Diesel Fuel Injection System Help Desk

[Dieseldude]

Hello ask ko lang. im wondering bakit yung mga sasakyan ng mga isuzu mausok, lagi kasi huli ng smoke belching. Hindi naman mausok ang mga Isuzu. Lahat ng sasakyan, uusok kung hindi properly maintained.

anu bang best way para hindi mahuli. kaka pagawa ko lang ng injection pump and replace injectors huli pa din.
Mag claim ka ng warranty sa diesel workshop na gumawa sa car mo. Authorized diesel workshop ba ito, complete sa test information and equipment? Meron ba silang smoke testing equipment para mapatunayan na pasado na ang car mo?

anu kaya magandang solusyon. lalo na sa makati matindi kung makatapak bagsak cgurado lagi. may ways ba para hindi mahuli.
Maintain our cars properly...and have your car serviced by authorized diesel workshops. In the end, this will save you money

CHECK/REPLACE AIR FILTER

[toyotaparter]

Dieseldude! Good daY!

I have a Toyota 4Runner on a 3L engine with a 5 speed manual tranny.
The thing is, hindi naman siya mausok kapak normal na gamit. kapag hirap lang yung engine sa akyatan, kasi minsan pinapaakyat ko siya ng matarik * round 1000,-1300rpm only. (normal ba ito?)

bagong overhaul yung engine, palit piston rings, sleeves, timing belt, etc.

pansin ko sakanya, pag nagsstart yung makina, anglakas ng taagas ng diesel from the injection pump. siguro tancha ko mga isang maliit na baso ng diesel ang nasasayang twing nagsstart siya. pero after sometime, halimbawa ginamit ko for 10-25 kilometers tapos pinapaidle ko lang bago ioff yung engine, wala namang tumatagas from the injection pump. Basta everytime an magsstart ako, may tagas talaga ng diesel.


Also, pansin ko, kapag galing from a cold start yung engine (exampe, magdamag hindi ginamit) pagkastart niya, minsan hard starting kailangan pa apakan yung accelerator, minsan hindi. minsan one click start, minsan hindi. And minsan kapag kakastart lang, pababa ng pababa yung RPM niya parang naghihingalo, pero pag inapakan ko na yung accelerator ng konti, ok na ulit siya.

kakapalit ko lang ng OEM fuel filter btw.

[Dieseldude]

Dieseldude! Good daY!

I have a Toyota 4Runner on a 3L engine with a 5 speed manual tranny.
The thing is, hindi naman siya mausok kapak normal na gamit. kapag hirap lang yung engine sa akyatan, kasi minsan pinapaakyat ko siya ng matarik * round 1000,-1300rpm only. (normal ba ito?) Hindi ito normal. Check/replace air filter.

bagong overhaul yung engine, palit piston rings, sleeves, timing belt, etc.

pansin ko sakanya, pag nagsstart yung makina, anglakas ng taagas ng diesel from the injection pump. siguro tancha ko mga isang maliit na baso ng diesel ang nasasayang twing nagsstart siya. pero after sometime, halimbawa ginamit ko for 10-25 kilometers tapos pinapaidle ko lang bago ioff yung engine, wala namang tumatagas from the injection pump. Basta everytime an magsstart ako, may tagas talaga ng diesel. Pa-check mo injection pump.


Also, pansin ko, kapag galing from a cold start yung engine (exampe, magdamag hindi ginamit) pagkastart niya, minsan hard starting kailangan pa apakan yung accelerator, minsan hindi. minsan one click start, minsan hindi. And minsan kapag kakastart lang, pababa ng pababa yung RPM niya parang naghihingalo, pero pag inapakan ko na yung accelerator ng konti, ok na ulit siya. Baka may problem ang injection pump, and/or ang glow plug system.

kakapalit ko lang ng OEM fuel filter btw. : Nagpalit ka air filter?

[toyotaparter]

No. Di ako nagpalit ng air filter. And nung huli ko siya pinalitan was 2 years ago and generic air filter pa ito. The odo is running at 370 thou kilometers. Hindi pa ako nagpapalit ng nozzles. San kaya merong orig na murang nozzles.??
Ty dieseldude.

[BoyBawang]

Hi sirs, Can we do a DIY cleaning of our glow plugs? what tools do we need? how do we clean it? are there proper steps? inputs are greatly appreciated TIA

[Dieseldude]

Hi sirs, Can we do a DIY cleaning of our glow plugs? what tools do we need? how do we clean it? are there proper steps? inputs are greatly appreciated TIA

Glow plugs never need cleaning.

