4D56 L300 engine problem

[leogm]

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.

[Bochekokik]

Pards, napalitan mo na yung fuel filter? Check mo rin yung maliit strainer filter sa input fuel line ng injection pump. Kailangan mo ng tweezer o panungkit para matanggal at buga lang ng compressed air, tanggal na bara sa strainer.
Ito yung nangyari sa akin before, kahit naka 2x na akong nagdrain at naglinis ng fuel tank ko, ganun pa rin, kasi barado yung fuel filter at strainer filter.
Wait pa natin yung ibang diesel gurus kung ano say nila.

[leogm]

Yup nag palit na din ng fuel filter. Thanks.

[RedHotBlood]

bro baka naman injection pump mo na me problema. Patsek mo na din para sigurado.

[alainroyce]

Check mo yung connection between fuel filter my strainer na nakakabit dun sa fuel line.. usually nagkakaroon ng parang putik dun.. medyo maliit lang yun. pag hindi nalinis yan kumakadyot kadyot yan and walng power kahit diinan mo yung gas pedal.. sa diesel kasi kailang ng malakas na pressure.. kalimitin akala nila injection pump ang sira.. pag ok naman at malini.. check your injection pump..

[Dieseldude]

Twink had the same problem and he was able to properly diagnose and correct the fault.

Check out his thread on this same forum under "parang sinisisnok ang makina".