Carbon build - up its everyone’s problem.

[Rienoh]

Ok, I went back a few threads. So the SCV and manifold are warranty issues or not?

I would like to be a little armed before ringing the dealer

[hvac guy]

Have a look in here viewtopic.php?f=39&t=2445&p=244951&hilit=hotfix#p211798

[Rienoh]

Have a look in here viewtopic.php?f=39&t=2445&p=244951&hilit=hotfix#p211798

Thanks for that, very helpful. Ill just give them a call tomorrow and see what they say.

[DoubleD]

Hi Guys

Tritons still surging and still has very poor fuel economy.
The last time I was in at Mits they said theyed order the parts
to do the Manifold.

Today the engine light came on so I called in to see them
also to see if the SRS wiring harness had come in.

Now the Manifold isn't getting done, as they need to plug it in
to see why the Eng light is on before ordering in the parts to do
the manifold. (Supposed to be ordered after last time in there!!)
The service guy said its got the new manifold on it
so it shouldn't clog up..........

Im over getting therun around!!

[Cowboy Dave]

The new manifold is no less prone to clogging up, the only difference as I understand it is a moved sensor location - so that clogging up won't produce a fault as soon as it otherwise would.

[DoubleD]

Yeah CD that's how I understood it, when you say they produce a fault, is that
a warning light in the dash?

What would cause my engine light to come on?

[Cowboy Dave]

Yeah by fault I mean a fault code causing a check engine light. I can't even remember which sensor it is at the moment I'm afraid mate but it is the change in conditions for that sensor brought about by the build up of carbon. Someone else will be able to explain it better than that.

[bevel19]

Hi Rienoh. Just took my 'new design anti-clog up manifolds' off and I'm surprised the engine went at all. Butterflys wouldn't move and the chamber itself was clogged down to about one fifth of its capacity. 61,000kms 3.2 TD 2009 GLX/R.
Surged at the same revs you stated and drove like a pig when cold.Felt down on grunt when warmed up too. I often have a caravan on the back and wouldn't have enjoyed the experience much until I cleaned it up. Turned it back into a close impersonation of a rocketship now.
Easy enough job to do ,but time consuming. I'll do it everytime the valves need adjusting.........catch can on the way too.

[DoubleD]

Thanks mate,

Does anybody have any photos of their MN manifold clogging up.
Again I've been too that my model generally doesn't have
a problem with the manifold clogging up. Apparently Mitsubishi do
not clean out the MN Manifolds they just replace them???

Anyway they are putting it on the computer tomorrow to see
why the ENG light is on and to see what's causing
the high fuel consumption & surging.

[biggibbo]

Mate, I don't have photos, however my upper and lower were cleaned as mine already had the revised manifold.

[DoubleD]

Thanks Gibbo, where did u get that dine at?

I've told them it has poor fuel economy, surging, loss of power.....

They've already cleaned the Maf Map sensors but want to
check the scv today when they're replacing the SRS wiring
harness.

I'm not sure what else I have to do to get them to clean out the manifold.

[biggibbo]

Pennant Hills Mitsubishi

[DoubleD]

Thanks Gibbo

I've just had the call & I have a new EGR Valve (which was what
caused the engine light) & a new manifold.

Will see how it goes now!

[spoiltone]

hi, i to have high fuel consumption and surging, took it stealer and they re flashed ecu, something about low boost? and it seems to have fixed the surging issue.

can anyone confirm the mn's need manifold cleaned? as im trying to get them to do mine. average highway fuel is 13/100 and i had a car trailer on the other day with 800kg load i got 20ltr/100km.

not very happy now i need to record my fuel usage to my km's wtf. im telling you what it is. i have a 125ltr tank and im very lucky to get 800km out off it.
when i first got mn it was great.

i too am waiting on new floor and roof harness for my srs light.

[biggibbo]

hi, i to have high fuel consumption and surging, took it stealer and they re flashed ecu, something about low boost? and it seems to have fixed the surging issue.

can anyone confirm the mn's need manifold cleaned? as im trying to get them to do mine. average highway fuel is 13/100 and i had a car trailer on the other day with 800kg load i got 20ltr/100km.

not very happy now i need to record my fuel usage to my km's wtf. im telling you what it is. i have a 125ltr tank and im very lucky to get 800km out off it.
when i first got mn it was great.

i too am waiting on new floor and roof harness for my srs light.

Mine had the manifolds cleaned at 100,000Km and were chockers (they were also the new design, hence cleaning instead of replacing). I pretty much ran a blank from day 1, however removed it at 75,000 for a service and then had ongoing mechanical problems (turbo, gearboxes etc) so it didn't end up going back in till the ute got sorted. 25,000 km of highway driving later, managed to clog my manifolds to the point of noticable power loss. Have ran the blank since cleaning and the manifolds are spotless for carbon build up - they are a little greasy from oil mist so my new mechanic tells me.

Take your Throttle body off and take a look inside - was very noticable on mine.

I have a 125lt tank on mine and get around 1000km before the light comes on, at which point there is still about 20 litres left.

[Thommo3337]

Could people confirm at what km they are getting their MNs cleans at? Mine has done 45000km now and I think there may be a loss of power howeve fuel isn't to bad.

[Cowboy Dave]

Mine are pretty filthy at 60,000kms.

[mattz]

Could people confirm at what km they are getting their MNs cleans at? Mine has done 45000km now and I think there may be a loss of power howeve fuel isn't to bad.

It all depends on the type of driving you do.
Some people have had them done as low as 15,000km and I know of someone else who had them done well over the 100,000km mark.
There is really no rule of thumb.

[Rienoh]

Bevel19, thanks for that. Im just scared the dealer is going to somehow shaft me

Is there a quick way to check myself to see if it has a buildup?

Surging is getting worse but definitely gets better/goes away when warm

I only serviced it 2000km ago so im not too concerned about it being a filter (plus engine temp wouldn't effect a blocked filter)

[Cowboy Dave]

On the MN you can remove the throttle body pretty easily and from there you can see enough to get an idea.

[Rienoh]

I should have noted mine is the 3.2 ML, any quick inspection on these?

[Cowboy Dave]

Probably pretty similar to the MN. Can't hurt to try as its only about 4 bolts from memory.

[Rienoh]

Ok guys, I pulled my boost hose and then took the throttle body off. There is build up but not heaps

Is the main build up people are seeing further down?

Sorry about the pictures it was on my phone with a torch

[viking shippy]

Ok guys, I pulled my boost hose and then took the throttle body off. There is build up but not heaps

Is the main build up people are seeing further down?

Sorry about the pictures it was on my phone with a torch

This is we're the air from the turbo enters and the pcv crankcase oil...
All motors look like this here
you need to look further downstream were the egr valve pumps in the exhaust carbon and oil combination..into the manifolds

[Rienoh]

Thanks Viking Shippy,

Does it enter into the lower half of the manifold? In my photos I am looking towards the firewall up the manifold and it then drops and does a 180 back underneath itself.

Thanks