[josef_22]

Sir, may question lang ako i had my isuzu crosswind 2002 na mausok kapag hintaw bigla yung pedal, napa calibrate kuna injection pump last november 2011 then i had nozzle tip replacement this month lang, kso problema ko mausok padin, sabi nung pnuntahan kong gumagawa baka daw ung clearance valve ay dina palitan nung nacalibrate auto ko, anu po sa tingin nio most likely problem nito, lakas namang humataw ng sasakyan q kapag pinedal q lakas ng smoke then on normal run na kapag nakuha na speed, ok naman nwwla naman na yung smoke please help lang sir,

[Dieseldude]

Sir, may question lang ako i had my isuzu crosswind 2002 na mausok kapag hintaw bigla yung pedal, napa calibrate kuna injection pump last november 2011 then i had nozzle tip replacement this month lang, kso problema ko mausok padin, sabi nung pnuntahan kong gumagawa baka daw ung clearance valve ay dina palitan nung nacalibrate auto ko, Pa-adjust mo yung valves sa gumawa ng injection pump para mapatunayan nya sayo na wala sa fuel system ang problem....

anu po sa tingin nio most likely problem nito, lakas namang humataw ng sasakyan q kapag pinedal q lakas ng smoke then on normal run na kapag nakuha na speed, ok naman nwwla naman na yung smoke please help lang sir, Kung bago ang air filter mo, malamang ang problem ay nasa EGR or sa injection pump/injectors.

[josef_22]

so even if bago ang mga nozzle tips ko and bago ang air filter ko and i had my injection pump calibrated 5months ago at mausok pa upon pedaling to a higher speed...i need to have my injection pump re calibrated again? sabi po kasi nung pinuntahan kung shop kung saan nilagay ung nozzle ko baka daw hindi napalitan ng bagu ang mga delivery valve ba un or distribution valve.... so ung sinasabi niyo po sir na injection pump or injectors is the whole assy ng injection pump ko dipo ba mahal un its like buying a new one? TIA, ilang araw ko napo kasing iniicip ito, and napapagastos ako, like if i bring it to the calibration shop irerecalibrate nanaman gastos nanaman.

[Dieseldude]

so even if bago ang mga nozzle tips ko and bago ang air filter ko and i had my injection pump calibrated 5months ago at mausok pa upon pedaling to a higher speed...i need to have my injection pump re calibrated again? Yes, kasi yan ang nakikita kong problema ng car mo.

sabi po kasi nung pinuntahan kung shop kung saan nilagay ung nozzle ko baka daw hindi napalitan ng bagu ang mga delivery valve ba un or distribution valve.... Sa palagay ko, wala sa delivery valve ang problem mo. Calibration adjustments ang kelangan ayusin.

so ung sinasabi niyo po sir na injection pump or injectors is the whole assy ng injection pump ko dipo ba mahal un its like buying a new one? TIA, ilang araw ko napo kasing iniicip ito, and napapagastos ako, like if i bring it to the calibration shop irerecalibrate nanaman gastos nanaman. Mag claim ka ng warranty sa shop na dating gumawa ng pump mo para di ka magkagastos ulit. Authorized Bosch diesel workshop ba ito?

[josef_22]

diko po alam sir, medyo nabadtrip nga ako sa 1st calibration shop na pinuntahan ko kasi ung nozzle replacement na nilagay nila ay hindi kapares nang luma na inalis as in hindi nia kapares ng code prati akong bumabalik nun kexo inaadjust ang minor but they never told me na iba palang code yun, nalaman ko lang yun when i had a a second opinion sa ibang calibration shop 2 weeks after my calibration and repalcement ng nozzle, sa second opinion ng shop na pinuntahan ko ginawa nila binalik ung luma and nilinis, then umayus pero naging mausok din after wards, sabi nung 2nd opinion ko kailanagan ng palitan nozzle so this month lang kakabili ko lang ulit ng bago,,, then pinalagay ko ulit sa 3rd shop na nagcacalibtrate kasi medyo mahal ang singil dun sa 2nd opinion eh.. nways salamat sir. ill just have it re calibrated and have some few adjustment, specifically what adjustment should be done naman in your own opinion?

[GTi]

Hello there sir! I am asking for a friend to whom we sold our 2002 4JX1 Trooper. Not long after we sold him the car, nahalata niya na matindi ang usok. So far I have never seen the Trooper emit so much smoke in all the eight years it has been with us. It is a very well maintained car. Besco 10W30 ang motor oil na ginagamit as prescribed, nilinis na ang air filter, palit na ang oil filters, palit na ang motor oil... Pero wala parin. Using Shell V-Power Diesel eases the problem a little bit pero napakausok parin. The injectors and throttle position sensor have already been replaced free of charge through Isuzu's recall. Also he complains na pumapalya daw ang makina at 1500-1800rpm, minsan daw near total loss of power at that rpm range. I'm suspecting that the EGR is the culprit. What do you think? If it really is the EGR which is the culprit can you prescribe where it can be fixed? Allergic kasi sa casa yung kaibigan ko eh. And nakakatakot idala yung ganong klaseng kotse sa kung saan saan na calibration center.

