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jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re: 4WD Problems


Welcome back Dave.

I can feel a detailed trip report coming. emoticon

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26/Nov/2005, 2:15 pm Link to this post Send Private Message MSN Blog
 
basshead Profile
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X-TRAIL HOLIC
 


Date Registered: 02-2004
Location: Panania, Sydney
TOTAL POSTS: 2852
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Re: 4WD Problems


Brett, just a query regarding your tyre pressures - would different tyre (brands & models) require slightly different pressures? An A/T tyre is going to be structurally different to the standard tyres (Toyos if you've got 15inch wheels, or I think Bridgestones if you've got 16inch wheels).


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Rich. X-013(c)
'04 S2 ST Auto. Nudge_roofracks_tow_tints_Lightforce_GME_YokoGeoA/T-S_TBS_bashplate_50mm-spacer-lift
Click here to see >300MB of photos and videos All For His Glory.
30/Nov/2005, 8:02 pm Link to this post Send Email PM   Send Private Message MSN Yahoo Blog
 
David M Profile
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X-TRAIL FANATIC
 


Date Registered: 02-2005
Location: Taylor's Hill (Melbourne)
TOTAL POSTS: 466
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Re: 4WD Problems


Probably wrong thread to follow this question up - sorry mods. Tyre pressures have been interesting me - I guess it is to do with the volume of air required to support the weight of the vehicle (but then my physics is a bit rusty). The necessary pressure would vary with the weight of the vehicle and the load. Someone correct me, but it seems to me that 16" wheels might require slightly higher pressures because the tyre casing has a smaller volume (larger inner diameter, same outside diameter). However, rolling over sand and "bagging" would also relate to the stiffness of the side walls. I don't think there's simple answer to this one. I reckoned 25 (hot)was too high on my recent sand excursion and went to 22 (hot). Maybe I should have gone lower.
Just my 2c worth.
David M

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David M (X095)

ST Auto (series 1) 180,000 kms
Nissan nudge, fog lights, towbar, floor mats, K&N filter, Cooper CS4s, electric trailer brake controller, GME TX3220
1/Dec/2005, 11:08 am Link to this post Send Email PM   Send Private Message
 
BRETT72 Profile
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X-TRAIL HOLIC
 


Date Registered: 10-2005
Location: Orange. NSW.
TOTAL POSTS: 1999
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Re: 4WD Problems


Yes it is true, that there are numerous varying factors when considering what pressures to drop down to, in the sand.
BFG A/T's will bag better then Dunlop Grandtrek, but then again, due to the BFG's more aggresive pattern, they will tend to bite into the sand and not float over as easily.
There is an excellent article in the current 4wd Monthly mag (Jan 2006) which tests the leading 14 all terrain tyres.
As for the pressures, I have dropped mine between 16 and 20psi, depending on time of day, softness of the sand and weight in the car.

Now that it is getting hotter, you will find the sand is softer and may require a lower pressure in the tyres. But...by going too low, you run the risk of rolling the tyre of the rim.
I guess it is the case of learning from mistakes and always carrying a good quality air compressor and long handles shovel.

See you out on the sand one day.

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BRETT72 - X235

5/Dec/2005, 2:27 pm Link to this post Send Email PM   Send Private Message MSN
 
stewie63 Profile
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Date Registered: 12-2005
TOTAL POSTS: 1
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posticon Re: 4WD Problems


Hi all,

I went beach bashing on the Frazer coast in September in a new X-Trail and had the over temperature light start flashing. It does drop the rear drive train out as the wheels stop driving and you see your front wheels disappear into the sand really quickly. The x-trail was bogged around three times with this error. I learnt to let the vehicle roll to a halt and let it cool off.

To cut a long story short, after getting off the beach, I took the X-Trail to the Gympie Nissan dealer.

After many hours of fault finding, numerous phone calls to Melbourne, the head tech at Nissan put the problem down to having sand between the cone wheel on the rear axle and the ABS sensor.

Once this area was washed off with water, the vehicle once again performed normally. It is really easy to get a squirt bottle with a little water in it to clean these sensors or just find a creek and drive up it. (Much more fun!!)

For the remainder of the trip there were no further problems with the system and we were on Frazer Island for five days. I did get bogged again on the trip however the 4WD system was not the cause, belly dragging was the main cause, closely followed by the driver error….. it was a great learning experience.

I believe the problem to be a design fault with the front ABS sensors behind the axle and the rear ABS sensors in front where they are exposed.

I hope this helps......I also though that I had received a dud x-trail, however this is not the case at all.


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Cheers,

Ian.
2005 TI Titanium Silver, manual
20/Dec/2005, 10:00 pm Link to this post Send Email PM   Send Private Message
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
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Re: 4WD Problems


Hi stewie and welcome to the forum.

Thanks for your valuable input which sure does explain a lot about this mysterious phenomenon some xtrailers are having.

I hope other dealers can read this, so they can explain the same to their customers when asked about this problem.

Enjoy your stay on the forum.

Please feel free to visit the Introductions section of the forum, and tell us more about yourself when you have time: Introductions

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20/Dec/2005, 10:17 pm Link to this post Send Private Message MSN Blog
 
canberraxtrail Profile
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X-TRAIL ENTHUSIAST
 


Date Registered: 01-2005
Location: Canberra, ACT
TOTAL POSTS: 273
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Re: 4WD Problems


Can someone take a photo and/or explain where these sensors actually are and what they look like?

This is useful info for anyone who goes sand bashing and encounters this problem. If it's as simple as sand getting into/blocking sensors then it eases my mind a bit - at least its not as major as first expected (overheating)

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Matt, Canberra, X-074
2002 ST
Twilight, auto, nudge bar, tint

Car Pics: HERE
20/Dec/2005, 10:45 pm Link to this post Send Email PM   Send Private Message
 


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