Diesel Fuel Injection System Help Desk

**Ry_Tower** · April 29th, 2015 11:45 PM

Originally Posted by 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!

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** · April 29th, 2015 11:49 PM

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

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**Ry_Tower** · April 30th, 2015 10:05 AM

Originally Posted by rodetor

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

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

**Dieseldude** · May 5th, 2015 01:51 PM

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** · May 12th, 2015 06:11 PM

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** · May 13th, 2015 02:46 PM

Originally Posted by 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!

the turbo is spooling/building boost

cmmiw.

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Originally Posted by 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!

the turbo is spooling/building boost

cmmiw.

**Dieseldude** · May 13th, 2015 10:57 PM

Originally Posted by 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!

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** · May 13th, 2015 11:00 PM

Originally Posted by 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!

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

**glenn manikis** · May 14th, 2015 05:32 AM

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

**testament11** · May 14th, 2015 06:48 AM

Originally Posted by Ry_Tower

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.