t_rage Posted August 4, 2016 Share Posted August 4, 2016 Hi all, new to the Z scene, been about 2 weeks with my 2004 GT 75K miles. Bought with an extremely high clutch which started to slip and got the clutch changed under warranty putting in some money towards the DMF. However a few days ago noticed a high pitch whine around the transmission when acclerationg from 2nd slowly getting worse going down the gears. Have been through some of the threads and nothing sounds the same just wondering if anyone has had a similar issue. Or if the gearbox is toast, sounds like a dodgy bearing! As it's quite a way to the dealer I got it from and might get it transported. Got a few vids of the sound if it helps. Thanks Quote Link to comment Share on other sites More sharing options...
PageyUK Posted August 4, 2016 Share Posted August 4, 2016 Did they change the oil in the gearbox? If not, I'd try that first to see if it solves the issue. Does the noise stop if you press the clutch? 1 Quote Link to comment Share on other sites More sharing options...
t_rage Posted August 4, 2016 Author Share Posted August 4, 2016 Thanks for the quick reply! No doesn’t change when in neutral pipes up on overrun and doesn’t stop until the stationary, but changes tone when shifting. I have phoned them they mentioned the oil level was fine and the bearings can’t go that quickly but didn’t say if they had replaced it. I can look into getting the Trans oil replaced as was due a P3 service. Maybe adding something like molyslip? Not overjoyed with the work as they broke a few rusty fixings that are still in the frame from the mid undertray and left it flapping about for my journey home. Which had have worn away the tray so can’t even screw it in again!! Quote Link to comment Share on other sites More sharing options...
PageyUK Posted August 5, 2016 Share Posted August 5, 2016 I'd take it back and get them to check it. Defo worth changing the gearbox oil, nothing to lose there. Quote Link to comment Share on other sites More sharing options...
Ebized Posted August 5, 2016 Share Posted August 5, 2016 I think you are best off taking the car to one of the respected independents for a diagnosis as given what you said about the work done, going back there doesn't bode well I fear. The boxes on the Zeds are know to be "agricultural", but are generally bullet proof and I do wonder if your whine stems from the clutch/DMF change. Also, if the gearbox oil has been changed it is important the Nissan brand is used. If you post up your general location with an ask about a locally recommended Indy that will help to direct you. Good luck Quote Link to comment Share on other sites More sharing options...
t_rage Posted August 5, 2016 Author Share Posted August 5, 2016 Thanks for the advice I'm only about half an hour away from cougar store Leicester. They suggested to take it back under warranty to check the work/transmission etc, as messing about with it might void it so a bit of risk. Spoke to the dealer they want me to use a transporter about £150 or so. No point until next week now. If I were to do a cheeky oil change to in case of a quick fix and save the hassle what have you guys used. Local Nissan dealer hasn't got any in stock lol! He did mention it was XZ85 whatever that is?! Quote Link to comment Share on other sites More sharing options...
brillomaster Posted August 5, 2016 Share Posted August 5, 2016 to be honest my 2003 car used to have a bit of what I can assume was diff whine... was noticeable accelerating in 2nd and third gears, didn't seem so bad after that. unless its really loud i'd take it to CS and ask for their opinion. but certainly an oil change with the correct stuff wouldn't hurt if it hasn't already been done. Quote Link to comment Share on other sites More sharing options...
t_rage Posted August 12, 2016 Author Share Posted August 12, 2016 (edited) Hi all quick update had it checked over predictably they didn't find an issue. Although is quite intermittent which doesn't help! Transmission oil swapped out with Motul motylgear. Now developed a weird humming for about a minute on cold mornings with throttle only! Then the gearbox sound from about 1.07 onwards on vid below. Next steps get the rusted fixings out and get the undershield back on, make sure there are no flappy heatshields. Then get it checked out on the P3 service from a specialist as suggested, cheers. Edited August 13, 2016 by t_rage Quote Link to comment Share on other sites More sharing options...
Keyser Posted August 13, 2016 Share Posted August 13, 2016 Sounds like the thrust bearing to me having listened to the vid, maybe they didn't grease the primary shaft, is the noise getting less? sometimes they do take a few miles to bed in and go quiet - but you may have already done 1000 miles Cougar should be able to work it out though Quote Link to comment Share on other sites More sharing options...
t_rage Posted August 13, 2016 Author Share Posted August 13, 2016 (edited) Didn't think it was the thrust bearing as could make it come on and disengage the clutch and it's still making a sound lol. Showed a few car guys from work who can't quite place it either done about 400 miles since and only developed the noises 20 miles ago. Very strange! I don't think its something car threatening so will get to the bottom of it eventually. Cheers Edited August 13, 2016 by t_rage Quote Link to comment Share on other sites More sharing options...
evest Posted August 19, 2016 Share Posted August 19, 2016 I recently used motul 300 and it did not agree with the gearbox. Immediately changed back to correct OEM stuff from Nissan and it's sorted. Worth a try mate, it will eliminate that variable at least. Quote Link to comment Share on other sites More sharing options...
t_rage Posted August 21, 2016 Author Share Posted August 21, 2016 Interesting to know cheers. What kind of symptoms did you get out of interest?? Haven't been able to get under the car again will give it a try. Quote Link to comment Share on other sites More sharing options...
evest Posted August 21, 2016 Share Posted August 21, 2016 It sounded similar to completely worn brake pads on a brake disc - that metal on metal grinding sound at low speed. I got the impression that the oil wasn't lubricating as it should. Can't really say at higher speed due to the exhaust noise and I didn't drive very far once I noticed the problem. I think other folks have had problems with non-nissan gear oil too. That said, I used motul 300 LS in the diff and no problem there. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.