Diesel Fuel Injection System Help Desk

[Dieseldude]

Hi thanks... kaya pala malakas ang kain ng fuel dahil sa palitin na air filter.. kaya bang I-DIY yan sir? KIA CARENS ang sasakyan.

Of course. Bumili ka ng air filter element, tapos ikabit mo........Solved. Good luck.

[012512]

Of course. Bumili ka ng air filter element, tapos ikabit mo........Solved. Good luck.

How much nga pala ang air filter sir?

[Dieseldude]

Hi sir DieselDude,

We have a 2003 Pajero fieldmaster..Ang symptoms po ng ride namin is hard starting sya sa umaga and sabay it blows white smoke and rough idling. If i-pump yung fuel primer sa fuel filter gaganda andar nya maghapon. Kinabukasan ng umaga hard starting nanaman sya and we have to pump the fuel filter primer again, after than maganda na naman andar nya ulit. We last calibrated our injection pump Sept 2012. We also replaced Glow Plugs this month lang.

May nabasa din po pala ako sa internet esp. in Australia na pag hard starting with rough idling and white smoke ang 4m40 at pag pinump ang fuel filter primer at gaganda na ang andar nito ay baka raw Oil seal na ng injection pump ang may sira. Na sabi daw doon ay air is sipping into the pump at umaatras ung fuel pabalik ng Filter/tank. Duda nga ako sa huling nagcalibrate, kasi baka hindi maayos ang pagka-calibrate o hindi maganda ang pinalit na Oil seal/O-ring.

Nung binalik namin sa dating nagcalibrate at sinabi namin ang problema at symptoms ng sasakyan ay alam na raw nila kung ano ang gagawin. Ang sabi daw nila ay i-aadjust lang daw ang injection pump timing para daw hindi mahirapan kumuha ng diesel fuel. Nung na adjust na nila ang injection pump timing ay gumaspang naman ang andar, at kinabukasan nung pinaandar namin ng umaga ay ganun parin ang sakit nya .

Anyways yun lang po.. any advice from you sir can be very helpful po sa amin..

This is an injection pump problem.

[testament11]

Hi guys, may problema kasi ako sa Pajero 4M40 ko.

First thing in the morning pag pina-start, ok naman, one click starting. Kaso ang problema, after ilang minutes, namamatay na parang kinakapos sa krudo. There are times pa nga na tinatakbo ko na siya ng around 1 km from home eh bigla bigla nalang kinakapos ng krudo. Once this happen, kelangan bombahin pa yun accelerator para lang mag-start yun makina. After nito, di naman na ako namamatayan. Ano kaya possible problem nito? Feel ko parang pinapasok ng hangin yun fuel line ko.

Fuel filter was replaced November last year lang. Donaldson pa nga fuel filter nito.

Thanks sa makakatulong!

[jakewise]

I suspect a dirty fuel line.. Check your fuel filter again kahit na you just changed it, baka madumi na. If madumi na, I suggest you have your fuel tank cleaned, baka madami na din dumi

[ParticleX]

Check yung fuel lines, nangyari na sa akin yun nung nagpalit rin ako ng fuel filter. May nakakapasok na hangin so ginawa ko pinalitan ko na lang yung dalawang short sections ng hose galing fuel filter then replace clamps

[kidgz]

pag may hangin ang fuel lines,kailangan e bleed para solid ang cruedo pumapasok

[dr. d]

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Check yung fuel lines, nangyari na sa akin yun nung nagpalit rin ako ng fuel filter. May nakakapasok na hangin so ginawa ko pinalitan ko na lang yung dalawang short sections ng hose galing fuel filter then replace clamps

palit hose for air? hindi ba overkill yan? hindi ba puedeng i-bleed out yung hangin?

[ParticleX]

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palit hose for air? hindi ba overkill yan? hindi ba puedeng i-bleed out yung hangin?

YMMV, nung nag bleed kasi ako after a few hours hard start nanaman, and seeing na matigas na masyado yung hose eh I decided to replace it na lang. Wala pa siguro 100 petots nagastos ko for a few feet of hose and new clamps.

15mins na ako nagpa-pump di pa rin tumitigas, saka luma na rin yung hose. Kapagod kaya mag bleed pag ganun

[Dieseldude]

Hi guys, may problema kasi ako sa Pajero 4M40 ko.

First thing in the morning pag pina-start, ok naman, one click starting. Kaso ang problema, after ilang minutes, namamatay na parang kinakapos sa krudo. There are times pa nga na tinatakbo ko na siya ng around 1 km from home eh bigla bigla nalang kinakapos ng krudo. Once this happen, kelangan bombahin pa yun accelerator para lang mag-start yun makina. After nito, di naman na ako namamatayan. Ano kaya possible problem nito? Feel ko parang pinapasok ng hangin yun fuel line ko.

Fuel filter was replaced November last year lang. Donaldson pa nga fuel filter nito.

Thanks sa makakatulong!

Injection pump problem.......most probably.

[Ry_Tower]

Hi guys, may problema kasi ako sa Pajero 4M40 ko.

