Diesel Fuel Injection System Help Desk

[chilledoxygen]

Diesel Experts, Good day.

Super mausok na po yung pajero fieldmaster 4m40 ko. Hindi naman po sha hard starting pag umaga. Ok naman sha with its acceleration. Pinakalibrate ko na lahat ng injectors ko, nothing happened. Pag naka idle, hindi naman sha umuusok. Pero pag binigla mo apak ang accelerator. Yun super usok na. Maitim yung usok.

What should be the main problem? It it my injection pump? Or it should be my turbo? I need your big help. Thanks

[chilledoxygen]

Hi Sir Dieseldue.

Do you still have the Pajero's idle and idle-up setting procedure? I cannot download the attachment from this thread on page 12. Can you send it to my email? shinnuker*yahoo.com. Thanks.

My system is idling problem is weird kc, when I turn on the aircon. My rpm decreases. It should increase when I turn on the aircon, right? thanks =)

[Dieseldude]

Hi Sir Dieseldue.

Do you still have the Pajero's idle and idle-up setting procedure? I cannot download the attachment from this thread on page 12. Can you send it to my email? shinnuker*yahoo.com. Thanks.

My system is idling problem is weird kc, when I turn on the aircon. My rpm decreases. It should increase when I turn on the aircon, right? thanks =)

I don't have it at the moment........will try to look for it.

Basically, you have to check 3 things:

1. Mechanical adjustment of the idle-up lever on the injection pump. It should pull the IP lever to increase idle when the AC compressor turns on.
   
2. Disconnected or damaged vacuum hoses
3. No 12v power to the idle-up solenoid.
   

[alrorskyz]

Hi to all diesel guru,

I need your advice. My ride is JDM pajero w/ turbo 4d56 and AT tranny. Bagong change oil, air filter and fuel filter last month lang. Bakit kapag bagong andar at hindi pa mainit ang engine ko very low ang rpm ko then pag mainit na nasa 900 then kung naka aircon naman nasa 1000.
Hindi ko mapatakbo kung malamig pa ang sasakyan dahil sobrang manginginig. Hindi naman siya hard starting just one click lang start na agad and hindi
rin mausok kahit biglan apak sa pedal.
Ano kaya ang problem nito?

[Dieseldude]

Hi to all diesel guru,

I need your advice. My ride is JDM pajero w/ turbo 4d56 and AT tranny. Bagong change oil, air filter and fuel filter last month lang. Nag simula ba ang problem pagkatapos ng change oil and filters? Ano ang oil grade na ginamit mo? Meron pa bang ibang ginalaw sa engine mo?

Bakit kapag bagong andar at hindi pa mainit ang engine ko very low ang rpm ko then pag mainit na nasa 900 then kung naka aircon naman nasa 1000.

Hindi ko mapatakbo kung malamig pa ang sasakyan dahil sobrang manginginig. Bakit di mo mapatakbo, wala bang power kung malamig? Do you experience white smoke when cold?

Hindi naman siya hard starting just one click lang start na agad and hindi
rin mausok kahit biglan apak sa pedal. Dapat meron konting usok sa biglang tapak ng acc pedal. Meron bang power pag mainit na ang engine o kulang pa rin?

Ano kaya ang problem nito?

[alrorskyz]

Hi to all diesel guru,

I need your advice. My ride is JDM pajero w/ turbo 4d56 and AT tranny. Bagong change oil, air filter and fuel filter last month lang. Nag simula ba ang problem pagkatapos ng change oil and filters? Hindi ko sure kailan nagsimula kasi si misis ang laging gumagamit nito, abroad kasi ako nagwork. Ano ang oil grade na ginamit mo? petron trekker 15w-40 Meron pa bang ibang ginalaw sa engine mo? wala po.

Bakit kapag bagong andar at hindi pa mainit ang engine ko very low ang rpm ko then pag mainit na nasa 900 then kung naka aircon naman nasa 1000.

Hindi ko mapatakbo kung malamig pa ang sasakyan dahil sobrang manginginig. Bakit di mo mapatakbo, wala bang power kung malamig? meron naman power but automatic kasi kung tapakan mo ang brake na malamig pa ang engine and naka drive sobrang manginginig ang engine. kailangan i-preheat ko muna for 2-4 mins para maganda na ang takbo. Do you experience white smoke when cold? wala naman white smoke sir.

Hindi naman siya hard starting just one click lang start na agad and hindi
rin mausok kahit biglan apak sa pedal. Dapat meron konting usok sa biglang tapak ng acc pedal. Meron bang power pag mainit na ang engine o kulang pa rin? wala naman ako problem sa power nito sir. ang problem ko lang ay sobrang low rpm basta malamig pa ang engine. i think mas mababa pa sa 750 rpm.
pinaadjust ko sa taga petron ang idle ko kaya nagiging 900 na but ganun parin kung malamig ang engine very low rpm parin.

thank you for your reply sir

Ano kaya ang problem nito?

