nissan problems

Submitted: Tuesday, May 09, 2006 at 16:43
ThreadID: 33724 Views:2001 Replies:9 FollowUps:12
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Hi everyone
just want to find out about the nissan partrol engine problems in the 3.0l td 2001.Does anyone know of any and if so what are they.Is it only engine or other componets involved.
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Reply By: Motherhen - Tuesday, May 09, 2006 at 16:48

Tuesday, May 09, 2006 at 16:48
This is one of the most often topics discussed on ExplorOz - do a search, and you will get a hundred or so posts with helpful information. The modified (increased oil sump) motor came out in around October 2001, so i don't know which side of that the one you are asking about falls. Even that may not have solved the problem. Over boosting and associated high temperatures seems the most logical theory.

Motherhen (1/2002 3 ltr td owner)
Motherhen

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AnswerID: 171746

Reply By: Member - Nutter (QLD) - Tuesday, May 09, 2006 at 16:48

Tuesday, May 09, 2006 at 16:48
Suggest you do a search on this forum, you'll find plenty.

See ya
Guy
AnswerID: 171747

Reply By: TerraFirma - Tuesday, May 09, 2006 at 17:09

Tuesday, May 09, 2006 at 17:09
Here's a little clip from a motoring journo.. Melted pistons, ouch..! Highway cruising the main culprit.

"IN THE SHOP"
While the Patrol is generally a rough and rugged vehicle with few faults, there is a cloud hanging over the 3.0-litre turbo diesel. The problem generally manifests itself in the form of melted pistons, but the most likely explanation is that it's caused by a piston oiling/cooling problem.

Not all engines are affected. Those most likely to succumb to the problem are those doing a lot of highway cruising.

Nissan has increased the oil fill and played with alignment of the nozzles that spray oil on the pistons for cooling and lubrication purposes, but there seems to be no consistent fix for the problem.

Its important to keep an eye on the oil level in all engines but particularly so in the 3.0-litre turbo diesel.

Apart from the 3.0-litre turbo diesel engine's woes, the Patrol is generally a tough and rugged vehicle that gives good service over the long term.

That said, the manual gearbox can have problems with the fifth gear spline and hub.

It's important to check for a service record, particularly if the vehicle has spent time off-road. It's also important to check under the vehicle for damage sustained off-road, like bashed suspension and chassis components, brackets, exhaust etc.

On the exterior, look for scratches and scrapes from trackside bushes during road excursions.

Consider carefully before buying a Patrol that has clearly been off-road as there are plenty that haven't spent much time off the black top and they are a better choice.
AnswerID: 171756

Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Tuesday, May 09, 2006 at 17:50

Tuesday, May 09, 2006 at 17:50
Wow that is the first time I have heard of a journo writing about the problem. May I ask which publication?

Not disputing the information, but gee I would have thought that highway cruising would be a good scenario, what with the intercooler cooling an otherwise hot charge due to forward motion creating airflow thought the intercooler. Still I must confess, I wouldn't know what conditions would gve the highest EGT which is probably the critical parameter.

Dave O
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FollowupID: 427230

Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Tuesday, May 09, 2006 at 17:55

Tuesday, May 09, 2006 at 17:55
Begs the question, apart from short oil change intervals, keeping the oil level up, what can one do to protect the engine when highway cruising is what you do most? Lowering the boost somehow seems logical, but at what performance cost?
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FollowupID: 427232

Follow Up By: muzzimbidgie - Tuesday, May 09, 2006 at 20:37

Tuesday, May 09, 2006 at 20:37
I've asked it before and I'll ask it again !!!!!!!!!!!!!!!

Why would low oil result in a hole in the piston? IT WOULDN'T !!!!!!!

It's most likely to be a result of dodgy fuel delivery.

Low oil may increase the temperature of the engine, fine, but this would affect the bore/rings/piston/crank/bearings area more than just the top of the piston, which lets face it, is designed, and made, to withstand very high temperatures.

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FollowupID: 427273

Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Tuesday, May 09, 2006 at 20:51

Tuesday, May 09, 2006 at 20:51
I don't profess to know, but I do know that liquids are very efficient at absorbing heat energy compared to gases. What I understand the argument is, is that in these diesels oil is sprayed via nozzles directly at the unserside of the pistons especially to cool them. Thats what I understand the argument re oil is.

Dodgy fue delivery is most certainly the cause, if you ask me. Most likely an overfuel/overboost under high load. Hence my comment about highway cruising. Unless you are full throttle, I would guess the EGT wouldn;t be as high as it would at wider throtle high load such as towing a van, but I am not an expert on this stuff. I guess more oil capacity allows more heat absorption.

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FollowupID: 427276

Follow Up By: Muzzgit (WA) - Wednesday, May 10, 2006 at 00:03

Wednesday, May 10, 2006 at 00:03
Yes, I think you are spot on David. This crap about oil being squirted here and there doesn't sound right to me.

