Diesel Fuel Injection System Help Desk

[nissan_D21]

Sirs Dieseldude and bennisiozo,
Maybe valve clearance adjustment is the first one that i will go for, its been 40,000kms since last adjustment, by the way sirs the engine ran 280,000 already but rebuilt at 210,000, liners pistons and rings, bearings,valves and guides and injector nozzles.All are oem parts exept for the pistons. If valve clearance adjustment is not the solution, i will have the injection timing checked, then test compression. I just hope it is the solution, or its the inevitable engine overhaul.
thanks guys! Big Help!

[Dieseldude]

Sirs Dieseldude and bennisiozo,
Maybe valve clearance adjustment is the first one that i will go for, its been 40,000kms since last adjustment, by the way sirs the engine ran 280,000 already but rebuilt at 210,000, liners pistons and rings, bearings,valves and guides and injector nozzles.All are oem parts exept for the pistons. If valve clearance adjustment is not the solution, i will have the injection timing checked, then test compression. I just hope it is the solution, or its the inevitable engine overhaul.
thanks guys! Big Help!

You're welcome.

[jiggery2ky2k]

may known issue ba ang CRDI? I know kc na a lot of issues are coupled with toyota's D4D but what about with the CRDI particularly to Hyundai's and Kia's?

thanks

[Dieseldude]

may known issue ba ang CRDI? I know kc na a lot of issues are coupled with toyota's D4D but what about with the CRDI particularly to Hyundai's and Kia's?

thanks

Toyota D4Ds use the Denso common rail system.

Hyundais sold here all use Bosch CRDI (common rail direct injection) systems, and they're good. Kias use Bosch or Delphi, and both are good systems.

Failures we've seen are mostly due to water intrusion, and use of non-original fuel filters. We've also seen failures due to improper work performed by unqualified service mechanics.

[erick_214]

hello dieseldude..tatanong ko lang ulet kung paano yung pagdrain ng water sa fuel filter na sinasabi mo doon sa last kong inquiry? kailangan ko ba tanggalin yung fuel filter? tsaka paano nga pala malalaman kung may water sa fuel filter?

tsaka tanong ko na rin kung twing kailan ba kailangang ipacalibrate yung injection pump?

TIA....

[jiggery2ky2k]

thanks Bro ... I think the only way to prevent all of those issues with the Santa Fe is to ensure that services will be done by Hyundai Mechanic ... I saw the engine and I think it will be very difficult for an untrained person to modify and do some work on the engine as spaces are not enough ...

Toyota D4Ds use the Denso common rail system.

Hyundais sold here all use Bosch CRDI (common rail direct injection) systems, and they're good. Kias use Bosch or Delphi, and both are good systems.

Failures we've seen are mostly due to water intrusion, and use of non-original fuel filters. We've also seen failures due to improper work performed by unqualified service mechanics.

[timo07]

sir dieseldude,
is using high flow filter like the K&N brand much better than the OEM parts?
OEM parts will always assure you of ample air flow at full load and speed as this is designed for its specific engine application. K&N may be a good filter, but it has many part numbers with varying air flow capacities. The K&N dealer should be able to recommend to correct replacement filter to assure you of sufficient air flow at full speed.

setting cost aside, this will have better intake flow than the OE parts but filtration is less superior then the original one?? Better air flow is good. But insufficient filtration is not ok......

what's your take on this as i am thinking of getting a high flow air cleaner.. thanks and more power... The original air filter is engineered and designed to match it's original engine application....... and is often cheaper than K&N.

So this is now up to you.

Hi Dieseldude,

I posted a similar question doon sa stock air filter vs simota/k&n filter thread. I own a D4D Innova. On filtration efficiency, I raised the question if a K&N type (replacement is available for Innova according to Speedlab site) is comparable to the stock. Would you have any idea on this?
On the cost comparison, wouldn't it be more economically beneficial to use the K&N considering it is a washable type and therefore can be used for a very long time? Stock filter costs around P3K for the innova and the replacement K&N, P5K. In two filter changes (at 20K km per change) the cost is recoverable already.

Thanks.

[Dieseldude]

hello dieseldude..tatanong ko lang ulet kung paano yung pagdrain ng water sa fuel filter na sinasabi mo doon sa last kong inquiry? Meroon drain plug sa ilalim ng filter assembly. Luwagan mo ito, then collect the drained fuel para makita mo kung meron tubig. Kung walang lumabas, luwagan mo ang breather plug sa taas ng filter para makasingaw ang vacuum. After draining, operate the manual pump to bleed air.

kailangan ko ba tanggalin yung fuel filter? Depende yan sa location ng filter. Minsan tinatanggal namin ito kung gipit ang pwesto. Madali lang naman alisin ito.

tsaka paano nga pala malalaman kung may water sa fuel filter? Makikita mo and tubig kung kukuha ka ng sample ng drained fuel. Maglagay ka ng malinis a baso sa ilalim ng filter habang dini-drain mo. Makikita mo na nasa ilalim ang tubig. Hindi ito hahalo sa diesel fuel dahil mas mabigat ang unit weight ng tubig.

tsaka tanong ko na rin kung twing kailan ba kailangang ipacalibrate yung injection pump? Pag masama na ang andar.... Or during engine overhaul.

