GU 3.0L Lost power / Air flow meter??

Submitted: Friday, Jul 23, 2004 at 10:28
ThreadID: 14938 Views:4036 Replies:9 FollowUps:16
This Thread has been Archived
Gooday Patrol Owners,

My mate has a 2001 GU 3.0L and a couple of days ago he was driving home at 100KM/h and he suddenly lost power to the point where he could not get above 90 km/h. After reading some posts on this forum our first thoughts were a retired engine (piston problem). The car was at Giant Nissian in Perth for a short time and they seem to think it is a fuel / fuel filter problem. However after contacting a Nissian mechanic in the far north (friend of old man's) he believes it is associated with the airflow meter which builds up dust on it. Since my friend recently put in a new K&N filter (lightly oiled) I was thinking the oil may have fouled the meter. If anyone has heard about air flow meter problems on GU's please reply.

Cheers everyone!!
Back Expand Un-Read 0 Moderator

Reply By: Michael - Friday, Jul 23, 2004 at 10:34

Friday, Jul 23, 2004 at 10:34
Another 3 litre problem.... it never ends.
AnswerID: 69219

Follow Up By: Member - Michael- Friday, Jul 23, 2004 at 10:57

Friday, Jul 23, 2004 at 10:57
Turbos
Get your mate to check the fuel filter first, I had a similar problem earlier this year and It cost me $170 to find this out thanks to my 'friendly?' Nissan dealer, anew fuel filter =$50
Mike
May the fleas of a thousand afghan camels infect the crutch of your enemy and may their arms be too short to scratch.

Lifetime Member
My Profile  Send Message

0
FollowupID: 329572

Follow Up By: mick - Friday, Jul 23, 2004 at 11:01

Friday, Jul 23, 2004 at 11:01
Michael,

Not another 3 litre problem, just someone doing something they weren't supposed to be doin, a post not long ago indicated that its a No No to use oiled filters with this set up as it throws the air/fuel reading right out.

Mick
0
FollowupID: 329575

Follow Up By: Michael - Friday, Jul 23, 2004 at 11:31

Friday, Jul 23, 2004 at 11:31
Mick, yes ur right, i didnt read the post properly, of course the oil is the likely cause oopppppppp.. Having trouble getting my foot out of my mouth..... LOL
0
FollowupID: 329582

Reply By: Truckster (Vic) - Friday, Jul 23, 2004 at 11:01

Friday, Jul 23, 2004 at 11:01
Air flow sensor, $1000+ 99% of cases no warranty.

K&N filter wont go in his favor...
AnswerID: 69222

Follow Up By: Michael - Friday, Jul 23, 2004 at 11:20

Friday, Jul 23, 2004 at 11:20
Truckster, A diesel mechanic i know, said you can buy just the sensor. The $1000+ part is the whole air ram plastic bit, the complete assembly . If you push Nissan they will sell just the wire grid sensor part for about $240.. I believe this to be correct as this is what the dealers use for warranty replacements... Michael

Ps,, so i'm told
0
FollowupID: 329580

Follow Up By: Savvas - Friday, Jul 23, 2004 at 14:39

Friday, Jul 23, 2004 at 14:39
Have also read somewhere on this forum that the air flow sensors can be cleaned with spray on carby cleaner and let dry.

I'd give that a shot first if the sensor is said to be stuffed.
0
FollowupID: 329602

Reply By: Member - Captain (WA) - Friday, Jul 23, 2004 at 11:38

Friday, Jul 23, 2004 at 11:38
While I don't know what this problem is, I would certainly suspect the air filter. Its a big no-no to use oiled filters on any motor with an air flow meter. The fact the engine still ran, just with less power, indicates that the ECU restricted the fuel as it didn't know how much air was available, or it could be a blocked fuel filter too...

Keep us informed on how it goes.

