GU Patrol noisy transmission
Submitted: Thursday, Jul 28, 2005 at 13:03
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weldman
Is it true that all GU 4.2l turbo diesel patrols have a strange noise that comes from the transfer box at low revs. My Nissan dealer says that as the noise is in all of them to a certain degree then Nissan would not help me. Also could this noise also be responsible for a bad vibration that comes in at 90kph and goes at approx 120kph?
Reply By: Truckster (Vic) - Thursday, Jul 28, 2005 at 13:21
Thursday, Jul 28, 2005 at 13:21
no not all have noises.
ask your nissan dealer to take you for a drive in 4 other of same model to see if they are all the same
and theres 10000 variables to what can cause the viabrations.
How old is it
what tires
what mods
??
AnswerID:
122535
Reply By: warthog - Thursday, Jul 28, 2005 at 13:27
Thursday, Jul 28, 2005 at 13:27
Mine has that noise if you change gears at low revs, disappears at around 1100-1200 revs, worse the harder the throttle is applied, I have heard previously it is normal and I'm not concerned by it. I just don't tromp it at low revs. I don't have the vibration though. When my front diff lock was fitted the mechanic said the front prop shaft was out of phase (uni fitted on the shaft rotated out of line with the other) and asked if there was a vibration present in 4wd, which there wasn't. For this to be the cause of your prob it would have to be the rear one. I have std steel wheels and they aren't a prob but have heard they can cause a steering shimmy/vibration? Wheel balance? Dodgy/delaminating tyre?
AnswerID:
122536
Follow Up By: warthog - Thursday, Jul 28, 2005 at 13:37
Thursday, Jul 28, 2005 at 13:37
Have a look at here They mention a common low speed transmission vibration.
FollowupID:
377702
Follow Up By: warthog - Thursday, Jul 28, 2005 at 15:39
Thursday, Jul 28, 2005 at 15:39
Sorry not vibration "chatter". I don't want to mislead and convey the impression the gearbox is shaking around. There is nothing felt through the gear lever just a noise that I spose you could call a "chatter" is heard at low revs.
FollowupID:
377728
Reply By: Sand Man (SA) - Thursday, Jul 28, 2005 at 14:16
Thursday, Jul 28, 2005 at 14:16
Blimey,
The more I read about problems with the Nissan Patrols, the less likely I am inclined to consider buying one.
Sooner or later I will need to change from my Jack to something else.
You guys are slowly steering me away from the Pootrol though.
AnswerID:
122547
Follow Up By: warthog - Thursday, Jul 28, 2005 at 14:27
Thursday, Jul 28, 2005 at 14:27
Holden adventra perhaps? Similar offroad ability I believe....
FollowupID:
377708
Follow Up By: warthog - Thursday, Jul 28, 2005 at 14:32
Thursday, Jul 28, 2005 at 14:32
Just joking. The transmission noise is just that, a noise, don't know about other problems, just
mine hasn't let me down. Spent that much on the bloody thing I've got to talk it up anyway.
FollowupID:
377711
Follow Up By: Member - Roachie (SA) - Thursday, Jul 28, 2005 at 14:48
Thursday, Jul 28, 2005 at 14:48
I've had 3 Patrols now and they've all had the same transmission noise. Just remember that the gearbox in the Patrol is from their truck range. It weighs about the same as the motor out of a mini minor and has a relatively large mass of moving parts (compared to most other common 4x4 boxes). You just accept the noise after a while.....it's not an unpleaseant noise; more of a reassurance that everything is still in there doing what you're paying it to do!!! lolol
FollowupID:
377716
Follow Up By: Gerhardp1 - Thursday, Jul 28, 2005 at 17:30
Thursday, Jul 28, 2005 at 17:30
Hey Sandman, keep your fingers crossed that the H3 comes in - that will be a perfect replacement for the Jack IMHO.
I'll be after the one with 4.1 low range gearing and 33" tyres standard!
Cheers
Gerhard
FollowupID:
377746
Reply By: Michael ( Moss Vale NSW) - Thursday, Jul 28, 2005 at 17:08
Thursday, Jul 28, 2005 at 17:08
The noise is totally normal, the amount varies from vehicle to vehicle...
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AnswerID:
122576
Reply By: Martyn (WA) - Thursday, Jul 28, 2005 at 17:51
Thursday, Jul 28, 2005 at 17:51
Weldman,
Are you sure it's coming from the transfer case? The chattering noise can come from
the springs in the clutch assembly if the assembly has done a few K's and it's the non genuine clutch. The GQ's have inherant noises but they last a life time. You might change the oils
check the condition, look for water ingress etc. I changed the oils this made a difference, correct grades also important.
AnswerID:
122583
Reply By: GUPatrol - Thursday, Jul 28, 2005 at 18:05
Thursday, Jul 28, 2005 at 18:05
THe noise is called gear chatter and although it comes from the gearbox it is actually caused by engine vibration at low rpm.
The 4.2L engine/gearbox combination is from a bus.
The reference to the clutch plate springs is due to the fact that Nissan uses double springs in the plate to minimise vibration transmited to the body. Those springs are quite soft under low tension but they are progressive.
Sometimes people change the plate to a heavier duty one and the noise disspears or shifts up the rev range...
To overcome this noise the new 3.0L models and the 2.8 have an oil filled flywheel which is designed to absorb vibrations.
The noise is perfectly normal.... and it is from new, no problems....
Will
AnswerID:
122584
Follow Up By: weldman - Friday, Jul 29, 2005 at 10:30
Friday, Jul 29, 2005 at 10:30
Thanks for your
feedback fellas, but should I be worried? The noise i am referring to is not how you have described. My noise is almost definately coming from the transfer box and could be described as a fairly loud grumble/chatter after the vehicle has warmed up. It occurrs in 1st and reverse when I back off and the revs start dropping below 1200 - 1000, as would happen when going round a car park or down the driveway etc. It is a new vehicle and I mentioned the noise to the dealer at 1000km service
FollowupID:
377850