TIA.... You're welcome...

[Dieseldude]

thanks Bro ... I think the only way to prevent all of those issues with the Santa Fe is to ensure that services will be done by Hyundai Mechanic ... Correct if the car is still under warranty. There are also good workshops outside the Hyundai service dealership....

I saw the engine and I think it will be very difficult for an untrained person to modify Be careful on modifications. You can lose your Hyundai warranty...

and do some work on the engine as spaces are not enough ...

[Dieseldude]

Hi Dieseldude,

I posted a similar question doon sa stock air filter vs simota/k&n filter thread. I own a D4D Innova. On filtration efficiency, I raised the question if a K&N type (replacement is available for Innova according to Speedlab site) is comparable to the stock. Would you have any idea on this? No idea. I don't have the air flow specs of both Toyota and K&N. In the absence of specs, you can't go wrong on original.

On the cost comparison, wouldn't it be more economically beneficial to use the K&N considering it is a washable type and therefore can be used for a very long time? Stock filter costs around P3K for the innova and the replacement K&N, P5K. In two filter changes (at 20K km per change) the cost is recoverable already. If the K&N air flow specs match or exceed Toyota's, and if your cost comparison is correct, K&N would be a good alternative....

Thanks..... You're welcome...

[csjl_9]

Good day sir, meron akong 95 hyundai grace with lucas injection pump. ang problem ko is nag le-leak ang diesel sa likod ng injection pump. Anu po bang magandang remedyo dito? Ang sabi kasi nila mahirap daw gawin yung lucas kasi wala daw piyesa dito. Need your advice badly. Thanks

[Dieseldude]

Good day sir, meron akong 95 hyundai grace with lucas injection pump. ang problem ko is nag le-leak ang diesel sa likod ng injection pump. Anu po bang magandang remedyo dito? Ang sabi kasi nila mahirap daw gawin yung lucas kasi wala daw piyesa dito. Need your advice badly. Thanks

Dapat ibaba na ang injection pump, palitan ng overhaul kit, tapos calibrate. Medyo matigas na ang rubber seals and gaskets ng pump mo. Available ang pump overhaul kit and some fast moving parts.

[lytspid]

Hi Sir dieseldude,

ask ko lang if supply pump ba ng d4d ang me problema sa fortuner ko,3.0L variant sya 06 model,, pag pinapatakbo ko ng normal cruising speed hiway or city ok lang,pero pag hinataw ko yun nka floor yun accelarator ng matagal bigla nalang sya nag check engine,tpos e off ko yun ignition sabay neutral ,start kagad sya pero minsan di sya humahatak mabagal ayaw mag accelrate,minsan pag medyo mtgal ko sya inoff mga 3-5 seconds ok na sya hahatak na,,,pero once na inistart ko kagad kpag na check engine,,walang hatak paran nka safe mode pa rin pero wala na yun check engine sign.. isang beses pla normal city driving lang around 10-15kph..bigla nalang nag shut down...ano probs nito sa tingin mo sir? hope to hear from your expert advice..thanks in advance..

[wowiesy]

Toyota D4Ds use the Denso common rail system.

Hyundais sold here all use Bosch CRDI (common rail direct injection) systems, and they're good. Kias use Bosch or Delphi, and both are good systems.

Failures we've seen are mostly due to water intrusion, and use of non-original fuel filters. We've also seen failures due to improper work performed by unqualified service mechanics.

Would Ford's TDCi (found in Everest / Ranger ) be using Bosch (German, through Volvo which Ford owns)? TDCi is Ford's CRDi counterpart di ba?
Tapos naka VGT sya? Can you PM me your contact info and shop address? I'm thinking of lining up my auto to your shop for that 3rd opinion =)...

Categorical ba yung statement na (based on your experience) ay Innova D4D has statistically higher probability of relatively earlier failure because it uses Denso compared to others that use Bosch?


I'll try to get a 2nd opinion on my Innova soon. Based on my backreading of this thread, most (ata) of the symptoms kung supply pump problem is also related to starting... in my case, starting is fine naman.. problem lang talaga is kapag paakyat (although parang better na now that the alternator pulley has been replaced) but kung sa NLEX acceleration, hirap pa rin talaga sya (either that or nag aadjust na rin ako ng driving habits ko )...

