2000 Pontiac Bonneville V6-3.8, engine locked
I drove my car to work on Thursday night, come home Friday morning on this last labor day weekend. Parked it, used my other vehicle for the holiday weekend, went to go back to work Tuesday night and it would not start. It sounded like a battery issue, so I charged it on slow for 8 hrs., tested it, it was 100%, installed it. No go. So probably the starter. Replaced it and the same. The starter wants to engage but will not turn over. I put the 1" socket and breaker to the crank and it would not go forward as the motor usually turns. So I reversed the moter probably 1 turn, hit the key and it started for 1 second till it stopped with a screech, locked form going forward. I took the serpentine belt off to check the AC pulley and it'* free. The car had run great, every time something looked to be going wrong, I put it in. No oil in Radiator, no anti-freeze in the oil. Cannot understand it run perfect, parked it for 4 days and this.
Any opinions? Torque Converter?