First thing in the morning pag pina-start, ok naman, one click starting. Kaso ang problema, after ilang minutes, namamatay na parang kinakapos sa krudo. There are times pa nga na tinatakbo ko na siya ng around 1 km from home eh bigla bigla nalang kinakapos ng krudo. Once this happen, kelangan bombahin pa yun accelerator para lang mag-start yun makina. After nito, di naman na ako namamatayan. Ano kaya possible problem nito? Feel ko parang pinapasok ng hangin yun fuel line ko.

Fuel filter was replaced November last year lang. Donaldson pa nga fuel filter nito.

Thanks sa makakatulong!

Namamatayan ka kahit warm-up pa lang. Sa akin kasi kapag less than 3.minutes warm-up ko namamatayan ako kahit nabiyahe ko na din ang sasakyan.

Nagsearch ako sa net and one of the problem na malapit na malapit sa symptoms ko ay yung leak daw sa topmost gasket sa injection pump. Puwede papalitan yan pero matrabaho. Square yung gasket at hindi o-ring type. Pero may solution na simple. Put engine oil stop leak sa fuel tank. Same ratio as with 2t oil. 5ml for every liter. Seems to be working for me after 3 days of use. Pero usually mga 1week daw marerejuvinate ang seals na makunat na kay nakakapasok hangin. Read ka dun sa pajero thread natin. Hehe. Baka makatulong.

[rodetor]

Check your fuel hose lines muna. Baka may maliit na butas o may crack o may maluwag na hose clamps.

Sent from my Starmobile UP+ using Tapatalk

[Ry_Tower]

Check your fuel hose lines muna. Baka may maliit na butas o may crack o may maluwag na hose clamps.

Sent from my Starmobile UP+ using Tapatalk

Yup, possible culprit din nag yang hairline cracks or little prick cracks sa fuel line especially yung malapit sa fuel tank.

[Dieseldude]

Remove black fuel hose between fuel filter and injection pump.

Replace it with a clear transparent hose.

Start engine to check for air bubbles on this clear hose.

[edansramos]

Hi Boss Dieseldude,

I'm experiencing a humming noise at 2,000 RPM while running. It sounds like an electric motor, noise is constant at 2,000 RPM. It's not that loud though, i can only hear it when i'm traveling at night. I don't experience loss of power. What could probably cause this? Engine is 2KDFTV. Thanks, Boss!

[innova2013]

Hi Boss Dieseldude,

I'm experiencing a humming noise at 2,000 RPM while running. It sounds like an electric motor, noise is constant at 2,000 RPM. It's not that loud though, i can only hear it when i'm traveling at night. I don't experience loss of power. What could probably cause this? Engine is 2KDFTV. Thanks, Boss!

the turbo is spooling/building boost

cmmiw.

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Hi Boss Dieseldude,

I'm experiencing a humming noise at 2,000 RPM while running. It sounds like an electric motor, noise is constant at 2,000 RPM. It's not that loud though, i can only hear it when i'm traveling at night. I don't experience loss of power. What could probably cause this? Engine is 2KDFTV. Thanks, Boss!

the turbo is spooling/building boost

cmmiw.

[Dieseldude]

Hi Boss Dieseldude,

I'm experiencing a humming noise at 2,000 RPM while running. It sounds like an electric motor, noise is constant at 2,000 RPM. It's not that loud though, i can only hear it when i'm traveling at night. I don't experience loss of power. What could probably cause this? Engine is 2KDFTV. Thanks, Boss!

This could be anything: alternator bearings, belt tensioner bearings, wheel bearings, etc. I don't think it's the turbo because turbos make hissing or higher pitch sounds.

[Ry_Tower]

Hi guys, may problema kasi ako sa Pajero 4M40 ko.

First thing in the morning pag pina-start, ok naman, one click starting. Kaso ang problema, after ilang minutes, namamatay na parang kinakapos sa krudo. There are times pa nga na tinatakbo ko na siya ng around 1 km from home eh bigla bigla nalang kinakapos ng krudo. Once this happen, kelangan bombahin pa yun accelerator para lang mag-start yun makina. After nito, di naman na ako namamatayan. Ano kaya possible problem nito? Feel ko parang pinapasok ng hangin yun fuel line ko.

Fuel filter was replaced November last year lang. Donaldson pa nga fuel filter nito.

Thanks sa makakatulong!

Musta na problem mo bro? Puwede din pala problem is shut-off valve. Baka sira na kasi.

[glenn manikis]

Fuel filter ️Sir ... Baka madumi na fuel tank mo.. Kaya recurring ang problem mo..

[testament11]

Musta na problem mo bro? Puwede din pala problem is shut-off valve. Baka sira na kasi.

Ni-set aside muna namin yun problem for a month kasi inayos muna namin yun power steering lines. Now that ok na yun steering ng sasakyan, ito na ang next namin na tututukan.

As of last Tuesday, same problem pa rin. Nagdecide kami na dalhin ko yun sasakyan sa CDC once magkaroon ako ng free time. May hinala na rin kasi kami ng erpats ko na injection pump problem na ito.