2006 Nissan 4.2L Turbo Intercooled (Running on problems)

Submitted: Monday, Apr 20, 2009 at 18:43
ThreadID: 68048 Views:2863 Replies:11 FollowUps:1
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Hi, Have got a 06 patrol 4.2td intercooled with just over 70,000ks on the clock. Have had a problem with it running on since new, it runs on 7/10 times when turned off. Nissan claim they cant find why it is doing it, and it won't do it when it is in their workshop (so they claim). It has already had a new turbo at around 50,000 ks, also 6 new injectors (they claimed to have fitted them but would not supply proof of fitting them or show us the old ones), it also still rains oil from the turbo also a problem that they seem to be unable to fix. If any one is able to help with these problems it would be greatly appreciated.
Thankyou
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Reply By: Ozboc - Monday, Apr 20, 2009 at 18:46

Monday, Apr 20, 2009 at 18:46
Cant help with your prob - BUt i have the 2000 4.2 TDI and almost 300 K and NONE of the issues you describe - i was thinking of updating .... your post has made me rethink ......

Boc
AnswerID: 360570

Follow Up By: mattthew - Monday, Apr 20, 2009 at 18:55

Monday, Apr 20, 2009 at 18:55
Hi Boc,
This is only a few of the problems that we have had with it.
It has also had new rear control arms, new rear panhard rod, new EGR pipe (which was a recall) it was almost completely broken off, it was equivallent to driving without a turbo. It has also had alot of electrical probs, the power of the engine is probably equivallent to a 2.4L Hilux. When it was brand new you had to put it in low range sometimes to drive up steep hills as it would just blow clouds off black smoke and not drive up hills. The list just keeps going on.
0
FollowupID: 628362

Reply By: Member - DAZA (QLD) - Monday, Apr 20, 2009 at 18:56

Monday, Apr 20, 2009 at 18:56
G/Day Matyhew

I had a Toyota some time back that had a similar problem, re running on, they found the problem in the Fuel Injector Pump, apparently there was a small valve or something that wasn't seating properly every now and again it would run on, and I would have to stall the truck in gear to stop the motor, I had the pump repaired and that fixed the problem.

Cheers
Daza
AnswerID: 360574

Reply By: donks1 - Monday, Apr 20, 2009 at 19:07

Monday, Apr 20, 2009 at 19:07
Hi Matthew.

I don't know where you are but suggest you find a new dealer/stealer
It is a very common problem with a hotline fix available
If you are in a city dealer they have probably never seen a 4.2

Donks1
AnswerID: 360575

Reply By: Louie the fly (SA) - Monday, Apr 20, 2009 at 19:09

Monday, Apr 20, 2009 at 19:09
Matthew, if it were my new car I would be really ticked off. Personally, I'd be taking it to a diesel specialist and getting them to report on it. Hopefully they find the faults. Then I'd take it back to the dealer I bought it from and present them with a copy of the report. I'd be taking the service manager and a techo for a long drive and turning the thing off as many times as I need to until it happens. Basically, I'd hold them to ransom and make a pest of myself. Nothing to lose.

Maybe a call to Nissan might be the GO. Followed up by a call to your local consumer affairs department. Not a good advertisement for Nissan IMO.

Good luck with getting it fixed - it'd be interesting to hear what the cause is. I'd really try a diesel specialist in your area, one that comes with good recommendations.

Cheers

Louie
AnswerID: 360576

Reply By: Trevor R (QLD) - Monday, Apr 20, 2009 at 19:40

Monday, Apr 20, 2009 at 19:40
The running on sounds like it may be pump related...timing or as someone else suggested a seal not properly seating. Either way any diesel specialist should point you in the right direction. One of mine tends to do this when it is turned off not long after a cold start, but nothing to worry about in my instance as it does not do it when at running temps.
Get a turbo fitter to look at the turbo and give you his opinion about the amount of oil around your turbo and where it is coming from. Do you use oil between services?

Good luck with it and perservere with it, once bugs ironed out it should be sweet.
Trevor.
AnswerID: 360583

Reply By: furph - Monday, Apr 20, 2009 at 20:05

Monday, Apr 20, 2009 at 20:05
Shut off solenoid with gunk under the seat..
Happens in earthmoving gear quite often, they sometimes run for minutes until the fuel is starved enough.
Take it back and simply say "fix it".
Nothing to do with turbo or injectors.
If the engine is rotating, the pump has fuel, it will feed the injectors. If the injectors inject, the engine will run. Simple.. no fuel, no run, instant stop.
They can fix it if they really want to.
furph
AnswerID: 360589

Reply By: Roughasguts - Monday, Apr 20, 2009 at 20:33

Monday, Apr 20, 2009 at 20:33
Do you shut the engine off straight away or do you let it idle for 20 30 seconds to get some of the heat out from the combustion chamber.

Thas theory works with My petrol Turbo, but I have never owned a Diesel, so may be way of the mark.

BeingTurbo you should probably let it idle for a lot longer though but I'm sure you already do that.

Cheers.
AnswerID: 360600

Reply By: lizard - Monday, Apr 20, 2009 at 22:18

Monday, Apr 20, 2009 at 22:18
Still in warranty , get Nissan to Dyno it - then fix it to specs.
AnswerID: 360623

Reply By: Malleerv - Monday, Apr 20, 2009 at 23:36

Monday, Apr 20, 2009 at 23:36
Depending on you turbo oil leak it may be that which is causing the run on(oil in the intake being sucked into cylinder and firing).

Also on the rear of the injector pump is a fuel cut off solenoid. If the plunger is not seating correctly at switch off it may allow a small amount of fuel thru. Maybe ask Nissan to replace this item.

Matt
AnswerID: 360634

Reply By: ddr - Tuesday, Apr 21, 2009 at 08:32

Tuesday, Apr 21, 2009 at 08:32
I had the problem with running on & Nissan did find the error from the ECU, it was the Throttle Position Sensor (I was also having the engine light come on rarely) Hasent done it since replaced.

Also if your turbo is spitting out that much oil it may run on from that.

Id try finding another dealer.
AnswerID: 360656

Reply By: Member - joc45 (WA) - Wednesday, Apr 22, 2009 at 22:21

Wednesday, Apr 22, 2009 at 22:21
Hi Matthew
I've got a Series I 4.2, and at about 100,000km the turbo started leaking oil, and it was replaced under the extended warranty, no quibbles. About 2 months later, the new turbo started leaking oil, and that was also changed with no quibbles.
The run-on trouble sounds like a leaking seat in the fuel solenoid valve (this is the only thing that shuts off the diesel in a mechanical pump). Mine does it from time to time, Nissan looked at it when it was under warranty, but couldn't seem to fix it, and I gave up in the end, as it wasn't a big deal to me. And I guess that's what they were hoping I'd do. Trouble is, if you get a dealer that's mainly into changing oil in Pulsars, you're gonna run into trouble if their apprentice has to diagnose a dicky diesel.
I'd be taking out the extended warranty if you haven't already done so, and also looking for another dealer. Bad service certainly leaves a bad taste in one's mouth - the 4.2 GU is basically a very sound vehicle and it's a pity when the dealer can't properly support the product.
Good luck,
Gerry
AnswerID: 360978

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