I have a 12 cruze eco that was running fine then I replaced the trans an first time I turned the key after trans was put in it started for a sec then stalled. After that when I tried to start it again it cranks over but really slow. Thought it was the battery so I got a new one an same thing then I got a new starter an that did make it crank alil faster but still wont start. Also I havent filled the clutch fluid yet after replacing trans an throw out bearing but that shouldn't stop the car from starting. If anybody has any ideas or had the same thing happen plz lmk.