It's a well known fact that diesels run cooler than petrols, even if turbo charged. If it was an issue with the level/quantity/quality of the oil then we would see these motors with heavily worn rings, big ends, and main bearings.

I don't buy it.

Crap fuel injectors is what I recon it is, as I stated above (Muzzimbidgie is me at work).

The guys at United Fuel Injection here in Perth tell me that the injectors in the 3.0 patrol are "non serviceable" and cost about $400 each, yet when you go to Nissan, they recon they can perform an injector service for $140.00

Does that mean they put a bottle of injector cleaner in the fuel tank?

I hope not !!!!
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FollowupID: 427340

Follow Up By: hl - Wednesday, May 10, 2006 at 15:11

Wednesday, May 10, 2006 at 15:11
You don't expect a job that needs a spanner for that sort of money, do you?
Cheers
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FollowupID: 427466

Follow Up By: muzzimbidgie - Wednesday, May 10, 2006 at 15:19

Wednesday, May 10, 2006 at 15:19
Regardless of the cost, doing such a thing as to just use a bottle of fuel additive and call it "an injector service" is simply an act of extortion !!!

Albeit a small one, it's still an act extortion.
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FollowupID: 427468

Follow Up By: tex1972 - Sunday, May 14, 2006 at 22:12

Sunday, May 14, 2006 at 22:12
" This crap about oil being squirted here and there doesn't sound right to me. "
Diesel's especially turbo diesels all rely on oil squirted/splashed on the underside of the piston to cool it. Saw an absolute stuff up when an engine rebuilder sourced a secondhand block for a cat dozer engine and got the non-turbo block with no oil nozzles to direct onto the bottom of the piston. result HOLES in pistons
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FollowupID: 428327

Reply By: Exploder - Tuesday, May 09, 2006 at 18:26

Tuesday, May 09, 2006 at 18:26
I wonder if 2-piece articulated Piston’s would sort the 3.0Ltr Patrol Problems out.
AnswerID: 171776

Reply By: Motherhen - Tuesday, May 09, 2006 at 19:03

Tuesday, May 09, 2006 at 19:03
This is useful info - members here have referred to this page in a number of posts.

www.lonards-automotives.com.au/patrol.html

We now follow dealer recommendations of changing oil every 5,000 k (well, it was done twice during the 18,000 km we have just been), using Nissan filters, and using oil "ACEA B3 or JASO DH1 with a viscosity index of 10W40. Under no circumstances use API CG-4 oils" just in case!
Motherhen

Red desert dreaming

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AnswerID: 171784

Follow Up By: Exploder - Tuesday, May 09, 2006 at 19:23

Tuesday, May 09, 2006 at 19:23
You can add this to the list of useless information if you like.

JASO stands for> Japanese Automobile Standards Organisation.
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FollowupID: 427252

Follow Up By: David from David and Justine Olsen's 4WD Tag-Along - Tuesday, May 09, 2006 at 19:59

Tuesday, May 09, 2006 at 19:59
Motherhen

Looks like you would have done plenty of highway cruising and towing
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FollowupID: 427265

Reply By: Muzzgit (WA) - Wednesday, May 10, 2006 at 00:15

Wednesday, May 10, 2006 at 00:15
OH YEAH, I don't know where you got the idea that Nissan patrols have engine problems?

They are the best car ever made, just like broken diffs, er, I mean Landcruisers, or cracked chassis, er, I mean Landcruisers!!!

HAHAHAHAHAHA

It seems that not many of the popular 4WD's are as good as they proffess to be, ar are as good as they used to be. If we could all afford to drive the new Rangie, then I guess we would find out about it's shortcomings. Being voted "best 4X4 2005" in nearly every 4WD magazine in the world must mean they've done something right.

Wait for it.....I can hear the sound of keyboards clicking away as Toyota owners franticaly type a retort at me.

AH, BITE ME !!!
AnswerID: 171846

Follow Up By: TerraFirma - Wednesday, May 10, 2006 at 15:21

Wednesday, May 10, 2006 at 15:21
What the bloody hell are you talking about...??
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FollowupID: 427469

Reply By: Truckster (Vic) - Wednesday, May 10, 2006 at 07:52

Wednesday, May 10, 2006 at 07:52
Rex hunt would be very proud of all the fish you caught.
AnswerID: 171857

Follow Up By: TerraFirma - Wednesday, May 10, 2006 at 10:52

Wednesday, May 10, 2006 at 10:52
You gotta admit the bait was fantstic..!
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FollowupID: 427394

Reply By: TerraFirma - Wednesday, May 10, 2006 at 10:51

Wednesday, May 10, 2006 at 10:51
Here's the source on the problem, via Carsguide.com.au

Site Link

AnswerID: 171897

Reply By: 120scruiser (NSW) - Wednesday, May 10, 2006 at 21:22

Wednesday, May 10, 2006 at 21:22
It was printed in the daily telegraph, Sydney last year in the cars guide section by Graham Smith. He does a vehicle review every week.
AnswerID: 172024

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