Turbo blown?

[Daviduk1]

Yesterday towing my boat home my Pathfinder
suddenly lost power with much black smoke.

I limped it a couple of miles to a safer location.

The engine initially restarted but won't now.

I was recovered to near my house but would like to move it a bit to get out of someone's way. What can I do to make sure no further damage occurs? My thought is to disconnect the duct to the inlet manifold, check for debris and see if it starts.

 

[solarman216]

You are right, remove the pipe between turbo and inlet manifold, put a stocking or sock over the manifold to stop debris getting in, if the engine is undamaged then it should start and run and no possibility of turbo debris getting into the engine, if the turbo has blown then running it will not matter, damage is already done, Rick

 

[Daviduk1]

Hi Rick, Thanks for the reply. Sorry for the delay in getting back. Had to get the boat back up the drive (Tractor) and the Pathfinder onto my drive (Friend with 4x4)

I am trying to work out the best way of further investigating this problem. I don't want to spend masses of money only to find that some other part of the system is damaged and the car is beyond economical repair.

I did disconnect the duct to the inlet manual and managed to start the car briefly but no power what soever and throttle having minimal effect. I think if I depressed it slowly the revs increased slightly. It is very hit and missed whether it starts. No untoward noises just runs very roughly with a lot of grey smoke. There were no untoward noises or lights when I broke down just smoke. It towed my boat about 2 miles to an exit (Hard Shoulder @ 40MPH).

I have borrowed a basic code reader and am going to stick that on but there are no error lights showing on the dash other than traction control which is probably to be expected giving the car has been pushed and shoved around. I suspect I will either get loads of error messages or none.

Have you ever inspected the turbo on a Pathfinder without taking one off? I am concerned about damaging the gaskets and not being able to get hold of them easily.

The AA will come out, run diagnostics as they did no diagnostics at the road side. They will tow me to a local garage but I have no idea where I want to be towed.

 

[solarman216]

Well first off forget the turbo for now, it should start and rev well without it, I think you problem is more pump related, has the fuel filter been changed on a regular basis, at least once a year? but diagnostics will be needed to sort this out I think, bear in mind a pump will be in the region of 1k, Rick

 

[Daviduk1]

I tried to post a link to some images on Dropbox but was unsuccessful

Apparently there might be a fuse for the fuel pump. On a picture of shows one on a fusebox for a 2009. I have located 4 boxes 3 in the engine bay and one in glove compartment. Are there any others? I assume I can't test fuels pressure myself. There are no warning lights or error codes.

 

[Daviduk1]

AA came as promised to diagnose.

Computer said good rail pressure and good engine RPM although it would not start.

They blanked of the EGR valve with a plate and it started and appears to be OK. Smoking a bit which might be unburnt fuel and absence of EGR. Not taken it for a run yet. But it pulled up the drive seemingly as normal.

 

[solarman216]

AA came as promised to diagnose.

Computer said good rail pressure and good engine RPM although it would not start.

They blanked of the EGR valve with a plate and it started and appears to be OK. Smoking a bit which might be unburnt fuel and absence of EGR. Not taken it for a run yet. But it pulled up the drive seemingly as normal.

Sounds like the EGR is jammed open, caution with blanking it, if it is anything like the 3Lt as can cause more serious issues, I know little about your engine model, Rick