4JA1 Engine, Are there any problems?

[aioshin]

Guys,

Can someone help to pin point where is the fuel pump of 4Ja1. I got something on the service manual but sort of confusing since its only a black and white drawing. I need to check on it but can having a hard time to locate.

THanks.

[Camilo canela]

Mga sir bka my manual poh kau ng fuego 96, bka pwd pasend s email kelangan q lng poh, canelacamilo*yahoo.com,,,, ty poh plz...

[polibok]

hello Tsikot forumers.. here's hoping you can help me figure out this problem with my '95 TFR Pickup (4JA1)

Dec. 27, 2016: 3+ year-old battery (Motolite Gold) went completely dead even with recharging, so i replaced it with a new one (same model).. pag change ko grabe ambilis mag start kahit malamig kahit sanay ako sa one-click start ng TFR ko, mas bumilis pa lalo yung starting

After 2-3 weeks i noticed the cranking went really slow to the point na feeling mo parang discharged yung battery.. this was worse in the morning with a cold engine, gapang talaga parang 4-5 na slow crank before umandar.. one-click start lang po ang TFR ko for so many years kaya unusual talaga.. pano naman ma di-discharge eh brandnew yung battery, i asked my self.. i then suspected a parasitic drain so i had a mechanic check it, sabi nya maluwag daw yung negative terminal ng battery, so hinigpitan nya and i went okay nag one-click start ulit pero succeeding days it was the same story, back to slow-cranking in the morning or when matagal yung interval ng pag start ulit ng engine..

so yung theory ko ngayon is yung maluwag na connection partly drained the brandnew battery kasi nga maluwag siya so hindi na re-recieve ng mabuti yung karga ng alternator.. napa check ko na pala ang alternator, and it's in perfect shape 14+ volts yung karga nya at idle with aircon stereo lights etc.. tama po ba ang theory ko?

so plan ko ngayon is to have my brandnew battery fully-charged tapos tingnan ko anong resulta.. if gapang pa din yung cranking with a fully-charged battery, tight battery clamps, and a well-working alternator eh ibang problema na talaga baka glowplug or something else.. sana po may makatulong sa pag advice.. thank you!

[miked]

hello Tsikot forumers.. here's hoping you can help me figure out this problem with my '95 TFR Pickup (4JA1)

Dec. 27, 2016: 3+ year-old battery (Motolite Gold) went completely dead even with recharging, so i replaced it with a new one (same model).. pag change ko grabe ambilis mag start kahit malamig kahit sanay ako sa one-click start ng TFR ko, mas bumilis pa lalo yung starting

After 2-3 weeks i noticed the cranking went really slow to the point na feeling mo parang discharged yung battery.. this was worse in the morning with a cold engine, gapang talaga parang 4-5 na slow crank before umandar.. one-click start lang po ang TFR ko for so many years kaya unusual talaga.. pano naman ma di-discharge eh brandnew yung battery, i asked my self.. i then suspected a parasitic drain so i had a mechanic check it, sabi nya maluwag daw yung negative terminal ng battery, so hinigpitan nya and i went okay nag one-click start ulit pero succeeding days it was the same story, back to slow-cranking in the morning or when matagal yung interval ng pag start ulit ng engine..

so yung theory ko ngayon is yung maluwag na connection partly drained the brandnew battery kasi nga maluwag siya so hindi na re-recieve ng mabuti yung karga ng alternator.. napa check ko na pala ang alternator, and it's in perfect shape 14+ volts yung karga nya at idle with aircon stereo lights etc.. tama po ba ang theory ko?

so plan ko ngayon is to have my brandnew battery fully-charged tapos tingnan ko anong resulta.. if gapang pa din yung cranking with a fully-charged battery, tight battery clamps, and a well-working alternator eh ibang problema na talaga baka glowplug or something else.. sana po may makatulong sa pag advice.. thank you!

maruming starter o malapit na madedbol ang brushes.

[polibok]

maruming starter o malapit na madedbol ang brushes.

thanks po sir miked for your opinion.. i will keep that theory in mind in solving this problem

i will be getting the fully-charged battery today.. obserbahan ko muna for a few days, then starter na ipapa check ko

[polibok]

update: still cranking slow in the morning and the battery voltage drops in the morning despite a fully-charged battery two days ago..

but once the day progresses and the engine is a bit warm from use, the starting quickens up a bit, sometimes even one-click and it fires up.. really puzzling to be honest.. the guy at the battery shop told me i could have possibly bought an "old stock battery" which is really sad if true

will now have the starter checked.. hahay

[shelu]

baka grounded lang po yan sasakyan nyo. pa check sa electrician ang linya. maari ding ang battery ang problema kahit bago, may warranty ang motolite, pakita mo lang ang warranty card.

[polibok]

baka grounded lang po yan sasakyan nyo. pa check sa electrician ang linya. maari ding ang battery ang problema kahit bago, may warranty ang motolite, pakita mo lang ang warranty card.

went to the mechanic yesterday po, had the glowplugs checked, no problem daw sa glowplugs.. tapos checked and tested the starter, mechanic noted na medyo mabagal yung ikot ng starter.. he suggested na linisin yung starter assembly baka marumi na.. after this, if andun pa din yung problema ipapa trace ko na yung electrical system

[shelu]

pag magpalinis ka ng starter sir, sama mo na rin palinis ang alternator para isang bagsakan nalang. join ka sa Team Isuzu Pilipinas. hanapin mo sa fb. marami kang matutunan doon. wag kang maniwala na makupad ang crosswind, maraming paraan para bumilis yan.