Cheers

Captain
Its not what you drive, but how you drive it!
LC 200 + AOR Quantum

Member
My Profile  My Blog  My Position  Send Message

AnswerID: 69229

Follow Up By: Savvas - Saturday, Jul 24, 2004 at 07:45

Saturday, Jul 24, 2004 at 07:45
I don't know about it being a big no-no.

I have had a two stage oiled Finer Filter in my Jackaroo for the past four years without a problem. The air flow meter is right at the airbox and is still clean and functioning.

0
FollowupID: 329698

Follow Up By: Savvas - Saturday, Jul 24, 2004 at 07:46

Saturday, Jul 24, 2004 at 07:46
Petrol V6 that is ... a/f meter on Jack diesel is at the throttle body
0
FollowupID: 329699

Reply By: andysgu - Friday, Jul 23, 2004 at 12:01

Friday, Jul 23, 2004 at 12:01
Heard of this problem before check out the Patrol / Patrol GU forums on yahoo.
Andy.
AnswerID: 69234

Follow Up By: Turbos - Friday, Jul 23, 2004 at 12:36

Friday, Jul 23, 2004 at 12:36
Cheers for the replies, I'll keep ya's posted on how it goes. The nissian dealer did mention something about the fuel filter but i'll keep you informed. I have a 2000 TD jackaroo (my patrol mate bags me all the time yet were dead equal when we drag off the lights!) with a K&N and i don't think it has affected my engine - although mine is getting repaired for a suspected oil regulator switch. I think I noticed GU's having a sensor immediately after the air filter (am I right??) whereas the jack has it's first sensor at the throttle body which is subject to oil problems from the heavily oiled foam filters (causes check engine light to go on). Therefore since the K&N is only lightly oiled I think the sensor being so close to the filter (together with the oil or course) could be causing the problem?? anyhow its an interesting problem so i'll lets you all know ASAP. Cheers for the responses.
0
FollowupID: 329588

Reply By: Member - Jeff M (WA) - Friday, Jul 23, 2004 at 13:06

Friday, Jul 23, 2004 at 13:06
Certainly sounds like the ECU has gone into failsafe mode, our work GU did this several times, they replaced air flow meters and EGR valves. It was in at Nissan for over 3 weeks over 3 visits. Runs ok now...
AnswerID: 69244

Reply By: Member - Andrew O - Friday, Jul 23, 2004 at 13:15

Friday, Jul 23, 2004 at 13:15
Assuming it is the air flow meter, after market meters are available from Denco Deisel in wagga. Denco specialise in Nissan Deisels, so you can be assured of a quality product at a much more reasonable price than the genuine part.

Cheers
Andrew
AnswerID: 69245

Follow Up By: Puddin & Gumnut (Sydney) - Friday, Jul 23, 2004 at 13:47

Friday, Jul 23, 2004 at 13:47
Thanks for that tip Andrew, I will file it for future needs.
0
FollowupID: 329593

Follow Up By: ChrisWhite - Friday, Jul 23, 2004 at 13:51

Friday, Jul 23, 2004 at 13:51
Andrew - i'm the mate with the GU patrol thats playing up over here in Perth... can you give contact details and/or prices of new air flow meter or just the wire mesh replacement?
0
FollowupID: 329595

Follow Up By: Turbos - Friday, Jul 23, 2004 at 14:06

Friday, Jul 23, 2004 at 14:06
Good to see you learnt how to use a computer/login Mr Chris now I don't have to do the dirty work for ya. Now would some one please convince him to get on the bleep tonight!!
0
FollowupID: 329596

Follow Up By: Member - Andrew O - Friday, Jul 23, 2004 at 14:32

Friday, Jul 23, 2004 at 14:32
OK Fellas - from the white pages:

DENCO DIESEL AND TURBO
Fuel Pump, Injectors & Turbo Chargers
364 Edward St Wagga Wagga 2650 (02) 6925 4348
OR... (02) 6925 3722
Fax (02) 6925 3314
Internet www.dencodiesel.com
Email sales@dencodeisel.com

I met up with these guys at the Diesel Information Day run by Cooma Diesel in canberra - struck me as pretty straight up and down guys. If there was a serious problem with my car, I'd be on the phone to them no questions. They did mention the price for the meter, I seem to recall it being around $450, but don't hold me to it.

