Diesel Fuel Injection System Help Desk

[Dieseldude]

copy sir.pinatingin ko sa mechanic sa SS auto shop sinabi niyang sa computer box. binuksan namin at yun may mga nasunog na components pati sa mainboard nia may paumpisang masunog.Pinalitan mga parts na sunog so far ok naman na hopefully.No code errors pala nung na-diagnos sir.obserbahan ko parin baka pumalya uli.Salamat po uli sir Dieseldude

You're welcome. Mabuti naman at naayos na ang car mo.

[dextersjaymarks]

Good PM po Dieseldude. Tsikot member po ako at lagi po ako nagbabasa sa forum at pansin ko po na kayo po isa sa mga experts sa diesel.

May Irerefer po sana ako sa inyo.

Sasakyan ko po is 96' Isuzu LS Pickup, nabili ko po ito 2nd hand. Napansin ko lang po na kung nasa 2ng gear po ako kung aapak po ako ng gas to rev up going to 3rd gear eh kumakadyot po sasakyan kaya gagawin ko po tapak sa clutch ng konti high rev going to 3rd para di kakadyot. Ano po kaya problema dito?

second po eh bakit po kaya mabaho amoy ng usok ko parang di sunog na diesel. tapos medyo puti po pag una ung usok. Pagtagal Maitim na. pag bubuksan ko po ung oil filller cap at dip stick may lumalabas po na white na usok. Konti lang naman po.

ano po kaya dapat ko gawin at Kailangang ipacheck po dito. gusto ko po sana na ipaayos sa inyo pero dito po kasi ako sa nueva vizcaya.

sana po ay matulungan po nyo ako. salamat po.

[Dieseldude]

Sasakyan ko po is 96' Isuzu LS Pickup, nabili ko po ito 2nd hand. Ano ang present mileage mo?

Napansin ko lang po na kung nasa 2ng gear po ako kung aapak po ako ng gas to rev up going to 3rd gear eh kumakadyot po sasakyan kaya gagawin ko po tapak sa clutch ng konti high rev going to 3rd para di kakadyot. Ano po kaya problema dito? Hindi ako sigurado. Parang may problema ang clutch, or accelerator cable, or even engine support.

second po eh bakit po kaya mabaho amoy ng usok ko parang di sunog na diesel. Check fuel injection pump timing.

tapos medyo puti po pag una ung usok. Pagtagal Maitim na. Check cylinder compression, engine cold and engine hot.

pag bubuksan ko po ung oil filller cap at dip stick may lumalabas po na white na usok. Konti lang naman po. Blowby gasses yan..... normal kung konti lang, abnormal kung madami ang discharge.

ano po kaya dapat ko gawin at Kailangang ipacheck po dito. gusto ko po sana na ipaayos sa inyo pero dito po kasi ako sa nueva vizcaya. Mechanical diesel engine ito. Sa palagay ko, meron kang makukuhang mekaniko jan para mag check ng engine mo.

sana po ay matulungan po nyo ako. salamat po. You're welcome.

[dextersjaymarks]

Sir Dieseldude, thank you po sa quick reply. Mileage ko po is 88K. Cylinder Compression test po ba is same sa Compression test? Pasensya na po newbie kasi.

[Dieseldude]

Sir Dieseldude, thank you po sa quick reply. Mileage ko po is 88K. Engine should be ok at 88k; not unless this engine has experienced an overheating situation.

Cylinder Compression test po ba is same sa Compression test? Pareho lang yan.

Suggestion ko: check injection timing muna, tapos compression test....

Pasensya na po newbie kasi. No problem..... good luck....

[tomtom]

need your suggestions sir,

I own a TFR 92 isuzu, ok pa naman po ang FC around 10kms/l pero mahina na po ang hatak (mabagal po ang takbo bago bumilis) and mausok na. kailangan po ba ng calibration or linis lang po ng injectors? if ever may papalitan b'coz of the 2 factors, ano po ang dapat na papalitan?

it's my first time own a diesel truck kaya new lahat sa akin yung calibration. thanks

[Dieseldude]

need your suggestions sir,

I own a TFR 92 isuzu, That's a 15 year old truck.

ok pa naman po ang FC around 10kms/l pero mahina na po ang hatak (mabagal po ang takbo bago bumilis) and mausok na. Matanda na kasi. Joke lang yan. Seriously, check / replace air and fuel filters muna.

kailangan po ba ng calibration or linis lang po ng injectors? Hindi kaya linisin ang 15 year old injectors, replace nozzles na.

if ever may papalitan b'coz of the 2 factors, ano po ang dapat na papalitan? Hindi natin alam. Kung na-repair na ang fuel system sometime in the past, baka konti lang ang sira. Pero kung first time repair ito, marami ang papalitan dahil 15 years old na yan.

it's my first time own a diesel truck kaya new lahat sa akin yung calibration. Mabuti naman at intersado ka matuto. Makakatipid ka nyan.

thanks You're welcome....