[airolynx]

update: still cranking slow in the morning and the battery voltage drops in the morning despite a fully-charged battery two days ago..

but once the day progresses and the engine is a bit warm from use, the starting quickens up a bit, sometimes even one-click and it fires up.. really puzzling to be honest.. the guy at the battery shop told me i could have possibly bought an "old stock battery" which is really sad if true

will now have the starter checked.. hahay

I'd put my money on a failing battery. Yung symptoms na dinedescribe nyo indicates a weak battery. Pag mahina na battery kahit ipa charge nyo it will not hold the charge for long. Kung starter yung issue ninyo, kahit mainit na yan at tumakbo, pag start nyo mahihirapan pa rin. Have your battery tested and replaced if necessary sir.

[polibok]

I'd put my money on a failing battery. Yung symptoms na dinedescribe nyo indicates a weak battery. Pag mahina na battery kahit ipa charge nyo it will not hold the charge for long. Kung starter yung issue ninyo, kahit mainit na yan at tumakbo, pag start nyo mahihirapan pa rin. Have your battery tested and replaced if necessary sir.

pinalinis ko na ang starter sir and it runs like new again.. yun lang pala ang problem.. ruled out ang battery issues kasi brandnew siya tapos no drain at maganda karga ng alternator.. salamat po sa inputs

baka grounded lang po yan sasakyan nyo. pa check sa electrician ang linya. maari ding ang battery ang problema kahit bago, may warranty ang motolite, pakita mo lang ang warranty card.

starter lang pala sir, after ng cleaning eh parang bago yung starting nya.. thanks sir sa input nyo

[Edric_24]

pag magpalinis ka ng starter sir, sama mo na rin palinis ang alternator para isang bagsakan nalang. join ka sa Team Isuzu Pilipinas. hanapin mo sa fb. marami kang matutunan doon. wag kang maniwala na makupad ang crosswind, maraming paraan para bumilis yan.

Paano nga po ba pabilisin si crosswind (xto 2001)? And minsan pala pag nasa 3rd and 4th gear ako at medyo mababa c rpm eh may mahinang kadyot sya..bagong linis naman yung injection pump,pati tank..bago din ung fuel filter..bagong linis din sedimentor..

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[Edric_24]

Problem solved..nagtono lang ng injector..lakas na ngaun hatak..wala na din kadyot.. tinaasan din nya yung menor at yung idle speed pag aircon on..di ko nagustuhan kasi feeling ko malakas sa diesel pag ganon. nagbasa ako na manual sobra sobra sa recommended na rpm speed.kaya binalik ko sa tamang timpla ung idle..ok na sya ngayon.

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[maxpedition]

Problem solved..nagtono lang ng injector..lakas na ngaun hatak..wala na din kadyot.. tinaasan din nya yung menor at yung idle speed pag aircon on..di ko nagustuhan kasi feeling ko malakas sa diesel pag ganon. nagbasa ako na manual sobra sobra sa recommended na rpm speed.kaya binalik ko sa tamang timpla ung idle..ok na sya ngayon.

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Good bro [emoji106] meron ako isuzu pickup almost 17 years na still fuel efficient pa. Wala major problem palit clutch disc lang and no overhauling still in good condition. Alaga lang sa change oil and everything will be fine.

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[GTcervan]

Problem solved..nagtono lang ng injector..lakas na ngaun hatak..wala na din kadyot.. tinaasan din nya yung menor at yung idle speed pag aircon on..di ko nagustuhan kasi feeling ko malakas sa diesel pag ganon. nagbasa ako na manual sobra sobra sa recommended na rpm speed.kaya binalik ko sa tamang timpla ung idle..ok na sya ngayon.

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Pinalinis niyo din yung nozzles niyan? Yun din makakapag-paganda ng hatak ng makina mo. Baka marumi narin kaya nagbabara.

[Edric_24]

Di ginalaw nung tumingin yung nozzles.wala naman daw kasi black smokes na lumalabas.pag nag hard accelerate lang sya nagiging visible na may smoke..

*maxpedition
Yes,matibay talaga mga isuzu..ako din alaga sa change oil,di pa din na overhaul *340k kms as per odo..dun naman kasi buhay ng makina natin..next project ko naman pag nakaipon ay ipacheck ang pang ilalim.

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[maxpedition]

Di ginalaw nung tumingin yung nozzles.wala naman daw kasi black smokes na lumalabas.pag nag hard accelerate lang sya nagiging visible na may smoke..

*maxpedition
Yes,matibay talaga mga isuzu..ako din alaga sa change oil,di pa din na overhaul *340k kms as per odo..dun naman kasi buhay ng makina natin..next project ko naman pag nakaipon ay ipacheck ang pang ilalim.

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Yung isuzu pickup ko kalimitan yung front shock me leaks, nakadalawang palit nako nun. Ngayon me ingay suspect ko yung plastic ng door.

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[GTcervan]

Di ginalaw nung tumingin yung nozzles.wala naman daw kasi black smokes na lumalabas.pag nag hard accelerate lang sya nagiging visible na may smoke..

*maxpedition
Yes,matibay talaga mga isuzu..ako din alaga sa change oil,di pa din na overhaul *340k kms as per odo..dun naman kasi buhay ng makina natin..next project ko naman pag nakaipon ay ipacheck ang pang ilalim.

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Pero chineck yung nozzles at nakitang ok naman?

Pag ayaw mong nakikita na mausok, pwede mo ipa-egr blanking yan. Mura lang kay zix sa pagkakaalam ko.

[Edric_24]

Di naman nya chineck yung nozzles eh. Kasi d nga naman sya mausok sir..saan pala nakikita yung egr na yun sa mga xto models?hinahanap ko nga din yun eh.

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[weisshorn]

Xto 4JAI engine? Wala naman ako nakita na egr valve sa 4JA1. Egr valve sa euro 3 - 4 diesel engine meron.

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