Page: 1 2 3
phruntal
X-TRAIL NEWBIE
Date Registered: 07-2022
TOTAL POSTS: 25
|
|
|
|
X-trail T30 2.0 2001 tranmission gear change problem when under heavy load
Hey People,
I'm new to the forum and not very mechanically minded however I've got a bit of a problem and my local machine isn't sure of the cause either.
I have a 2001 T30 X-trail 4x4 with a 2.0 litre engine and I have a rather strange problem that's just started.
It first manifested itself about 12 months ago towing my Caravan, we were in a hilly area and all the sudden it seemed to drop down into 1st gear on the auto going up the hill, this isn't out of the ordinary as we were going quite slow and it was a steep incline, the weird thing is it never wanted to come out of that first gear so we had trouble doing over 40km/h and the RPM's would go sky high and it wouldn't change gear.
We parked up for 10 minutes and tried driving again and all was well, we continued on and parked up the Caravan, the next day we drove the 4 hours home and it was fine the entire trip, although no more really big hills to deal with.
Now it's ski season and we've been driving up mountains to go skiing, one mountain is about 1500m to the base car park and it's been fine on that one, the one that is 2000m drive up we are getting the same problem right near the where we get to the top car park to park the car it's dropping back into this 1st type gear and revving like mad if we try accelerate, similar to if I was to shift the auto into 1st manually and again it won't change out of 1st in Auto. If we turn the car off, wait a couple of minutes and start it again its working fine although if we continue to try driving up the mountain it will do it again very quickly, if we turn the car off, turn it back on and drive down the hill instead it is fine and will be fine for the rest of the day driving around normally, it's just when under a heavy workload like towing the caravan or driving up a mountain for 30 or so minutes that it causes the problem.
I've had the cam and crank sensors replaced as I know they're common faults with the X-trails, also had the o2 sensor replaced, the transmission fluid replaced and obviously all servicing done and nothing seems to fix this issue. If I just use it as a normal car and never go up to the ski fields or never tow the caravan on big steep long hill runs then it's always fine and works flawlessly. The mechanic tested the radiator fluid and said it seemed to be a normal temperature after a long drive.
Prior to this we drove up these same mountains for 10 years without an issue, so it's a new problem in the past 12 months.
Any help appreciated, sorry for the long winded post, just wanted to give a good understanding of the problem and my local machanic has no idea what to do.
Thanks in advance.
|
2/Jul/2022, 6:17 pm
|
|
Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6355
|
|
|
|
Re: X-trail T30 2.0 2001 tranmission gear change problem when under heavy load
It may be a blocked filter in the transmission or a sticking shift valve.
If the fluid has been replaced make sure it is of the correct type.
Maybe flush the transmission fluid by having it replaced again.
It sounds like the shift solenoids work fine when there is not much pressure but when under heavy load or at high revs in 1st gear the solenoid is not operating correctly.
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
|
2/Jul/2022, 7:20 pm
|
|
Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6355
|
|
|
|
Re: X-trail T30 2.0 2001 tranmission gear change problem when under heavy load
I think they can do the filter and valve solenoids with the transmission in the Xtrail, just raised up and remove the oil pan underneath, but your mechanic should be able to tell you.
If you can replicate the problem somehow and take it to him to use a diagnostic tool on it they might be able to see exactly what the problem is.
Does it do the same thing if you drive around with the shift lever in 1st for a while and then try to shift into 2nd but it stays in 1st ?
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
|
3/Jul/2022, 8:29 am
|
|
Revhead Kev
Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6355
|
|
|
|
Re: X-trail T30 2.0 2001 tranmission gear change problem when under heavy load
Before he replaces the filter I would suggest you drive for a week, then have him replace the oil again, then drive for another week before he replaces the filter and some more new oil.
This should flush out as much as the old oil as you can before possibly having the new filter affected by dirty oil.
--- Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
|
4/Jul/2022, 10:00 pm
|
|
phruntal
X-TRAIL NEWBIE
Date Registered: 07-2022
TOTAL POSTS: 25
|
|
|
|
Re: X-trail T30 2.0 2001 tranmission gear change problem when under heavy load
Well, thanks Kev for your help, problem is resolved.
In another thread I posted about my cars starting problem being resolved by a MAF sensor replacement, it had trouble starting if it was turned off at a petrol station and then started again straight away, it only liked cold starts, any start not long after being turned off caused it to stall not long after starting, I had to pump the accelerator to keep it running.
Well, the MAF sensor also fixed this gearbox problem, today I drove up the same mountain with no problems at all, it takes about 35 minutes to drive up and about 20 minutes to drive down, so I drove up and down 3 times in a row fine. Prior to the MAF replacement the previous 4 attempts on different days it would not get past 3/4 of the way up without dropping back to first and getting stuck.
Very happy, quick cheap easy fix in the end.
My mechanic hasn't had time to change my gearbox oil or replace the filter, he's got the filter sitting there at his workshop to do it he just hasn't had a chance, very busy, rural mechanic so the only one around for an hour or so drive.
Thanks for all the suggestions, it's appreciated.
Last edited by phruntal, 16/Aug/2022, 7:16 pm
|
16/Aug/2022, 5:49 pm
|
|
Page: 1 2 3
|