What was found
(CAN)26 MINUTES AFTER TAKEOFF AT FL330 A 1100 LB FUEL IMBALANCE WAS DETECTED. CROSS BALANCING WAS IMPLEMENTED, LEFT AND RIGHT COUNTERS SHOWING EQUAL AMOUNTS OF FUEL IN BOTH TANKS. AIRCRAFT DIVERTED, LANDEDWITHOUT INCIDENT. TANKS WERE DIPPED AND A 2000 LB DIFFERENCE WAS DETECTED. FUEL QUANTITY GAUGE REPLACED.