Diesel Fuel Injection System Help Desk

[crazy_boy]

sir DD, your comments on maintaining a crdi version of getz. are the injectors/fuel system expensive to replace/repair when needed?

[Dieseldude]

Sir DD,

Normal ba na may lumalabas na kaunting usok galing sa compressor outlet ng turbo papunta sa intercooler?
2.8 jdm pajero 98, AT, 4m40 engine. Normal ito...

Salamat ng marami, You're welcome...

Ollopasagla

[Dieseldude]

sir DD, your comments on maintaining a crdi version of getz. are the injectors/fuel system expensive to replace/repair when needed?

This is a very good car. All common rail injectors (Bosch, Denso, etc.) are expensive to repair. Getz injectors are well built and last long....as long as original fuel filters are used, and injectors are not touched by unauthorized people.

[ACC]

Sir DD pls help... I have my 2011 montero suddenly giving loud engine knocking noise and thick black smoke pag slowly going up sa bridge or basta pataas. Tunog nya is loud loose tappet sound pero malakas talaga na takatakatak sound. Nkakatakot prang me mababasag na pyesa. Pag nasimulan nun khit sa patag basta aarangkada uusok ng husto tpos at certain rpm mga 1.7 mag knock na sya. Need ko biritin agad pra bumilis na at mawala un sound at usok.

Pag rekta sa hway wala nmn prob, ganun din pag naka idle. Do you think me prob na injector ko? 46kkm p lng odo rdg ng car ko sir. Nagpalinis ako egr nun 40kkm at palit lahat fuel n air filter. Pls help advise sir. Nakakasira ba ng engine un knocking sound na yun? Pls help tnx!

[Dieseldude]

Sir DD pls help... I have my 2011 montero suddenly giving loud engine knocking noise and thick black smoke pag slowly going up sa bridge or basta pataas. Tunog nya is loud loose tappet sound pero malakas talaga na takatakatak sound. Nkakatakot prang me mababasag na pyesa. Pag nasimulan nun khit sa patag basta aarangkada uusok ng husto tpos at certain rpm mga 1.7 mag knock na sya. Need ko biritin agad pra bumilis na at mawala un sound at usok.

Pag rekta sa hway wala nmn prob, ganun din pag naka idle. Do you think me prob na injector ko? I don't think so.

46kkm p lng odo rdg ng car ko sir. Nagpalinis ako egr nun 40kkm at palit lahat fuel n air filter. Parang EGR ang problem. Pero hindi ako sure dahil napalinis mo na ito. Btw, hindi naaayos sa linis ang sirang EGR.

Pls help advise sir. Nakakasira ba ng engine un knocking sound na yun? Pls help tnx! Shempre meron pwdeng masira kung meron abnormal na tunog. Dapat ma-identify kung ano talaga ang problem.

[ACC]

Thanks sa reply sir DD...
I brought my Monty sa casa and they performed SIQL on it. Wala naman daw na-detect na problem pero they heard the knocking sound with minor jerking ng engine after the test... When the engine revving has been released.

They checked the air filter and found it clean since it was just replaced 2 mos ago. The mechanic checked the connectors if ok too.

As a last step, they just hosed the exhaust with water to take out the carbon deposits

When I drove it home still theres some excessive white smoke. But as I used it the following day, even today the heavy smoking and knocking sound did not occur anymore.

Could the SIQL have corrected the setting of my injector or anything? Hopefully its really fixed now.

[Dieseldude]

Thanks sa reply sir DD...
I brought my Monty sa casa and they performed SIQL on it. Wala naman daw na-detect na problem pero they heard the knocking sound with minor jerking ng engine after the test... When the engine revving has been released.

They checked the air filter and found it clean since it was just replaced 2 mos ago. The mechanic checked the connectors if ok too.

As a last step, they just hosed the exhaust with water to take out the carbon deposits

When I drove it home still theres some excessive white smoke. But as I used it the following day, even today the heavy smoking and knocking sound did not occur anymore.

Could the SIQL have corrected the setting of my injector or anything? What is SIQL?

Hopefully its really fixed now. Sana, but I doubt it. From experience, the problem may happen again if the the fault was not identified because the proper fix was not applied.

[ACC]

Hi sir DD... Dont know din meaning but it is the diagnostic test and correction of setting thru PC nila. Until now ok pa rin sir... Hopefully ok na talaga un nging prob. Tnx sir!

[POPPIX]

Sir DD,

May paraan po ba na malaman kung walang internal leak ang injector bago ikabit? Walang paraan.

Yung mga sinasabi po b nilang modified ung 56k pataas ang serial no. e ng kakaron din ng internal leak? Hindi ko alam. Pero sa palagay ko, less prone to internal leakage ang upgraded injectors. Inupgrade ito ng Isuzu para ma correct yung problem.


Pwede po kaya na madaan pa sa linis ang injector baka kasi napuno lng ng carbon yung nozzle ng injector? Pwede linisin kung madumi lang. Hindi maayos sa linis kung meron damage ang internal parts.

Pwede din po kaya na pag palitin ng internal parts ung mga injector para mabuo kung solenoid lang ang sira ng isa at yung isa naman ay yung oring sa loob? Hindi pwede pagpalitin ang internal parts dahil matched ito lahat; magbabago ang injector performance.


Salamat po ulit,


POPPIX

Sir DD,


Napalitan ko na po ulit yung mga injectors, di npo tumataas yung langis, pero medyo malakas ko ang vibration ramdam po sa loob lalo na pag naka idle (kahit naka neutral-mas malakas pag nasa drive nasa drive naman po mas mahina).


Ano po kaya ang problema nito?