[pleck]

bago lang ako sa diesel engine kakabili ko lang ng l400 ko local space gear pag kuha ko after 2-3 days sa akin change oil na ako, change oil filter , fuel filter, air filter lininis lang. then after 2 days nag salin ako ng oil ( may leak kase sa crankshaft oil seal ) pag open ko ng oil filter cap ko may usok so kinabahan agad ako hinugod ko agad dipstick wala pa naman usok dun at walang talsik ng oil after a week byahe ako makati pag check ko ng dipstick ko (hinugot ko ng konti ) may usok na din at talsik ng oil na pa konti konti

kanina nag pa compression test ako sabi ng mekaniko ok pa naman daw

ano kaya cause nitong usok sa dipstick at oil cap?

4D56T engine SPACEGEAR LOCAL max speed niya 80kph pwede pa pigain pero hirap na hirap

hindi ko na alam san ko dadalhin to at saan ipapagawa

btw one click pa din po space gear ko at no overheat hindi rin nag babawas ng langis sa oil not sure minsan ko lang kase gamitin

[alrorskyz]

Hi to all diesel guru,

I need your advice. My ride is JDM pajero w/ turbo 4d56 and AT tranny. Bagong change oil, air filter and fuel filter last month lang. Nag simula ba ang problem pagkatapos ng change oil and filters? Hindi ko sure kailan nagsimula kasi si misis ang laging gumagamit nito, abroad kasi ako nagwork. Ano ang oil grade na ginamit mo? petron trekker 15w-40 Meron pa bang ibang ginalaw sa engine mo? wala po.

Bakit kapag bagong andar at hindi pa mainit ang engine ko very low ang rpm ko then pag mainit na nasa 900 then kung naka aircon naman nasa 1000.

Hindi ko mapatakbo kung malamig pa ang sasakyan dahil sobrang manginginig. Bakit di mo mapatakbo, wala bang power kung malamig? meron naman power but automatic kasi kung tapakan mo ang brake na malamig pa ang engine and naka drive sobrang manginginig ang engine. kailangan i-preheat ko muna for 2-4 mins para maganda na ang takbo. Do you experience white smoke when cold? wala naman white smoke sir.

Hindi naman siya hard starting just one click lang start na agad and hindi
rin mausok kahit biglan apak sa pedal. Dapat meron konting usok sa biglang tapak ng acc pedal. Meron bang power pag mainit na ang engine o kulang pa rin? wala naman ako problem sa power nito sir. ang problem ko lang ay sobrang low rpm basta malamig pa ang engine. i think mas mababa pa sa 750 rpm.
pinaadjust ko sa taga petron ang idle ko kaya nagiging 900 na but ganun parin kung malamig ang engine very low rpm parin.

thank you for your reply sir

Ano kaya ang problem nito?

Sir Dieseldude ano kaya ang problem nito? calibration naba?

[DonPempe]

Hi Sir Dieseldude

My problem is nag po power loss ung sasakyan ko unti unti decrease nya ng rpm hangang mamatay engine kung hindi ako mag accelerate mamatay engine(when idle)(Ano kaya ang posibleng reason?)i have checked replace fuel filter(baka barado na) checked the fuel line ok naman wala rin bara(nag palit din ako fuel hose)(I read from previous post same problem with mine kahit rekta na namamatay bigla engine) ..and also I have the same problem with the recent post bumaba din ang idle ko pag on ko ng Aircon.(Is there a connection with the first problem?)

Pina chek ko sa kilalang mechanic sabi calibration na daw dapat baka daw may problem na sa rotary pump ng Injection Pump is it possible? (Baka daw kasi)also please do send me a copy of Pajero's idle and idle-up setting procedure. my email is yeye6a*yahoo.com.Thank you

[Dieseldude]

Hi Sir Dieseldude

My problem is nag po power loss ung sasakyan ko unti unti decrease nya ng rpm hangang mamatay engine kung hindi ako mag accelerate mamatay engine(when idle)(Ano kaya ang posibleng reason?)i have checked replace fuel filter(baka barado na) checked the fuel line ok naman wala rin bara(nag palit din ako fuel hose)(I read from previous post same problem with mine kahit rekta na namamatay bigla engine) Subukan mo mag adjust/increase ng idle speed.

..and also I have the same problem with the recent post bumaba din ang idle ko pag on ko ng Aircon.(Is there a connection with the first problem?) This is possible...

Pina chek ko sa kilalang mechanic sabi calibration na daw dapat baka daw may problem na sa rotary pump ng Injection Pump is it possible? (Baka daw kasi) This is also possible....

also please do send me a copy of Pajero's idle and idle-up setting procedure. my email is yeye6a*yahoo.com.Thank you
Sorry, wala na akong copy ng ganitong procedure. Search mo sa previous posts, baka makita mo. Calling Rion......

[DonPempe]

Hi Sir Dieseldude

My problem is nag po power loss ung sasakyan ko unti unti decrease nya ng rpm hangang mamatay engine kung hindi ako mag accelerate mamatay engine(when idle)(Ano kaya ang posibleng reason?)i have checked replace fuel filter(baka barado na) checked the fuel line ok naman wala rin bara(nag palit din ako fuel hose)(I read from previous post same problem with mine kahit rekta na namamatay bigla engine) Subukan mo mag adjust/increase ng idle speed.

