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Isuzu diesel problem misses when driving

K B 30L 4/4 deisel dash light comes on and then it misses when driving is it the throttle position sensor the vehicle pulls well and also stops missing at times

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 68 Answers

SOURCE: Diesel Engine Missing - 1996 Isuzu Bighorn SUV 3.1D

hi kiwi
im dave

have you tried changing the fuel filter?

it could definitely be a defective injector or low fuel output at the injectors.

it could definitely also be a vacuum leak at the throttle body, intake manifold or any of the vacuum hoses

ignition timing may be off

engine emission control system may have a fault

cylinder compression may be low or uneven

ignition system may be weak or faulty including glow plug(s)

camshaft lobes or valve train components may be worn

Posted on Jul 20, 2008

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dsacco86
  • 1077 Answers

SOURCE: Missing, stalling Pontiac Sunfire

The OBD II code for P0400 is Exhaust Gas Recirculation Flow Malfunction.
I'm sure the only thing you have left is you may have to replace the EGR valve or check for any leak from the vaccum lines going to to EGR valve.

Posted on Jun 01, 2009

  • 17 Answers

SOURCE: stuck in 4 wheel drive and wont come out.

hey there i cant tell you what you are missing but i can tell you how to disengage the front wheels . ok you have a vacum line that runs right under the battery and a line that comes up from the front diff. to the same place ( you may have to remove batt and batt tray to get full access to this) un bolt it and temporaly put batt and batt tray back in start it up and decompress this and see if it comes out .... you should here clunking noise if it goes back in ... if thats the case just pull that big vaccum line off .... to test get all four tires off the ground and have some one put it in drive but dont hit the gas it should turn on its own ...if that dont work check the cable that runs down to the differental

Posted on Aug 06, 2009

  • 17 Answers

SOURCE: No Throttle Response - 2006 Hyndai Sonata Diesel Auto

Have dealer check the computer codes - I had same problem and it required that the accelerator module be replaced - this is "drive by wire" system - no direct hookup to the throttle body.

Posted on Feb 10, 2010

  • 1 Answer

SOURCE: 95 f250 7.3 is throttle position sensor on the pedal

i have a f350 ps and it starts and idles but i have no throttle nothing happens when i push the pedal and the check engine light comes on

Posted on Sep 30, 2010

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1 Answer

I need diagram showing an isuzu wizard 1998 deisel 3 litter timing marks or degrees and valve clearance


I will talk about Isuzu Wizard eng.4JX1 turbo 3000/ Diesel, It takes time to Start and after get Started comes a White Smoke from the exhaust and also the is a miss firing. I can also see there is Eng.Oil coming from the throught Body direct to the Turbo but not so much but is visible when the engine is tuning and the car this not have power now. What can be the problem, what must be fixed???

Apr 08, 2017 | Isuzu Cars & Trucks

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My 98 Trooper stopped in traffic, now won't start, it cranks till the battery dies. There is a check light blinking below the 4 wheel drive area on the left of the dash


run the fault codes and check for crank/ cam position sensors
broken timing belt, fuel problems
diesel check for air in the fuel system

Nov 20, 2016 | 1998 Isuzu Trooper

1 Answer

What are problem of my isuzu bighorn, model 1994, during starting the engine, it goes wild and over revolution of the engine,


if it is a diesel engine ---problem with the governor control of the engine--- fix is have the pump pulled and repaired by an accredited diesel specialist shop
if petrol check for faulty accelerator position sensor or throttle control motor or broken cable

Apr 01, 2016 | Isuzu Cars & Trucks

1 Answer

My car is jerking when im driving


this could be caused by a miss fire in the engine,fuel pressure/volume problem,a bad tps(throttle position sensor) sensor or other sensor problem.you may have to see if there is a code in the ecm(computer) that may help with finding the problem.you don`t say if there is a check engine light on.

Aug 10, 2011 | 1998 Isuzu Rodeo

2 Answers

MY 94 rodeo 2.8lt turbo diesel blows lots of smoke when the throttle is down.. When i lift the foot of it stops smoking.. can you help..


if its black smoke and id say it is being a deisel it can be injectors or just simply fuel pump timing. get it to a deisel specialist to check the pump timing and your fuel load under acceleration, only real way to get it sorted.

Jun 28, 2011 | 1994 Isuzu Rodeo

1 Answer

My thermostat light on the dash stays on and wont go off what do I need to do to fix the problem on my 1996 Isuzu bighorn 3.1lt turbo deisel


I suggtes check for some cooling system sensor go to bad; check fluid leves and any coolant leak there.

Keep us updated.

Feb 01, 2011 | 1996 Isuzu Trooper

1 Answer

I have an Isuzu Bighon 1998 3.0 Diesel Dotch Engine which i purchased second hand. It is absolutely great when the engine is hot. It has issues with starting especially after being parked for more than 4...


ISUZU HAS A RECALL ON LEAKY INJECTORS ON THAT TRUCK GIVE THEM A CALL The injectors use the engine oil at very high pressure to inject the fuel, and semi synth oil just can't withstand these high pressures for very long. It breaks down, loses it's viscosity, and then the injectors won't work properly.
Change the oil to fully synth, and you should see a huge difference. (Do both oil filters while you're at it too).
1. Injectors. Usually the electronics in them fail and cause a miss fire.

2. Injector Sleeves. Causing diesel to leak into the sump and in severe cases the oil/diesel mixture filling up to such an extent that the vehicle actually runs on its own, on the mixture. This can cause the engine to rev to the maximum until all the oil/diesel mixture is burned or the engine basically destroys itself.

3. Rail Pressure Sensor. If the E.C.U cant determine what pressure is at the rail the vehicle may not start or stop running . A fairly simple fix with only the rocker cover needing to come off.

4. Rail Pressure Control Valve. This controls the pressure supplied to the rail. Engine will not start if this control valve is faulty.

5. Turbocharger. A very unreliable unit. Seals usually go after 50000miles.

6. Dual Mass Flywheel. Seldom give trouble but I have seen a few that have. If the new flywheel is taken off and not put back in the same way as the old one (lined up via a half moon shaped mark) the engine will not start as the flywheel sensor will be unable to determine the position of the flywheel.

7. Throttle Position Sensor. Fairly troublesome. Usually no deteriation in driveability but will bring on the engine light.

The engine is a gem when running correctly but unfortunately its a rare occurrence. I think the 02 onwards models had a lot of modifications done to them such as improved injectors etc.

Dec 15, 2010 | 1993 Isuzu Trooper

1 Answer

The "engine power is reduced" light comes on


po455 is Probable Cause[s]

1. Defective, loose or missing fuel cap
2. EVAP canister broke, hose cracked or not connected
3. Purge or vent solenoid defective
4 . Vacuum leak at engine po121 code po121 means Throttle Position Sensor/Switch A Circuit Range/Performance Problem . it is usually indicative of a faulty throttle position sensor or faulty wiring harness in the engine bay.

Feb 27, 2010 | 2006 Chevrolet Impala

1 Answer

95 f250 7.3 is throttle position sensor on the pedal


i have a f350 ps and it starts and idles but i have no throttle nothing happens when i push the pedal and the check engine light comes on

Feb 27, 2009 | 1995 Ford F250

2 Answers

Adjusting the auto kickdown on a 1994 Isuzu Mu 3.1 Deisel


there should be a cable that runs off the throttle body

Jan 31, 2009 | 1994 Isuzu Trooper

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