Diesel Fuel Injection System Help Desk

[fabilioh]

First step: Check & replace Fuel Filter/Air cleaner. Replace if necessary, and see if emission improves.

180k kms is quite high....definitely, some wear on the engine and fuel system. "Just cleaning" is a misconception. When you bring your pump/injectors to a reputable shop, injectors are cleaned, tested for spray pattern, opening pressure, and backleakage. If failed, parts need to be replaced and calibrated to specs. etc...Pumps, cleaned, disassembled, parts inspected, replaced as needed, then mounted on test bench for calibration (bringing it back to original OE/like new condition)

Regarding smoke: White smoke would indicate a possible engine problem. Black smoke will most likely be related to your fuel systems (pump and Injectors), or air starvation.

Bear in mind that your vehicle has accumulated a lot of mileage.

thanks dieseldude! I regularly change my fuel and air filters eery 5k kms, but it still smokes. can you recommend me a good shop that can do all of these? mine has white smoke by the way.

[erick_214]

Hi DieselDude,

tanong ko lang...nagtataka kasi ako kung bakit yung mga diesel engine dito sa atin eh parang ang bilis ata umusok lalo na yung Isuzu? Pero sa ibang countries naman eh hindi. I have a van kasi na galing japan and 260,xxx na yung ODO niya eh hindi naman mausok at wala naman prob sa engine...Ano ba ang mayron sa makina ng mga sasakyan sa ibang banda na wala yung makita dito sa atin?

[izzy06]

sir, bakit kaya hanggang 120km/hr lang ang top speed ng nissan frontier ko 2000 model 4x2 90km mileage, kahit off na ang a/c ko. para kasing pigil siya humatak pero tahimik naman at walang usok.

[Dieseldude]

sir, bakit kaya hanggang 120km/hr lang ang top speed ng nissan frontier ko 2000 model 4x2 90km mileage, kahit off na ang a/c ko. para kasing pigil siya humatak pero tahimik naman at walang usok.

Baka barado ang fuel and/or air filter.

Or baka naman accelerator cable adjustment lang...... Pag sagad ng accelerator pedal, dapat sumagad rin ang injection pump lever sa maximum speed stopper bolt.

Kung hindi mag-improve, baka injection pump calibration ang kelangan.

[Dieseldude]

Hi DieselDude,

tanong ko lang...nagtataka kasi ako kung bakit yung mga diesel engine dito sa atin eh parang ang bilis ata umusok lalo na yung Isuzu? Pero sa ibang countries naman eh hindi. I have a van kasi na galing japan and 260,xxx na yung ODO niya eh hindi naman mausok at wala naman prob sa engine...Ano ba ang mayron sa makina ng mga sasakyan sa ibang banda na wala yung makita dito sa atin?

Siguro dahil sa poor maintenance sa atin; baka dahil din sa kagipitan sa datong. Puro tayo remedyo at di nasusunod ang regular service schedules. Maayos siguro ang pagkaka-maintain ng ride mo kaya mahaba ang buhay.

Marami din diesel workshops dito na kulang sa training, technical information, at test equipment. Sa ibang bansa, umaandar ang batas lalo sa emission, malaki ang penalty at di malalagyan ang nanghuhuli. Dito, sa sobrang gustong makatipid, yan ang tawag na "napapamurang mahal". Pag di tama ang trabaho, umiiksi ang buhay ng makina natin.

[Dieseldude]

thanks dieseldude! I regularly change my fuel and air filters eery 5k kms, but it still smokes. can you recommend me a good shop that can do all of these? mine has white smoke by the way.

Oil change has no effect on smoke.

Does white smoke diminish as temperature increases?

If it does, you will most likely need an engine overhaul. But do a compression test just to make sure.

[fabilioh]

Oil change has no effect on smoke.

Does white smoke diminish as temperature increases?

If it does, you will most likely need an engine overhaul. But do a compression test just to make sure.

actually mausok pa rin even after the engine has warmed up.

what's a good place to have it checked, ok ba sa central diesel?


thanks!

[Dieseldude]

actually mausok pa rin even after the engine has warmed up.

what's a good place to have it checked, ok ba sa central diesel?


thanks!

Difficult question to answer because I am with Central Diesel..hehehe

[izzy06]

sir diesel dude, ano po ba yung black liquid (could be oil pero malabnaw) na pumapasok sa tubo papuntang air filter?
masama po ba ito kahit di naman nakakaabot dun sa may air filter mismo?
paano po ba maiiwasan ito?
thanks po ulit

[rmpmla]

sir diesel dude, ano po ba yung black liquid (could be oil pero malabnaw) na pumapasok sa tubo papuntang air filter?
masama po ba ito kahit di naman nakakaabot dun sa may air filter mismo?
paano po ba maiiwasan ito?
thanks po ulit

possibly the oil mist/gas coming from the PCV.

Others install an oil catch can to avoid the oil/gas mixture going to the turbo

[Dieseldude]

sir diesel dude, ano po ba yung black liquid (could be oil pero malabnaw) na pumapasok sa tubo papuntang air filter?
masama po ba ito kahit di naman nakakaabot dun sa may air filter mismo?
paano po ba maiiwasan ito?
thanks po ulit

Okay yung suggestion ni rmpmla.

[kalyehero16]

Supply pump problem
Sir Dieseldude,

Central Diesel specializes in Bosch. Can you also repair a Denso supply pump? I have a innova d4d engine which carries the Denso brand supply pump. I have been experiencing the dreaded stalling problems. Can I bring the unit to Central Diesel and have it repaired or replaced? I don't want to bring it to a Denso accredited shop anymore. Since I have heard of positive feedbacks from forumers and car clubs that Central Diesel can cater to any Diesel related problems.

Thank you and more power sir.

Kalyehero16

[fabilioh]

Difficult question to answer because I am with Central Diesel..hehehe

haha, sorry sir hindi ko alam so ok pala sa central diesel hehehehe. around how much aabutin sir for calibration/servicing of nozzles/pump ng isuzu hi-lander? kahit pm mo nalang ako sir, thanks