[Diesel-Tec]

White smoke is a sign of not enough heat to complete the combustion process, ie low compression, glow plugs not working when cold. If an injector had 3 of the six holes blocked it may miss or run roughly but you won't see white smoke. It sounds like you have an engine compression issue.

How long have the fault codes been in the vehicle, they may be old ones that are not relevant.

Andy

 

[Fogazi]

The battery had been disconnected for a month prior to starting it yesterday. So the codes are new. I might get some injector cleaner today and maybe see if I can get hold of a crank any sensor.

 

[scrawni]

Well out of curiosity I went and started her up. Starts fine and still idles easily but rough(vibrations not stalling) I revved it up to 3500 and there is no knocking sound at all(i think? - Would a video recording on youtube help you guys?). White smoke is still billowing out and it seems like it is only running on 3 cylinders.

My question is how would a blocked injector cause smoke still? Not a smart arse question but a genuine query. Wouldn't whatever fuel does get past the blockage still combust? No Idea how it works...

Cheers

Pull the injectors and get them tested, I will almost put my left nut on you having a failed injector.

 

[tegs]

The injectors are two staged and we found with my mates one that no one could test them correctly
( straight from the deisel joint he was dealing with ) because they could only check the higher pressure stage not lower pressure
Please correct me if im wrong or if this was just isolated to the deisel guy we delt with.

 

[dirty wheels]

Get a compression test Fogazi. That will tell you whether you have an injector problem or a motor problem.

 

[Diesel-Tec]

Disconnecting the battery doesn't clear fault codes. The boost code generally means its boost spiked. The crank sensor code may be a bad sensor or the relationship with the cam/or pump position sensor is out.

If you were to disconnect the plug from the injector pump at the inlet manifold and crank it over, is the cadence even or does it sound different in one spot.

Any blowby from the breather hose when running or revved up?

The injectors are 2 stage units, generally if tested and the pressure is low, then the 2nd stage will be also These are non serviceable, so if bad they are an ornament.

Andy

 

[Fogazi]

Disconnecting the battery doesn't clear fault codes. The boost code generally means its boost spiked. The crank sensor code may be a bad sensor or the relationship with the cam/or pump position sensor is out.

If you were to disconnect the plug from the injector pump at the inlet manifold and crank it over, is the cadence even or does it sound different in one spot.

Any blowby from the breather hose when running or revved up?

The injectors are 2 stage units, generally if tested and the pressure is low, then the 2nd stage will be also These are non serviceable, so if bad they are an ornament.

Andy

Sorry, you will have to be more specific in what you want me to check.

I have organised to take it to a Diesel Injection workshop here in Darwin and get them to have a quick looksee..

 

[meiamaro]

With the engine running,
disconnect one injector at a time.
If the engine changes note that
should be the dud one.

Cheers Ian

 

[Fogazi]

Disconnect as in the fuel line to the injector?

 

[Dan Ahern]

any updates??

if you listen to anyone maybe it should be diesel-tec here that posted on the thread,maybe he might have a better idea than most of us as he works on them a lot.

anyway,i would be leaning towards what he said if what i said isn't the issue.


keep us posted..

 

[SHANE 3.0]

Any up dates, or can the GRENADED POST be removed, I'm sure the guys who own the later models would appreciate it.

 

[rumcajs]

With the engine running,
disconnect one injector at a time.
If the engine changes note that
should be the dud one.

Cheers Ian

I'd have thought it is other way, if the engine note doesn't change than that is the dud one, you'd also take the fuel away so white smoke should go too if it is failed injector or lack of compression for example.
Cheers

 

[Dan Ahern]

i'd be very intrested to hear what's wrong here,the injector is a possibility if it's blocked or clogged but unlikely associated with the coolant loss,that's the worrying part if you ask me.


good thing it's running though,when i traded my blown 00 model towards the one i had now it drove 80miles with a dropped valve from overheating,was informed later it also had a cracked head,the problem started that time due to just changing the coolant and not having all the air out of the system,it developed a hot spot at the rear of the head either way i still got a decent price for it and the garage man had a replacment head for it.i still wonder and ask myself was it only something silly like a blocked injector....mmm


hope you get good news here,it is a later model so good hope of it been something stupid like an injector.

 

[nullack]

Fogazi if yours is CRD the injectors are precision non serviceable units that are keyed to the ecu with factpry tolerance ratings. If you swap on a crd you need to tell the ecu the new tolerances otherwise the tune will be out

 

[Fogazi]

Non CRD.

Took into a Diesel Injection service joint here and he couldn't say yes or no towards the injectors/pump.

He did however remove the oil filler cap whilst running and air/oil was pumping out of there and he said it was a holed piston for it to do that.

Still booked into Nissan on Thursday to see if it will be done under warranty. No high hopes here...

 

[geeyoutoo]

OK Mate, what year is it? Forget it I just found where you gave the year. Very interested in what Nissan have too say on Thursday. An 06 should be well and truly out of the classic Grenade era.

 

[SHANE 3.0]

I'm pretty sure that most patrols blow the oil out with cap off. I still doubt its a holed piston.

 

[Fogazi]

I'm pretty sure that most patrols blow the oil out with cap off. I still doubt its a holed piston.

Not that I'm a mechanic but it is not a constant blow. It blows out then stops then out again at the same rate that a piston would be cycling.

 

[Diesel-Tec]

Take off the breather hose and check it that way. It seams to be a lot of guessing and assuming rather than any facts being concluded. Get it to someone who knows what they are doing and then go from there.

Andy

 

[kiwipatrol]

im 3/4 of the way thru a rebuild on mine. Similar symptoms, but had melted a small hole thru no. 3 piston into the oil ring groove, Everything else good, even the bore (amazingly!) I did shut it down immediately, and not attempt to restart it. Looking like i will get away with a $2500 rebuild, with alot of favours called upon!
I too will be interested in the out come of this one