Cheers and good luck
Andrew
0
FollowupID: 329599

Follow Up By: Member - Andrew O - Friday, Jul 23, 2004 at 14:36

Friday, Jul 23, 2004 at 14:36
Oh and by the way turbos ... if you have to convice your mates to get on the bleep ... find some new mates!!

Avagoodone
Andrew
0
FollowupID: 329600

Follow Up By: ChrisWhite - Friday, Jul 23, 2004 at 15:18

Friday, Jul 23, 2004 at 15:18
Thanks for that Andrew. Turbos is the ashamed owner of a problematic Jackaroo, the majority of his closet consists of Ford clothing. He's a mixed up boy what can i say!
0
FollowupID: 329606

Follow Up By: Turbos - Friday, Jul 23, 2004 at 16:32

Friday, Jul 23, 2004 at 16:32
I'll see you at the lights Chris!!! But most likely in my rear-view mirror!!!
Even more so now that ya turbo won't spool up!! problematic patrol ay.
0
FollowupID: 329610

Reply By: bob - Friday, Jul 23, 2004 at 16:32

Friday, Jul 23, 2004 at 16:32
Turbos

Had very similar problem with our 2001 ZD30 whilst up at barrington tops. Refer post 12860

Regards

Bob A
AnswerID: 69266

Follow Up By: Turbos - Friday, Jul 23, 2004 at 16:50

Friday, Jul 23, 2004 at 16:50
I just read your post, sounds interesting. I got an email from Chris and the mechanics said the air flow meter SEEMS ok and that the turbo is failing to spool up. He did not mention why this is happening but could it be lack of fuel (ie lack of exhaust gas) or could it be buggered ball bearings in the turbo (? if I know) - Chris was told that modern day turbos do not require idling after running as some mechanism?? maintains oil pressure to the turbo bearing after shut down. In dis-belief I had a turbo timer fitted. I also took the inlet housing off my turbo, turned the engine on and then reved the engine to 3K. I turned the engine off and wached the compressor turbine spin for at 30 sec. I then immediately turned the engine back on. Buggered if i'm going to risk a 2.5 K turbo, when the timer cost $80. For Chris' sake I hope its not a turbo problem as I believe those garrett turbos (ball bearing) are not rebuildable.
0
FollowupID: 329611

Reply By: awill4x4 - Friday, Jul 23, 2004 at 21:24

Friday, Jul 23, 2004 at 21:24
Turbo's, the main problem with the ZD30 turbo on the 3 litre diesel is that it's a "variable vane" type which is controlled by the ECU.
There is no wastegate, boost is controlled by a vane in the exhaust housing which constantly moves when instructed by the ECU. Effectively, this gives you a turbo with good low down response but as the vane moves it allows the turbine housing to become larger increasing its volumetric efficiency so you have both a small turbo and larger turbo at the same time.
All well in theory but if there are problems either with the ECU or with the vane seizing you can end up with a turbo overboosting and with a resultant overspeed on the impeller and turbo failure. When they are working they work well but if the fail they cost about $4000 to replace.
Nissan have been known to replace even if out of warranty if customers push hard enough.
Regards Andrew.
AnswerID: 69356

Reply By: Member - Andrew(WA) - Saturday, Jul 24, 2004 at 18:01

Saturday, Jul 24, 2004 at 18:01
I have a Series III and the same thing happened to me. ECU took over and I couldn't go over @80km/h in the middle of the Nullabor Plain, on a weekend, in the rain. I could go on!

Long story short, it was just dirty fuel had clogged the filter. New Filter...no probs since.

What people say about after market air filters effecting the air flow sensor is correct...don't use them. Theres nothing wrong with the original anyway.

cheers
AnswerID: 69425

Sponsored Links

Popular Products (13)