Salamat,


POPPIX

[glenn manikis]

SIR DD.... yung diesel ENGINE ko na 2.0 VGT a/t Turbo (MB engine).... pag nakahinto then nilagay ko sa DRIVE... parang tumataas ang idling or parang nag on ang turbo at may naririnig akong mahinang sound na parang tumutope... ngayon ko lang napancin kasi hindi naman ako nagbubukas ng bintana... hindi ko alam kung normal ba o hindi...

Need ko na po ba linisin ang egr?

[Dieseldude]

Hi sir DD... Dont know din meaning but it is the diagnostic test and correction of setting thru PC nila. Until now ok pa rin sir... Hopefully ok na talaga un nging prob. Tnx sir!

You're welcome...

[Dieseldude]

SIR DD.... yung diesel ENGINE ko na 2.0 VGT a/t Turbo (MB engine).... pag nakahinto then nilagay ko sa DRIVE... parang tumataas ang idling or parang nag on ang turbo at may naririnig akong mahinang sound na parang tumutope... ngayon ko lang napancin kasi hindi naman ako nagbubukas ng bintana... hindi ko alam kung normal ba o hindi...

Need ko na po ba linisin ang egr?

Please identify your car, make, year model, and engine...

[keith22]

My 2007 Ford Ranger Trekker 2.5 AT has terrible fuel consumption. I already changed all the fluids, filters(air, fuel), even had it diagnosed by Berrima who performed fuel line purge on it, to no avail. When I got the unit, there was a mild knocking sound and CEL which turned out to be the EGR whic I also replaced. We tried cleaning it first but the problem persisted. All of these and I'm still getting 5.5-6 KM/L city. What's annoying is that even on long trips such as Subic/Baguio, the best that I can do is 7.5 KM/L. It is also spewing black smoke during sudden acceleration and when the RPM goes over 3K RPM. I also have an OBD2 scan tool and from the reading, it seems that my injectors are working fine (via pressure reading). It also experience surging in terms of throttle response which I thought was due to a faulty Accelerator Pedal Position Sensor which I also replaced and tested, but still the symptoms persisted.

The only thing that I haven't done is to have the intake manifold cleaned. Do you think this will solve the high fuel consumption/black smoke problem during high RPM's? Do you have any other recommendations?

[glenn manikis]

Please identify your car, make, year model, and engine...

SIR ssanyong actyon.. 2008 a/t... D20DT... 2.0 VGT... TURBO

[Dieseldude]

SIR DD.... yung diesel ENGINE ko na 2.0 VGT a/t Turbo (MB engine).... pag nakahinto then nilagay ko sa DRIVE... parang tumataas ang idling or parang nag on ang turbo at may naririnig akong mahinang sound na parang tumutope... ngayon ko lang napancin kasi hindi naman ako nagbubukas ng bintana... hindi ko alam kung normal ba o hindi...

Need ko na po ba linisin ang egr?

Normal ito sa palagay ko. Nagbabago talaga ang tunog ng engine pag inilagay natin sa drive ang transmission dahil nagkakaroon ng load ang engine,

[Dieseldude]

My 2007 Ford Ranger Trekker 2.5 AT has terrible fuel consumption. I already changed all the fluids, filters(air, fuel), even had it diagnosed by Berrima who performed fuel line purge on it, to no avail. When I got the unit, there was a mild knocking sound and CEL which turned out to be the EGR whic I also replaced. We tried cleaning it first but the problem persisted. All of these and I'm still getting 5.5-6 KM/L city. What's annoying is that even on long trips such as Subic/Baguio, the best that I can do is 7.5 KM/L. It is also spewing black smoke during sudden acceleration and when the RPM goes over 3K RPM. I also have an OBD2 scan tool and from the reading, it seems that my injectors are working fine (via pressure reading). It also experience surging in terms of throttle response which I thought was due to a faulty Accelerator Pedal Position Sensor which I also replaced and tested, but still the symptoms persisted.

The only thing that I haven't done is to have the intake manifold cleaned. Do you think this will solve the high fuel consumption/black smoke problem during high RPM's? Do you have any other recommendations?

What fuel system is on it; common rail or VE rotary pump?

[keith22]

^^It's the common rail version (TDCi).

[glenn manikis]

Normal ito sa palagay ko. Nagbabago talaga ang tunog ng engine pag inilagay natin sa drive ang transmission dahil nagkakaroon ng load ang engine,

thanks a lot sir...!!! maasahan ka po talaga...

sir magkano magpalinis ng egr sa inyo?

[glenn manikis]

My 2007 Ford Ranger Trekker 2.5 AT has terrible fuel consumption. I already changed all the fluids, filters(air, fuel), even had it diagnosed by Berrima who performed fuel line purge on it, to no avail. When I got the unit, there was a mild knocking sound and CEL which turned out to be the EGR whic I also replaced. We tried cleaning it first but the problem persisted. All of these and I'm still getting 5.5-6 KM/L city. What's annoying is that even on long trips such as Subic/Baguio, the best that I can do is 7.5 KM/L. It is also spewing black smoke during sudden acceleration and when the RPM goes over 3K RPM. I also have an OBD2 scan tool and from the reading, it seems that my injectors are working fine (via pressure reading). It also experience surging in terms of throttle response which I thought was due to a faulty Accelerator Pedal Position Sensor which I also replaced and tested, but still the symptoms persisted.

The only thing that I haven't done is to have the intake manifold cleaned. Do you think this will solve the high fuel consumption/black smoke problem during high RPM's? Do you have any other recommendations?

hindi kaya sir... barado or naka bend ang fuel hose return?

[BoyBawang]

would blanking plates sa EGR ng D4D engine cause any issues? would it help in fuel consumption sir and pass the emmission tests? thanks sir Dieseldude