Patrol 4.2 Blown 5th Gear

Submitted: Friday, Apr 04, 2008 at 08:35
ThreadID: 56267 Views:2133 Replies:9 FollowUps:5
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Last night whilst driving home ( I commute from Wollongong to Sydney ) and accelerating up a small hill, bang went 5th gear complete with a nice grinding noise to follow.
I am aware that there was a manufacturing fault with the 5th gear spline engagement in some of the 2000 models, mine being a late 1999 build wasn`t sure if it was affected or not.
Has anyone had this happen outside of warranty and if so did Nissan help out in any way?
The veichle has 315k on it.
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Reply By: Notso - Friday, Apr 04, 2008 at 09:07

Friday, Apr 04, 2008 at 09:07
I doubt that you'd get any help with the 315k on it.

They did bring out a fix kit for the ones that stripped top gear splines.

AnswerID: 296570

Reply By: Member - Ed. C. (QLD) - Friday, Apr 04, 2008 at 10:02

Friday, Apr 04, 2008 at 10:02
315k!!! Woww!! that must be a record! (assuming that it is indeed one of rhe faulty batch?).....

I got one of the crook ones, and mine was built April '99, so it is certainly possible that yours is one of the affected ones:((
(Nissan will know, in any case you'll find out when the 'box is opened up;-))

They were covering these for 5yrs/200000km, so yours is well out of warranty on all counts.. I don't like yer chances of getting any help from Nissan ..
Mine went at 5½ yrs & approx 78k, and they rejected the claim (bugga!!!!).....
Confucius say.....
"He who lie underneath automobile with tool in hand,
....Not necessarily mechanic!!"

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AnswerID: 296585

Reply By: MJP - Friday, Apr 04, 2008 at 14:09

Friday, Apr 04, 2008 at 14:09
I had this happen to my 2000 4.2TD a while back. Think i had about 180K on the clock but it was out of warranty. After alot of phone calls and pushing i managed to get Nissan to contribute the parts but i had to pay labour. Cost me $1700.
Their explanation was that on the earlier models 5th gear is only splined half way through which causes this issue. Later models had 5th splined right through the gear to allow for better contact with the main shaft.
Good Luck.
AnswerID: 296625

Reply By: Member - joc45 (WA) - Friday, Apr 04, 2008 at 14:17

Friday, Apr 04, 2008 at 14:17
Yep, that was the era fo the faulty batch. Mine was a Dec 1999 build and it went at about 120,000, never used as a tow vehicle. But I was ploughing into a severe headwind at the time it went
Suggest even with the k's you have, try Nissan HO for parts if not labour, as it was a design fault.
AnswerID: 296628

Reply By: Member - John - Friday, Apr 04, 2008 at 19:11

Friday, Apr 04, 2008 at 19:11
Biz, if you don't have any luck with Nissan, I do have a brand new fifth gear to suit as well as a complete g/box in pieces, good price too. John
John and Jan

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AnswerID: 296671

Reply By: Trevor R (QLD) - Friday, Apr 04, 2008 at 20:28

Friday, Apr 04, 2008 at 20:28
Yeah soory for your bad luck, I had the similar happen to my 2000 model with 280 on the clock. Absolutely no help from Nissan (as I expected, they have been bleep to me from the word go), it is the length of the splines on the main shaft not going right through 5th gear that results in this happening. New mainshaft and 5th gear will fix but one thing I will add is ask to see the spacer sitting beside 5th the GU it is a solid tube sealed tight up against 5th gear, but in the GQ (which fits a GU) it has a semi-circle cut out allowing oil to reach the mainshaft unlike the GU one so I had the old GQ spacer added to mine in the rebuild. Could also be worth looking into a taller 5th gear if you want your rig to run at lower rpm when cruising at the 110kph speed limit down your way. Just a thought.

Good luck with the rebuild and sorry to hear of another one gone.
AnswerID: 296691

Follow Up By: ian.m - Friday, Apr 04, 2008 at 21:47

Friday, Apr 04, 2008 at 21:47
Hi trevor, have you got a taller 5th gear ratio, if so, who from, how much, etc my 99 4.2td still going strong, but would'nt mind bit steeper 5th??
FollowupID: 562783

Follow Up By: Member - Roachie (SA) - Friday, Apr 04, 2008 at 22:10

Friday, Apr 04, 2008 at 22:10
Check out:


FollowupID: 562788

Follow Up By: ian.m - Friday, Apr 04, 2008 at 22:43

Friday, Apr 04, 2008 at 22:43
Cheers, roachie, you know sometimes i cant see the forest for the trees.
FollowupID: 562795

Follow Up By: Trevor R (QLD) - Saturday, Apr 05, 2008 at 14:49

Saturday, Apr 05, 2008 at 14:49
Ian, I don't have a taller 5th. I found out it was available after mine was rebuilt....DOH!!!!

Thanks for giving link out Roachie, heaps of work making it hard to spend much time on here lately. Man that has to be a worry with the colour of your g/box oil? It is the tell tale warning sign as I have been told too.

Too much of this crap going on with no help in fixing it from Nissan. Just hope threads like this one are read by potential new Patrol buyers before they put their money where there heart is.

Cheers Cob.
FollowupID: 562865

Reply By: autosparky - Friday, Apr 04, 2008 at 22:55

Friday, Apr 04, 2008 at 22:55
dont feel left out similar problems with 79 series troopiy
AnswerID: 296726

Reply By: Member - craig W (NSW) - Saturday, Apr 05, 2008 at 07:26

Saturday, Apr 05, 2008 at 07:26
Hi there!! U did well to get to 315 ks for sure!! Mine went last year at 130 ks 2000 model.Yours is definatley got the dodgy 5 th gear. I was lucky to get Nissan to supply only the new 5th gear kit!!And it took a lot of hard work to get that!!! Found out later its only sold for $550 new any way??? Good luck!!!
AnswerID: 296744

Reply By: Member - clog wog(NSW) - Saturday, Apr 05, 2008 at 12:22

Saturday, Apr 05, 2008 at 12:22
Hi There, welcome to the '5th gear club', you'll be happy to know there are quite a few members. We lost our 5th gear 4 weeks ago and have just had it done, Nissan was no help. We did 5th at 200,000 kms. Our total cost for the repair was $2572.17 at a Nissan Dealer and we were without our car for 9 days including the Easter break, not happy.
We tried with Nissan and they wouldn't cover it because of the kms.
This price included a new clutch.
We were told Nissan knows of the problem and have done some for free but our kms were too high and they wouldn't come to the party.
We plan to peruse this with fair trading, it is worth a try.
Let us know now you go with Nissan with kms.
AnswerID: 296782

Follow Up By: Member - Roachie (SA) - Saturday, Apr 05, 2008 at 12:44

Saturday, Apr 05, 2008 at 12:44
G'day Dutchie......

It might be worth starting a thread on the Patrol Forum to see if you get a list of the vehicles that have suffered this problem and at what mileage. I had my previous rig done by Nissan under warranty when it had 88000klm on it ....5th actually hadn't blown, but the Nissan head of local workshop, said it was just about to let go....he could tell because the colour of the oil was like coffee.

My current rig (not the same one), has done 212000klm and I recently changed the GBox was coffee coloured too; so I'm thinking this one is just about to let go as well...... Having had a 6.5 Chevvy in it for all of it's life, I'm a bit surprised that 5th hadn't blown on this one before (maybe it had....I don't know the full history).

FollowupID: 562856

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