Diesel Fuel Injection System Help Desk

**Dieseldude** · July 4th, 2013 11:58 PM

Hi sir tanong ko lang kasi mausok yung pickup ko Isuzu LS 1994 (medyo white/bluish) lalo na pag nag cchange gear / paakyat yung daan
Your car is 19 years old, with very high mileage probably.

- When do i change my piston rings & cylinder head gaskets?
If your car was well maintained and never experienced an overheat condition, it would probably need an overhaul every 250k kms. But please verify this with Isuzu.

ang sabi kasi ng mekaniko na nag calibrate ng makina ko (valve clearance & nozzle cleaning last 2011) kelangan ko daw magpalit nun.. kasi hindi pa rin nawala yung usok eh tapos may lumalabas na usok parang steam sa may dipstick. Possible yan dahil malakas na ang blowby ng engine.

- Kelangan ko ba ipa cleaning yung Injection pump or ipa adjust? - mahina humatak.. Walang magagawa ang cleaning or adjustment ng injection pump at injectors kung worn out na sila. The diesel injection system is as old as the car. Sa palagay ko, dapat ipa evaluate mo nang mabuti kung engine, or pump, or pareho sila ang dapat ma-overhaul.

kaka change oil ko lang last month (oil filter & air filter changed)
*can you pm me how much singil ng shop niyo for valve clearance tska nozzle cleaning pati check up?
Dalhin mo nalang sa Central for ocular inspection......no charge....

thanks sir

**cokezero** · July 5th, 2013 12:45 AM

Originally Posted by Dieseldude

Hi sir tanong ko lang kasi mausok yung pickup ko Isuzu LS 1994 (medyo white/bluish) lalo na pag nag cchange gear / paakyat yung daan
Your car is 19 years old, with very high mileage probably.

- When do i change my piston rings & cylinder head gaskets?
If your car was well maintained and never experienced an overheat condition, it would probably need an overhaul every 250k kms. But please verify this with Isuzu.

ang sabi kasi ng mekaniko na nag calibrate ng makina ko (valve clearance & nozzle cleaning last 2011) kelangan ko daw magpalit nun.. kasi hindi pa rin nawala yung usok eh tapos may lumalabas na usok parang steam sa may dipstick. Possible yan dahil malakas na ang blowby ng engine.

- Kelangan ko ba ipa cleaning yung Injection pump or ipa adjust? - mahina humatak.. Walang magagawa ang cleaning or adjustment ng injection pump at injectors kung worn out na sila. The diesel injection system is as old as the car. Sa palagay ko, dapat ipa evaluate mo nang mabuti kung engine, or pump, or pareho sila ang dapat ma-overhaul.

kaka change oil ko lang last month (oil filter & air filter changed)
*can you pm me how much singil ng shop niyo for valve clearance tska nozzle cleaning pati check up?
Dalhin mo nalang sa Central for ocular inspection......no charge....

thanks sir

maraming thank you sir!

odo reading at 230k na and yes hindi pa po nag ooverheat..

will try to visit your shop next week

**babynos01** · July 9th, 2013 10:23 AM

Sir Dieseldude goodmorning.
How do we know if it is the right time to have calibration?
Pwede pa PM din sir kung magkano ang usual rates for CRDi engine?

Secondly sir, biglang namatay yung car namin kaninang umaga while driving. Buti nalang mabagal takbo ko. Di-D A/T.
Mor\e or less sir, is this SCV failure? If SCV failure sir, pwede pa PM din how much kung papalitan ng bago ( may nabasa ako na meron daw aftermarket Denso na mas mahaba) including MUT initialization.

Thank you sir.

**Dieseldude** · July 12th, 2013 09:18 AM

Sir Dieseldude goodmorning.
How do we know if it is the right time to have calibration?
Usually, after a scan is performed and a fuel system fault is detected.

Pwede pa PM din sir kung magkano ang usual rates for CRDi engine?

Secondly sir, biglang namatay yung car namin kaninang umaga while driving. Buti nalang mabagal takbo ko. Di-D A/T.
Mor\e or less sir, is this SCV failure? Possible, but there may be other faults that could cause the same problem.

If SCV failure sir, pwede pa PM din how much kung papalitan ng bago ( may nabasa ako na meron daw aftermarket Denso na mas mahaba) including MUT initialization.

Thank you sir.

**cool_freeze** · August 6th, 2013 12:47 PM

Sir Dieseldude question po.
My ride is a Isuzu Crosswind XUV.
Napansin ko po na parang humihina na ang hatak nya and medyo lumalakas ang consumption ng diesel.
From 12Km/li eh naging 10Km/li nalang sha. tapos may time na nagpunta ako ng nasugbu batangas and parang hirap na sha akyatan.
Ano po kaya ang problema? kailangan na po bang mag pa calibrate? Hindi pa kasi po ito nakakalibrate ever since.
The past few months po eh nagka problema ako sa radiator though hindi naman ako inabutan na nag overheat lagi nga lang muntikang mag overheat.
everytime na nakikita ko na mataas na ang temperature ko eh inihihinto ko then lagay ng tubig sa radiator.

