Thread: Turbo Leak in 3.0 litre

I know at 2500rpm is when the turbos switch over because if you have the window down you can hear it go hiss like a blow off sound i guess. So it could be something to do with the switching mechanism that swaps them over, i could be totally wrong. Just a thought.

It started on Wednesday with the first error which I cleared with Faultmate and it ran perfectly until Sunday afternoon when it came up with the next error, which will clear but returns as soon as you push it a bit. The hissing has only been noticeable since Sunday.


The error is P3201, unknown fault, so that is no use to me! however, clearing it fixes the problem.

On the 2.7 TDV6 and the 3.6 TDV8 the top hose leaving the I/C tends to split underneath, possibly due to aging from prolonged exposure to radiator heat.

My 3.0 had a sticky secondary isolation valve that triggered restricted performance but never any hissing although if the valve only partially opens it might cause the noise. The valve stickiness was from grit wedged between the actuating lever and the valve body, initially cleaned by removing the valve but I now know to simply squirt some cleaner into the area.

Graeme, I read all your posts about the sticky isolation valve etc last night and with the extensive off road and rough road history of my car I wouldn't rule that out yet. I just haven't managed to find it yet, although it doesn't look too hard.


Mine is the 100 kph type of restricted performance so does that give you any hint?


To make matters worse, this morning the tailgate won't open either! Is there a trick to getting in that I can use? Failing all else I will have to read the manual although I am taking it to Rovertech shortly to get it fixed.

Is there a special type of tape to use for a temporary hose repair when remote (assuming you can find a split)?

Scott

Rescue tape or another name that I cannot currently recall but that sounds like its used for the same purpose. I purchased a roll from Supercheap for around $10 recently.

Originally Posted by BobD

Mine is the 100 kph type of restricted performance

If you mean that you can get to 100 kph if given a long enough and preferably down-hill road than that's about what mine could do, but struggled to get to 60 with a half-tonne load in the box trailer. But that doesn't implicate the isolation valve, only that the ecm is drastically limiting fuel for some reason.

Mine's sticky valve triggered multiple airflow/inlet pressure plausibility faults but I would expect a split I/C hose to produce similar faults.

Edit: The valve is located behind the bottom right of the radiator behind the plastic cover between the chassis rail and inner guard.

Thanks Graeme. It gets to 100 slowly on a flat road and it can hold 100 OK when there at the time the error occurs.


I only get one fault, 3801, unknown fault, when I get the problem. I also have 3801 in a lot of other modules, which I cleared. Not sure why 3801 is so common!


I cleared the fault and drove to Rovertech a short time ago. It appeared again within 2 km of home when I forgot about it and used slightly more power.