Monday, January 3rd, 2011 AT 12:40 AM
MY CAR, A 1995 OLDS CIERA, 4 CYL, SHAKES AND KNOCKS WHEN IT IS FIRST STARTED AND IS COLD, THEN IT'S OK. THE SPARK PLUGS ARE NEW, IT WAS TUNED UP 9 MONTHS AGO. IT DOES NOT HAPPEN WHEN IT'S WARM. WHAT DO YOU THINK?