..and also I have the same problem with the recent post bumaba din ang idle ko pag on ko ng Aircon.(Is there a connection with the first problem?) This is possible...

Pina chek ko sa kilalang mechanic sabi calibration na daw dapat baka daw may problem na sa rotary pump ng Injection Pump is it possible? (Baka daw kasi) This is also possible....

also please do send me a copy of Pajero's idle and idle-up setting procedure. my email is yeye6a*yahoo.com.Thank you
Sorry, wala na akong copy ng ganitong procedure. Search mo sa previous posts, baka makita mo. Calling Rion......

Thank you Sir Dieseldude for the quick reply.. Dapat calibration na in case nde mag bago kung ni adjust ko n ung idling nya?

[Dieseldude]

Thank you Sir Dieseldude for the quick reply.. Dapat calibration na in case nde mag bago kung ni adjust ko n ung idling nya?

Wag muna. Temporarily replace the black rubber hose between the fuel filter and the injection pump with a clear plastic hose. Tingnan mo kung sumisipsip ng air bubbles ang pump.

[Dieseldude]

Diesel Experts, Good day.

Super mausok na po yung pajero fieldmaster 4m40 ko. Hindi naman po sha hard starting pag umaga. Ok naman sha with its acceleration. Pinakalibrate ko na lahat ng injectors ko, nothing happened. Pag naka idle, hindi naman sha umuusok. Pero pag binigla mo apak ang accelerator. Yun super usok na. Maitim yung usok.

What should be the main problem? It it my injection pump? Or it should be my turbo? I need your big help. Thanks

Try mo muna air filter, then turbo, then injection pump.
A simple way to check turbo: Floor your accelerator pedal; turbo is basically okay if the air hoses swell......you have boost pressure.
Finally, have your injection pump checked.

[chilledoxygen]

Thank you for the advice sir Dieseldude. I will check my parts as soon as possilbe.

[cocoy]

sir just out of the blue question..

how dirty is our diesel fuel compared to other asian countries.. specally thailand? i think u already know where im goin with this question.

[Dieseldude]

sir just out of the blue question..

how dirty is our diesel fuel compared to other asian countries.. specally thailand? I really don't know....., but I'm very happy with our local diesel fuel.
i think u already know where im goin with this question. Yes, I have an idea.

[cocoy]

sir just out of the blue question..

how dirty is our diesel fuel compared to other asian countries.. specally thailand? I really don't know....., but I'm very happy with our local diesel fuel.
i think u already know where im goin with this question. Yes, I have an idea.

thank you again sir..

just want to asked again. if in fact it hasnt been asked here before..
why is it that there are so many isuzu crosswinds that emit black or is just basically smoking..

i was looking at the engine bay of an isuzu crosswind very new model.. and i noticed that there is a water separator before the fuel filter..

this should therefore protect it from water contamination that could cause problems to the injection pump. but it has this device. so what is causing the smoke?

[ISO4113]

[QUOTE=cocoy;1523222]thank you again sir..

just want to asked again. if in fact it hasnt been asked here before..
why is it that there are so many isuzu crosswinds that emit black or is just basically smoking..

i was looking at the engine bay of an isuzu crosswind very new model.. and i noticed that there is a water separator before the fuel filter..

this should therefore protect it from water contamination that could cause problems to the injection pump. but it has this device. so what is causing the smoke?


I don't think it is a ISUZU Crosswind-speific problem; rather it is a maintenance problem. A lot of times, rather than replacing the air filter with a new one, 'pinalilinis lang nila' at dito nagsisimula ang black smoke.

The water separator is placed there so that water contamination will be minimized. It does not mean na never na magkaka tubig ang fuel system (e.g. pag hindi mo pinapalitan ang fuel filter na may tubig na. pag napuno yun, papasok na rin ang water sa fuel system.) and its not connected to the black smoke problem. contamination of water would lead to rusty injection pump and stuck up nozzles.

Regards,

ISO4113

[blue_gambit]

Diesel Experts, Good day.

Super mausok na po yung pajero fieldmaster 4m40 ko. Hindi naman po sha hard starting pag umaga. Ok naman sha with its acceleration. Pinakalibrate ko na lahat ng injectors ko, nothing happened. Pag naka idle, hindi naman sha umuusok. Pero pag binigla mo apak ang accelerator. Yun super usok na. Maitim yung usok.

What should be the main problem? It it my injection pump? Or it should be my turbo? I need your big help. Thanks

Malamang puro carbon deposit exhaust pipe mo sir, katulad nung nakasabay ko kagabi sa avenida. Lahat ng arangkada puro black smoke.

[Dieseldude]

Malamang puro carbon deposit exhaust pipe mo sir, katulad nung nakasabay ko kagabi sa avenida. Lahat ng arangkada puro black smoke.

Nanggagaling ang black smoke sa poorly maintained diesel engine, hindi sa exhaust pipe. Dumadaan lang ito sa exhaust pipe.