2005 Isuzu trooper 4jx1 namamatay and wont start!

[s_quilicot]

hi tsikoteers ..

our legendary 4jx1 strikes again!

this time namamatay ang engine .. kahit tapakan ang gas pedal namamatay parin .. dahan dahan bumababa ang revolution kahit diinan ang tapak sa gas and namamatay ..

we tried cleaning the 1 month old genuine fuel filter pero wala namang tubig na nakita ..

nag try pa yung mechanic na ihipan yung fuel lines pero hindi naman barado ..

the lines is clear pero the engine wont start again ..

this happen last monday when dad ko may gamit ng trooper and nung nagpasundo na sila bigla nalang daw namatay ang trooper ..

what could be the problem? well maintained ang unit .. mga 70k palang tinakbo and im using Royal Purple 5w-30 and also using genuine fuel and oil filters .. newly replaced lahat last june and sa speedyfix ako nagpapagawa ..

the mechanic said na baka daw computer box pero hindi kami convinced ..

hindi kaya loose wiring connection lang ng valve sa fuel lines from the ignition ?

pag pinump manually yung fuel pump nagstastart ang unit pero namamatay din after a few seconds ..

parang walang supply ng diesel going to the engine ..

yung isang mechanic may minention na baka raw "magnetic valve" ang may sira ..

then may isang mechanic naman from isuzu na ang sabi fuel injector daw ..


GOD wag naman sana coz bumigay narin injector namin dati and we waited 6 long months for the parts and magkaiba ang symptoms sa ngayon ..

hindi kaya fuel pump?

or electrical problem lang?

umaandar naman ang unit kapag pinump ang fuel pump manually ..

may connection ba dito ang computer box?

mga fellow tsikoteers i need your help ..

ano kaya prob and whats the remedy?

[4JGtootsie]

The only way you can confirm the trouble is by using a TECH2.
Guesswork can cost you, what you need is a mechatronic (mechanic who works with electronic, scan tools/ laptop with the right software for the vehicle)

[s_quilicot]

The only way you can confirm the trouble is by using a TECH2.
Guesswork can cost you, what you need is a mechatronic (mechanic who works with electronic, scan tools/ laptop with the right software for the vehicle)

sir tootsie saang shop or may kakilala po ba kayo?

[bambino]

tech2 is GM scanner and that's the right tool for this kind of trouble , but the mechanics may still be able to work on it . like the basics

lift pump should read at around 5psi ( fuel pump)
with the aid of engine electronics wiring diagram try checking some vital wires.
aftermarket scanners may be able to read any fault codes stored ( put it in OBDII MODE)

try to ask the mechanic to install a clear fuel hose from the lift pump to the injection pump inlet , would be nice with fuel gauge . hope this will help you

[4JGtootsie]

So far the only shop that has invested in tech2 diagnostics is Isuzu Philippines and its dealers.
We have tried using generic OBD2 on local patrols, Mu and troopers but we havent gotten a working communication with its ECM, though it acknowledges its protocol.
Once we had a special client with a white Mu(4jx1) and we really had to coordinate with our network from our friends from ADS (Association of Diesel Specialist), Japan, Australia and Middle East it wasnt easy but naayos naman namin. You can call Sir Jake (4113711 to 13) if he can provide you the same accomodation.

[aga_cruz]

sir mukhang sa fuel pump nga me sira ??? sayang bagong bao pa naman 2005 na trooper

sir pwede kaya palitan yung fuel pump tapos ang ipalit nyo yung electronic fuel pump???

OT: PAG BA ganyan ang sira no choice kundi hahatakin?