[Dieseldude]

diko po alam sir, medyo nabadtrip nga ako sa 1st calibration shop na pinuntahan ko kasi ung nozzle replacement na nilagay nila ay hindi kapares nang luma na inalis as in hindi nia kapares ng code prati akong bumabalik nun kexo inaadjust ang minor but they never told me na iba palang code yun, nalaman ko lang yun when i had a a second opinion sa ibang calibration shop 2 weeks after my calibration and repalcement ng nozzle, sa second opinion ng shop na pinuntahan ko ginawa nila binalik ung luma and nilinis, then umayus pero naging mausok din after wards, sabi nung 2nd opinion ko kailanagan ng palitan nozzle so this month lang kakabili ko lang ulit ng bago,,, then pinalagay ko ulit sa 3rd shop na nagcacalibtrate kasi medyo mahal ang singil dun sa 2nd opinion eh.. nways salamat sir. An authorized diesel workshop will know the correct nozzle part number and pressure setting for your car. They have the necessary technical information. They can even check if your originally installed nozzles are correct. It is possible that your nozzles were previously replaced before.

ill just have it re calibrated and have some few adjustment, specifically what adjustment should be done naman in your own opinion? Maximum (full load) fuel setting. This information is stated on the calibration specifications of your injection pump.

[Dieseldude]

Hello there sir! I am asking for a friend to whom we sold our 2002 4JX1 Trooper. Not long after we sold him the car, nahalata niya na matindi ang usok. So far I have never seen the Trooper emit so much smoke in all the eight years it has been with us. It is a very well maintained car. Besco 10W30 ang motor oil na ginagamit as prescribed, nilinis na ang air filter, palit na ang oil filters, palit na ang motor oil... Pero wala parin. Using Shell V-Power Diesel eases the problem a little bit pero napakausok parin. The injectors and throttle position sensor have already been replaced free of charge through Isuzu's recall. Also he complains na pumapalya daw ang makina at 1500-1800rpm, minsan daw near total loss of power at that rpm range. I'm suspecting that the EGR is the culprit. What do you think? This is possible, but we cannot be sure until the car is scanned. Tech II is the correct scan tool for the Isuzu Trooper.

If it really is the EGR which is the culprit can you prescribe where it can be fixed? Allergic kasi sa casa yung kaibigan ko eh. And nakakatakot idala yung ganong klaseng kotse sa kung saan saan na calibration center. I will PM you....

[josef_22]

anyway sir merun ba kaung alam na shop na pwede kong puntahan na maayus? TIA... by the way anong ibig sabhin ng EGR? hehe.. di kasi ako familiar masyado sa mga terminology eh..

[GTi]

Hello there sir! I am asking for a friend to whom we sold our 2002 4JX1 Trooper. Not long after we sold him the car, nahalata niya na matindi ang usok. So far I have never seen the Trooper emit so much smoke in all the eight years it has been with us. It is a very well maintained car. Besco 10W30 ang motor oil na ginagamit as prescribed, nilinis na ang air filter, palit na ang oil filters, palit na ang motor oil... Pero wala parin. Using Shell V-Power Diesel eases the problem a little bit pero napakausok parin. The injectors and throttle position sensor have already been replaced free of charge through Isuzu's recall. Also he complains na pumapalya daw ang makina at 1500-1800rpm, minsan daw near total loss of power at that rpm range. I'm suspecting that the EGR is the culprit. What do you think? This is possible, but we cannot be sure until the car is scanned. Tech II is the correct scan tool for the Isuzu Trooper.

If it really is the EGR which is the culprit can you prescribe where it can be fixed? Allergic kasi sa casa yung kaibigan ko eh. And nakakatakot idala yung ganong klaseng kotse sa kung saan saan na calibration center. I will PM you....

I believe you have encountered quite a number of smoky Troopers before, right? What is usually the problem? Care to share a bit?

[Dieseldude]

I believe you have encountered quite a number of smoky Troopers before, right? What is usually the problem? Care to share a bit?

1) Blocked air filter
2) Blocked CAT
3) Faulty EGR
4) Faulty injectors
5) Faulty turbo

[Ry_Tower]

Dieseldude how long should I change fuel filter if I travel 10K a year and use bosch fuel filter. Been hearing good filtration from a baldwin filter, kaya kaya ng 20,000 or every 2 years change fuel filter if baldwin gamitin ko?

[GTi]

Hmm~ The car is only around 75tkms old. Air filter has been cleaned, injectors have been replaced around 20tkms ago, turbo has also been replaced a bit earlier than that (swindled, it could still be fixed! ). That'll leave us with the EGR and CAT I suppose. What exactly is the CAT again?

[crazy_boy]

Hmm~ The car is only around 75tkms old. Air filter has been cleaned, injectors have been replaced around 20tkms ago, turbo has also been replaced a bit earlier than that (swindled, it could still be fixed! ). That'll leave us with the EGR and CAT I suppose. What exactly is the CAT again?

Catalytic Converter?

usual cause of faulty EGR is use of wrong oil. just make sure you are using API CI-4 or above since CI-4 oil was formulated for vehicles with EGR. i suggest try to clean the EGR first.