[Dieseldude]

Hi Sir dieseldude,

ask ko lang if supply pump ba ng d4d ang me problema sa fortuner ko,3.0L variant sya 06 model,, pag pinapatakbo ko ng normal cruising speed hiway or city ok lang, pero pag hinataw ko yun nka floor yun accelarator ng matagal bigla nalang sya nag check engine, Na scan na ba Fort mo? Ano ang fault code or fault description?

tpos e off ko yun ignition sabay neutral, start kagad sya pero minsan di sya humahatak mabagal ayaw mag accelrate, minsan pag medyo mtgal ko sya inoff mga 3-5 seconds ok na sya hahatak na,,,pero once na inistart ko kagad kpag na check engine,,walang hatak paran nka safe mode pa rin pero wala na yun check engine sign.. isang beses pla normal city driving lang around 10-15kph..bigla nalang nag shut down...ano probs nito sa tingin mo sir? hope to hear from your expert advice..thanks in advance.. This could be a supply pump problem. Or it could also be something else. Your car needs to be scanned for any logged faults. I will PM you on this.

[Dieseldude]

Would Ford's TDCi (found in Everest / Ranger ) be using Bosch (German, through Volvo which Ford owns)? TDCi is Ford's CRDi counterpart di ba? Yes, Everest and Ranger both use Bosch.

Tapos naka VGT sya? Can you PM me your contact info and shop address? I'm thinking of lining up my auto to your shop for that 3rd opinion =).. I will.

Categorical ba yung statement na (based on your experience) ay Innova D4D has statistically higher probability of relatively earlier failure because it uses Denso compared to others that use Bosch? From experience, I have have seen more failures on the Denso supply pump than Bosch's.

I'll try to get a 2nd opinion on my Innova soon. Based on my backreading of this thread, most (ata) of the symptoms kung supply pump problem is also related to starting... Very often, but not always.

in my case, starting is fine naman.. problem lang talaga is kapag paakyat (although parang better na now that the alternator pulley has been replaced) but kung sa NLEX acceleration, hirap pa rin talaga sya (either that or nag aadjust na rin ako ng driving habits ko )...Best thing to do is have your car tested on a chassis dynamometer, but it can cost you. Test is objective as power is verified against reference specs.

[rnquiamb]

Sir my ride is 2002 kia sedona. Tanung ko lang kung anu nagiging cause ng fuel knock? At paanu malalaman kung fuel knock nga o yung mismo engine ang maingay? Posible bang injection pump timing at injector ang problem? Ang lakas kasi ng taktaktak na tunog eh kahit mainit na ang makina.

[Dieseldude]

Sir my ride is 2002 kia sedona. Tanung ko lang kung anu nagiging cause ng fuel knock? At paanu malalaman kung fuel knock nga o yung mismo engine ang maingay? Posible bang injection pump timing at injector ang problem? Ang lakas kasi ng taktaktak na tunog eh kahit mainit na ang makina.

If knock seems to come from all cylinders, this is a possible injection pump timing problem. If knock is isolated and seems to come from one or two cylinders only, this could be a sign of a faulty injector/s.

Does your Sedona have the Bosch VE rotary/mechanical injection pump?

How did the problem start? After work was performed on the pump and/or injectors?

Are you experiencing low power with lots of black smoke?

[Dieseldude]

Sir my ride is 2002 kia sedona. Tanung ko lang kung anu nagiging cause ng fuel knock? At paanu malalaman kung fuel knock nga o yung mismo engine ang maingay? Posible bang injection pump timing at injector ang problem? Ang lakas kasi ng taktaktak na tunog eh kahit mainit na ang makina.

If knock seems to come from all cylinders, this is a possible injection pump timing problem. If knock is isolated and seems to come from one or two cylinders only, this could be a sign of a faulty injector/s.

Does your Sedona have the Bosch VE rotary/mechanical injection pump?

How did the problem start? After work was performed on the pump and/or injectors?

Are you experiencing low power with lots of black smoke?

[rnquiamb]

Bosch yung pump ko. Bali na calibrate lang siya recently and marami parts na pinalitan. Nung andar ng engine after calibrate wala siyang knock pero wala naman power yung engine. Sabi nung mechanic eh ni retard niya timing ng injection pump pero napansin ko na nagkaroon ng knock na malakas. Mukhang sa lahat ng cylinder yung knock at medyo low power pa rin at me marami black smoke during accelerating pero at idling wala naman smoke yung sedona. My sedona pala si automatic. Nag perform ba kayo ng injection timing sa shop nyo? Kasi pabalik balik na ako dun sa shop eh ang reason niya is engine na daw ang maingay. Thanks for the rapid reply sir...