3.0l gu patrol information

Submitted: Thursday, Feb 20, 2003 at 10:15
ThreadID: 3463 Views:1621 Replies:3 FollowUps:5
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Further to Andrews comments though I'd post details of my discussion with a Nissan mechanic and the 3l GU. One of the main repetative car problems he has experienced relates to a sudden and significant power loss similar to the level of power loss experienced when the turbo boost hose comes off. The problem is due to a dirty air flow monitor screwing up the computer chip and hence fuel management system. What happens is that the air filter clogs resulting in a breach in the filter seal which allows nasties to bypass the filter and do the damage to the monitor. The remedy - simple just replace the monitor (it's a disposable job). Great under warranty but at $1300 ea you wouldn't want to be doing it too often after expiry! The mechanic advised that the filter, being oil coated, to order to collect v small particles, blocks very quickly, (I've been replacing mine every 10,00km) but he advises that more like every 5,00 may be more appropriate in harsh conditions. He also advised that if a non-genuine filter is found to be being used then Nissan will change the monitor once then wash their hands of any future warranty of the monitor. Food for thought. For those with asnorkel a pre-filter may be a useful addition (such as unifilters precleaner) they reckon that all the mining co.s use them.
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Reply By: PeteG - Thursday, Feb 20, 2003 at 12:13

Thursday, Feb 20, 2003 at 12:13

Thanks for the info. Where is this monitor located - are we talking about the Air Control Valve which is about 250mm on the turbo side of the A/Cleaner. I assume the power loss in this situation becomes permanent. I understand there was a dicky batch of the air control valve as described above

On another note I have just had turbo assy changed due to the failure of the dashpot which actuates the variable turbo nose cone. This was an intermittent problem but caused a big power loss ie from 100 back to third gear. Had to go for a drive with a data logger and when plotted up on the computer you could see that the boost was not happening on acceleration. The failed part would cost about $50 to replace but is not serviceable - hence $6000 worth of turbo assy. Fortunately got it under warranty. Now have 120k's but with unresolved issues reported since 75k's.

New turbo has fixed the acceleration but vehicle is still not what it used to be.

I was surprised how quickly the filter clogs and would strongly recommend a snorkel. (dont have one this vehicle but definitately on the next).

Pete G
AnswerID: 13569

Follow Up By: Just - Friday, Feb 21, 2003 at 12:28

Friday, Feb 21, 2003 at 12:28
I may have the wrong name - your description of the location the Air Control Value apprear correct and yes power loss is permenant until it's replaced. On the subject of getting a snorkel, I have had one since purchasing the vehicle that's propobly why I've got away with 10,000 km filter changes.
FollowupID: 8027

Reply By: Striker - Thursday, Feb 20, 2003 at 13:37

Thursday, Feb 20, 2003 at 13:37
Blow me down mates. The cost of parts etc on these modern vehicles never fails to amaze me. It's crazy
AnswerID: 13574

Follow Up By: Truckster - Thursday, Feb 20, 2003 at 15:54

Thursday, Feb 20, 2003 at 15:54
thats nothing, $1200 for wheel bearings for one model Jeep. you couldnt get the bearings off, they are a one piece unit, whole stub axle!!

Someone had one on one forum $12000 for a new head no valves or anything.. just the head.!
FollowupID: 7964

Follow Up By: Just - Friday, Feb 21, 2003 at 12:30

Friday, Feb 21, 2003 at 12:30
I'm sure their argument is 'if you can afford to buy one you can afford to fix it!'
FollowupID: 8028

Follow Up By: Tim - Friday, Feb 21, 2003 at 13:49

Friday, Feb 21, 2003 at 13:49
and !!!!!!!!!! over $800.00 for a replacement alloy wheel - now thats bs
FollowupID: 8032

Follow Up By: Truckster - Friday, Feb 21, 2003 at 21:38

Friday, Feb 21, 2003 at 21:38
$12,000 for a TD5 Head I think it was......

beat that if you dare.. :(
FollowupID: 8097

Reply By: Striker - Friday, Feb 21, 2003 at 12:45

Friday, Feb 21, 2003 at 12:45
They're just highway robbers. This country aint what it used to be thats fur sure. The baby boomer governments have stuffed the whole country for us and our children. Banjo will be turning in his grave.

"We go waltzing matilda no more"


AnswerID: 13642

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