cylinders going through the compression cycle __________________ Todd Davis '95 Club Sport - Bosal Exhaust, Koni Shocks not installed yet-RDSport suspension,DASC Supercharger, B&M shifter '04 E46 M3 |'92 Porsche 911 C4 |'99 LR Disco II|'70 Volvo 1800E|'04 V70R Mechanical Design Engineer |