Is it part of the problem I am encountering?

Can you PM me po yung cost if ever magpapagawa po ako.

Salamat po.

**miked** · August 7th, 2013 01:11 AM

magandang umaga diesel dude!

mayroong isang sensor na suspetsa ko eh para sa tachometer sa injection pump ng pickup ko. 4d56turbo. kagaya nung nasa larawan
http://cdalejef.smugmug.com/Trucks/M...t1748115-L.jpg

ngayon po eh anong klase ng diesel tachometer ang dapat ikabit dito kung ito nga yung sensor? mayroon kasing tachometer na sa alternator ikinakabit eh.

specific model ng tachometer at brand na rin kung ito man ay inyong nagawa na. salamat

**Dieseldude** · August 7th, 2013 03:49 AM

Sir Dieseldude question po.
My ride is a Isuzu Crosswind XUV.
Napansin ko po na parang humihina na ang hatak nya and medyo lumalakas ang consumption ng diesel.
From 12Km/li eh naging 10Km/li nalang sha. tapos may time na nagpunta ako ng nasugbu batangas and parang hirap na sha akyatan.
Ano po kaya ang problema? kailangan na po bang mag pa calibrate? Hindi pa kasi po ito nakakalibrate ever since.
10kms/liter is normal. Sa palagay ko, hindi pa kelangan ang calibration. Check/replace air and fuel filters, and check or adjust accelerator cable. Injection pump throttle lever should touch maximum speed screw on injection pump when accelerator pedal is floored.

The past few months po eh nagka problema ako sa radiator though hindi naman ako inabutan na nag overheat lagi nga lang muntikang mag overheat.
everytime na nakikita ko na mataas na ang temperature ko eh inihihinto ko then lagay ng tubig sa radiator.
Is it part of the problem I am encountering?
I don't think so. Just remember that one serious overheat will can your engine. Your cooling system needs to be checked

Can you PM me po yung cost if ever magpapagawa po ako.

Salamat po.
You're welcome.

**Dieseldude** · August 7th, 2013 04:11 AM

magandang umaga diesel dude!

mayroong isang sensor na suspetsa ko eh para sa tachometer sa injection pump ng pickup ko. 4d56turbo. kagaya nung nasa larawan
http://cdalejef.smugmug.com/Trucks/M...t1748115-L.jpg
Tama ka, yan ang pump speed sensor. Pump turns at 1/2 engine speed.

ngayon po eh anong klase ng diesel tachometer ang dapat ikabit dito kung ito nga yung sensor?
Hindi ko alam ang specific brand ng tach. Pero sigurado ako na kelangan mo ng tach na pwede ma-set to read number of pulses per 1 engine rpm. You also have to know the number of gear teeth inside the injection pump. The pump speed sensor detects a pulse for each tooth passing it.

mayroon kasing tachometer na sa alternator ikinakabit eh.
Mas madali gamitin ito dahil wala ka nang kelangan adjustments.

specific model ng tachometer at brand na rin kung ito man ay inyong nagawa na.
Sorry, hindi namin ginagawa ito.

salamat
You're welcome.

**dh0n** · August 9th, 2013 02:20 PM

good day sir totoo po bang masisira ang engine and turbo pag may egr ka? kaya po ba bina blank ang egr para maiwasan po ito? confuse lang ako sira may nabasa kasi ako na masisira ang engine at turbo pag may egr ang sasakyan...and also tama ba na i adjust advance or delayed ang injection pump para maalis ang usok? di po ako bihasa sa sasakyan pero sa palagay ko mali ang ganitong paniniwala...please enlighten me naman sir...

**Dieseldude** · August 10th, 2013 09:40 AM

good day sir, totoo po bang masisira ang engine and turbo pag may egr ka? kaya po ba bina blank ang egr para maiwasan po ito? confuse lang ako sir, may nabasa kasi ako na masisira ang engine at turbo pag may egr ang sasakyan...
Hindi totoo yan. Wala pa akong nakitang engine na sinira ng egr. Ang tataas ng warranty ng mga casa sa brand new car sales; halos lahat nito ay meroon egr.

and also tama ba na i adjust advance or delayed ang injection pump para maalis ang usok? di po ako bihasa sa sasakyan pero sa palagay ko mali ang ganitong paniniwala...please enlighten me naman sir...
Dapat ilagay lang sa tamang timing ang engine. Kung minsan, nababawasan ang usok pag binago ang timing dahil dati na itong wala sa timing.