Question about Isuzu Cars & Trucks

1 Answer

My 2000 Isuzu nqr cranks over great but wont start,i'm getting fuel to the filter but not to the injectors

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Isuzu Master
  • 20,706 Answers

Big NQR TRUCK what model NQR 200, 300, what?
. what displacement engine, how many cylinders.?
Diesel right they only had gas in 1995 i think,
so is it direct injection (fuel rail direct?)
there are over 12, model H engines. 4Hxx all 12 are DI direct Inj.
so DI engines, have a ECU that injects. (much like modern gas engines,and huge injector pressure. , compared to port inj.)
so

  1. check fuses first.
  2. scan the PCM yet. ? that is 2nd, and mandatory.
  3. fuel pressure good (tricky on Direct injection read the FSM yet)? Some engines have sensors here to see pressure, scanned
  4. the PCM needs crank signals to inject. and reports them if bad.
  5. the glow plugs work? i check voltage then use my current meter amp clamp tool to be sure all suck spec, current, if not fix that.

post real engine names.
and country

or google, "diagnosing direct injection"



.

Posted on Apr 22, 2015

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Cranks no start, have fire to plugs. I have reading all this stuff on this site and fhave not found a solution. does anybody here know anything that actually works? 2000 Isuzu Rodeo 3.2 auto 4x4, tryi


Take this one step at a time:
(a) Does the vehicle start when you spray Starting Fluid into the Intake Air Hose?
If it does, then you need to figure out WHY it is not getting fuel. Possibilities are Clogged Fuel Filter, Bad Fuel Pump, Bad Crankshaft Sensor, Blown Fuel Pump Fuse or other Fuses too...
(b) Do you have a NOIDS Light to test the Fuel Injectors? This will also help you narrow down the troubleshooting

Feb 12, 2014 | 2000 Isuzu Trooper

1 Answer

What is the fuel pressure from the main pump to the engine.trying to be certain that my fuel have the require pressure for starting


Is the 30 ltr engine diesel? If so what was the reason and changed the Injectors? Did you follow the correct procedure to renew the injectors? This engine has two oil pumps. One is for the engine and the second one is the high pressure for the injection cranking system. On starting the engine and trying to start are you sure you receive the correct oil pressure to cause the injectors to open? If everything is okey,go to crank or cam sensor or even to the accelerator pedal.Also is better to clean the throttle body from any dirt. Use a scanner to give you the fault .Also bear in mind that these vehicles are fitted with the following secret,if you have a blown brake lights fuse or brake lights bulbs will not start,just engine turn and no engine run. It is the immobilizer activation. Do not over 32 times crank start otherwise you will loose ecu.

Sep 16, 2012 | 2000 Isuzu Trooper

2 Answers

1998 Isuzu Amigo is getting no gas to the injectors, fuel is present at the injectors, node lights are indicating no pulses at the injectors, ECU checks out to be good, spray fuel in the intake and it...


Just because there is fuel at the injectors doesn't mean there is any fuel pressure. You need to check your fuel pressure and if is low or non-exisitant then you either have a clogged fuel filter or a bad fuel pump.

Nov 17, 2009 | 1998 Isuzu Amigo

1 Answer

Isuzu trooper starts briefly then dies


check your fuel delivery from the pump to the "dry" pulsing injectors leave the crank sensor alone! open the intake and, spray either (engine start) into the engine then attempt to start; it should start and, run until the either is used up then die. most likely your fuel filters are clogged

Aug 02, 2009 | 1992 Isuzu Trooper

2 Answers

2000 Chevy express van no fuel to engine - pump is good


Have you checked the fuel filter? Have you changed it EVER?

Apr 20, 2009 | 2000 Chevrolet Express Cargo

1 Answer

2000 Chevy Blazer Cranks but wont start...


What about the fuel filter????? Have you changed it out??? If you can spary something like a started fluid, that means it is a fuel problem. My last check, it has to be above 50-psi on the fuel pressure to make it run right. I had 35psi, but whould not get over 30mph or down hill maybe 45mph. Check both filter & pressure, but check pressure with a New fule filter!!!!

Jan 18, 2009 | 2000 Chevrolet Blazer

1 Answer

1999 F 250 crank but wont start


look on injector pump make sure there are no loose wires

Dec 09, 2008 | 2000 Ford F250 Super Duty Crew Cabs

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

148 people viewed this question

Ask a Question

Usually answered in minutes!

Top Isuzu Experts

yadayada
yadayada

Level 3 Expert

75744 Answers

Steve Hurc
Steve Hurc

Level 3 Expert

450 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Are you an Isuzu Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...