Problem with L300 FB 4D56 engine. Bigla na lang parang masisinok then mamamatay. After starting, minsan a-andar pero gumagapang. After some time, parang walang nangyari a-andar ng maayos. Pero minsan bigla na lang mamatay habang tumatakbo.

Things done:
1. Drained and clean the tank (2X)
2. Cleaned the fuel line, then bleed.
3. Check transmission OK
4. Bought a replacement Fuel pump, same problem.

The problem is hindi mai-layo yung van dahil baka tumirik. Baka may naka experienced na nito.
Your comments are very much appreciated. Thanks.