What was found
COCKPIT & CABIN TEMP 104' - 98', STARTED ACFT AT THE GATE TO COOL FOR PAX BOARDING. AFTER STARTING NR 1 ENG, STRONG ODOR FILLED THE COCKPIT & CABIN, VERY STRONG SMELLY SOCK ODOR. SHUTDOWN BECAUSE THE WHOLE CREW COULD NOT TAKE THE SMELL ANY LONGER. ACCOMPLISHED ENG CABIN ODOR TROUBLESHOOTING IAW JC 33L00071001. ACCOMPLISHED A330 TROUBLESHOOTING CABIN AIR QUALITY. ACCOMPLISHED CLEANING APU BLEED AIR DUCTS IAW AMM 21-00-00-615-804-A805-A. REPLACED APU ASSEMBLY IAW JC 33L31549001 REF LOG PAGE 1354385. ACFT OK FOR SERVICE.