[greg.alba]

Hello Dieseldude,

Newbie here. I have purchased Isuzu Crosswind XL 2008 April last year and 30k pa lang ang mileage. Recent na nangyari is ayaw mag-start and have it towed to service center. Ang findings nila is that I have a damaged injection pump and was caused by contaminated diesel fuel.

I follow regularly their maintenance check (hoping that they use original oil, air and fuel filters and lubricants kasi sa casa ko pinagagawa yun.)

My questions are as follows:
1. Possible ba na ma-damage agad yung injection pump?
2. Tama ba na hindi covered ng warranty yung replacement and labor ng injection pump for the warranty is 100k or 3 years whichever comes first?

Also, noticed dun sa sasakyan is that unusual yung vibration. After PM smooth sya then after a few days bumabalik yung vibration.

Hope you can provide me answers on this.

Thank you very much and more power to you dieseldude and to the tsikot community.

[Dieseldude]

Hello Dieseldude,

Newbie here. I have purchased Isuzu Crosswind XL 2008 April last year and 30k pa lang ang mileage. Recent na nangyari is ayaw mag-start and have it towed to service center. Ang findings nila is that I have a damaged injection pump and was caused by contaminated diesel fuel. Solid contaminants will be arrested by the fuel filter. But even an original fuel filter cannot prevent water from getting into the injection system.

I follow regularly their maintenance check (hoping that they use original oil, air and fuel filters and lubricants kasi sa casa ko pinagagawa yun.)

My questions are as follows:
1. Possible ba na ma-damage agad yung injection pump? This is quite remote. But, water in fuel will definitely damage an injection pump fast.
2. Tama ba na hindi covered ng warranty yung replacement and labor ng injection pump for the warranty is 100k or 3 years whichever comes first? Tama ito, because the injection pump is designed to operate with clean diesel fuel. It is not the casa's fault that water has entered the injection pump.

Also, noticed dun sa sasakyan is that unusual yung vibration. After PM smooth sya then after a few days bumabalik yung vibration. Don't know about this..... vague.

Hope you can provide me answers on this. You can try these:

1. Go to Isuzu casa and request them to prove and show you the contamination as they have seen it.
   
2. The Crosswind's fuel filter functions as a water separator as well. It has a sensor which should indicate on your dashboard if water is detected in the filter. This is your system's first line of defense against water, as it gives you the chance to drain water from the filter before it gets to the injection pump. Isuzu casa should prove to you that the "WIF" (Water in fuel) sensor and indicator system is fuctioning.
   
3. If casa is not able to prove water contamination, or if the "WIF" system is not working, you may have a fighting chance. They should repair fuel injection system free of charge.
   

Thank you very much and more power to you dieseldude and to the tsikot community. You're welcome....... good luck!!!

[jaz014]

hello diesel dude,

mine is an XT 05 model...hindi naman po tubig ang naisalin kundi gasolina ng aanga-anga na gasoline girl sa Petro Sto. Tomas Batangas...ako pa ang nakakita but too late nakapagsalin na ng 2.5 liters, medyo buwenas pa din at naturn-off ko engine before filling...so here is what we did..

1. Drain ang diesel tank...
2. Remove hose from fuel pump and filter and manual bleed.(Ang bilis pumanik ng gasoline andun na agad sa mga hoses..
3. Remove the supply hose to fuel injection then bleed ulit until the gasoline smell and color was gone.

after ng matagal na bleeding..start and one click naman po.

Question...ano po mangyari kapag napasok ng gasoline ang duel injection?masisira po ba?

then sabi nung bayaw ko yung mga byaheng jeep sa tanay rizal, hinahaluan daw ng konti gasoline ang diesel para malakas ang hatak at naputok ang muffler kapag hinataw...I dont know if it is true...

Lesson learned...hindi na ako ulit mag-pa diesel dun...hindi maganda ang service..

thanks...