phruntal
X-TRAIL NEWBIE
Date Registered: 07-2022
TOTAL POSTS: 25
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Re: X-trail T30 2.0 2001 tranmission gear change problem when under heavy load
In this instance I drove to the top, turned the car off, and waited one minute and turned it on and filmed that video, so the transmission wouldn't have had a chance to cool down, it's also done the same flashes when I park the car, go skiing for the day and come back to it and start it so it's had plenty of time to cool down. It only does it the first time I start the car after the drive, from them on it's back to normal, also there are no consequences to the flashes, it's not doing any fail safe thing or anything, once it's done its flashing I can drive as normal. I am wondering if it's done it forever and I didn't notice, I'm only more alert to it now that I had the shifting problem where it got stuck in first driving up which was fixed by replacing the MAF sensor.
I rang the Nissan dealer and asked and they had no idea what it could be, they just said they could run the computer over it and see if there is any stored fault codes but the local mechanic has done that and there aren't any his gadget picks up, it's all good on his.
The other ski field about 20 minutes further drive I can drive up no issues, it's a slightly smaller mountain where I am driving up 1200 meters instead of 1600 meters and not quite as long or steep of a drive and I don't get the O/D light flashing doing it.
It's a real puzzle to everyone. I guess if I never drive up that mountain I'd never see the flashing ever so it's just a real odd circumstance. It's very hard work for the car though.
Last edited by phruntal, 24/Sep/2022, 3:06 pm
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24/Sep/2022, 2:59 pm
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Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6360
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Re: X-trail T30 2.0 2001 tranmission gear change problem when under heavy load
Do you have it in 1,2 or D ?
Maybe next time try having it in 1 and only going about 30kph so you don't have it on full accelerator and see if it is the same in the afternoon with the flashing.
Might be a good idea to have the oil checked for both level and if it is getting overused.
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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24/Sep/2022, 6:54 pm
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Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6360
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Re: X-trail T30 2.0 2001 tranmission gear change problem when under heavy load
If you know the transmission changes into 2 or even 1 in the steepest bits then it would help to have it in a lower gear than D and unless your speed goes above 50kph then leaving it in atleast 2 would be advisable.
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog |
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25/Sep/2022, 8:26 am
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phruntal
X-TRAIL NEWBIE
Date Registered: 07-2022
TOTAL POSTS: 25
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Re: X-trail T30 2.0 2001 tranmission gear change problem when under heavy load
Ok, tried again today and used 2 instead of D and the car handled the drive much better than in D, in D is bounces around the gears a lot, in 2 it was better by far, I had to drop back to 1 a few times on a really steep bits or it struggled too much but other than that it was doing well. Then about 2/3 of the way up while in 2 suddenly my revs went from about 3000 to 5000 within a second while I was doing about 45km/h on a pretty steep bit like it dropped back to 1 but it only stayed there about 2 seconds and moved back up to 2, or it may not have even went to 1 and just lost the gear and went back into it, it all happened very quickly. Not sure if this was what you'd call a slip of if it just felt the need to drop back to 1 for 2 seconds?
In D I would never notice this as it drops back to 1st all the time in D, but I noticed in 2 as it wasn't dropping down gears all the time.
When I got to the top I turned the car off, waited 5 seconds, turned it on and the OD light did the same flash pattern as in the previous video.
Perhaps the old girls just finding that particular mountain drive too hard these days, she's getting on, it's a 2001 with virtually 300,000km's on the clock. It's just been such a good reliable car and it's done this same mountain drive hundreds of times without issue so it's sad to see it now struggling. It's still perfect for everything other than this mountain so maybe I just need to retire it from that mountain drive then I'll never have the OD light flash again.
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26/Sep/2022, 12:31 pm
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Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6360
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Re: X-trail T30 2.0 2001 tranmission gear change problem when under heavy load
It could be possible that the transmission did for a short while change into 1 and then with the revs so high decided to go back to 2.
Usually there is more hesitation from the transmission if the engine is down on power and torque so it might be worthwhile having the compression and timing checked to see if that might be contributing to the transmission strugging.
Still cannot explain the flashing OD light though and nothing found in the service manual.
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog |
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26/Sep/2022, 11:01 pm
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Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6360
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Re: X-trail T30 2.0 2001 tranmission gear change problem when under heavy load
I would not like to trust it.
Another member here who had his engine rebuilt was told by the engine rebuilder that the additives were gunking up his system.
quote:
He mentioned that everything had a yellow tinge under the microscope and that an engine additive (you know the ones!!) has been used (guilty emoticon !!) and has built up a crappy layer of bearing hating sludge which ruined everything over time.. The advice was to never use that s***!!!.
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog |
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27/Sep/2022, 1:41 pm
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Scrap that idea then.
