Pajero 4WD Club of Victoria Public Forum Pajero 4WD Club of Victoria Public Forum

Go Back   Pajero 4WD Club of Victoria Public Forum > Vehicles > Generation 4-1 Pajero

Generation 4-1 Pajero NS Model 2006 - 2009

Reply
 
Thread Tools Display Modes
  #1  
Old 12-01-17
Fozza's Avatar
Fozza Fozza is offline
Member
 
Join Date: Jan 2016
Location: Brisbane
Posts: 54
Default gearbox slipping under load

got the bad news that i might be in for a rebuild of my auto on my NS DiD (200,000+ kms on the clock).

when i started towing my van i wasn't aware that i should be towing in 4th and was towing in D. going up a slight incline the paj went into limp mode and N started flashing. turned the car off and then back on to finish the trip. i cleared the codes and couldn't really get a straight answer as to what the issue was.... fast forward a few months, been towing the van in 4th on the highway and then when i come into town (60kph) i just switch into D. but going down a hill and then back up the paj changed to 5th and then went to limp mode again.

i've been to see quite a few mechanics and spoken to a few auto trans guys and all signs are pointing to an overhaul of the gear box which is not going to be a cheap exercise... will be going to see a recommended auto trans specialist as soon as they're back in on Monday... will get his opinion but am fairly confident it'll be the same. the codes coming up are the incorrect ratio for gear 5 and the last time it came up with incorrect ratio for gear 4 as well. I think the codes were P0735 and P0734. I had the tran fluid flushed as part of a full service just before the last incident as well so confident it's not bad fluid.

i'm taking off on a 6 month trip with the young family in a couple of months so need to have the car in top notch as can't risk getting into trouble in the outback. thinking about just going all out and spending the extra money on the heavy duty valve upgrade from wholesale automatics...

anyone had any similar issues and any recommendations of what to do before going for a full rebuild? thanks in advance
__________________
NS Pajero DiD with lift, 3" exhaust and tune, safari snorkel, bushskinz bash plates, dual battery, etc
Reply With Quote
  #2  
Old 12-01-17
4wd26's Avatar
4wd26 4wd26 is offline
Valued Member
 
Join Date: Jun 2007
Location: Bayside, Brisbane & Stradie
Posts: 905
Default

are you keeping an eye on the auto temps whilst towing?
if so what temps are you generally sitting at
__________________
ML triton with some accessories
National E Trek Libary
Getting Out There
Reply With Quote
  #3  
Old 12-01-17
Fozza's Avatar
Fozza Fozza is offline
Member
 
Join Date: Jan 2016
Location: Brisbane
Posts: 54
Default

Quote:
Originally Posted by 4wd26 View Post
are you keeping an eye on the auto temps whilst towing?
if so what temps are you generally sitting at
No. I don'thave a temp gauge installed and my obd app doesn't seem to have that functiom either. I'm using the torque app
__________________
NS Pajero DiD with lift, 3" exhaust and tune, safari snorkel, bushskinz bash plates, dual battery, etc

Last edited by Fozza; 12-01-17 at 08:35 PM.
Reply With Quote
  #4  
Old 12-01-17
KrAsh's Avatar
KrAsh KrAsh is online now
Junior Member
 
Join Date: Apr 2014
Location: SE Melbourne
Posts: 40
Default

Look at a trans cooler, inline or ditch the factory one in the rad altogether.

How was the oil when changed, was it discoloured, smelt burnt? Generally autos die from kickdowns and labouring, but there are usually telltales to what's happened. Towing in 4th isn't gospel, just be wary of the terrain you are in.

The limp mode definite gearbox related, not a VGT issue? I'd find a second hand box first before going the rebuild, they aren't known to be a weak box. We towed a tandem trailer full of karts and race gear no issues in D.
Reply With Quote
  #5  
Old 12-01-17
old Jack's Avatar
old Jack old Jack is offline
Valued Member
 
Join Date: Jun 2011
Location: Adelaide
Posts: 4,823
Default

Quote:
Originally Posted by Fozza View Post
but going down a hill and then back up the paj changed to 5th and then went to limp mode again.
The Auto is electronically controlled so sensors send signals to the AT ECU and the ECU controls the solenoids that operate the hydraulic valves. How do you know that it wasn't an electrical fault that caused the limp mode rather than a actual condition within the transmission. I cannot see why the trans would go into limp mode when going downhill as the load is removed from the trans.

OJ.
__________________
2011 PB Base White Auto, Smartbar, Cooper STMaxx LT245/75/16, HR TB, 3 x Bushskinz, +40mm std front Lovells, +50mm rear EHDVR Lovells, Bilsteins, Peddars 5899 bump stops, Windcheater rack, GME UHF, Custom alloy drawer system inc. 30lt Engel & 2 x 30 AH LiFePo batteries + elec controls, Tailgate hi-lift/long struts, Phillips +100 LB & +100 HB, Lightforce 20" single row driving beam LED lightbar, Scanguage II, torque convertor lockup indicator.
Reply With Quote
  #6  
Old 12-01-17
DaveE66's Avatar
DaveE66 DaveE66 is offline
Valued Member
 
Join Date: Oct 2010
Location: Mannum SA
Posts: 562
Default

Had a similar issue with my ns when I had the first version of the Tc lock up switch. Mine would go into limp mode as soon as it dropped into 5th gear.
Turned out to be the 5th gear solenoid died.
Mechanic replaced with a new one and I have not had an issue since that was over 50000 kms ago.
The tc lock up switch caused the issue with mine.
I would get that checked first.
Can be replaced without removing transmission. Mechanic removed the pan and was able to access from there.

Dave
__________________
NS DiD VRX, ARB Steel Bar, Roo Lites, Safari Snorkel, GME UHF, 2" Lift, Poly Airs, Dual Batteries, Cooper Tyres, Ecu remap, 3inch exhaust, Imax 12000lb Winch,
Reply With Quote
  #7  
Old 13-01-17
Fozza's Avatar
Fozza Fozza is offline
Member
 
Join Date: Jan 2016
Location: Brisbane
Posts: 54
Default

Quote:
Originally Posted by old Jack View Post
The Auto is electronically controlled so sensors send signals to the AT ECU and the ECU controls the solenoids that operate the hydraulic valves. How do you know that it wasn't an electrical fault that caused the limp mode rather than a actual condition within the transmission. I cannot see why the trans would go into limp mode when going downhill as the load is removed from the trans.

OJ.
It only does it on incline. Has done it a few times and always on incline under load. Can see how my post could be misread. Meant to say I was towing in D because was in 60k zone it changed to 5th going down a hill and then slipped and went into limp mode going up a hill just after coming down
__________________
NS Pajero DiD with lift, 3" exhaust and tune, safari snorkel, bushskinz bash plates, dual battery, etc
Reply With Quote
  #8  
Old 13-01-17
Fozza's Avatar
Fozza Fozza is offline
Member
 
Join Date: Jan 2016
Location: Brisbane
Posts: 54
Default

Quote:
Originally Posted by DaveE66 View Post
Had a similar issue with my ns when I had the first version of the Tc lock up switch. Mine would go into limp mode as soon as it dropped into 5th gear.
Turned out to be the 5th gear solenoid died.
Mechanic replaced with a new one and I have not had an issue since that was over 50000 kms ago.
The tc lock up switch caused the issue with mine.
I would get that checked first.
Can be replaced without removing transmission. Mechanic removed the pan and was able to access from there.

Dave
Cheers. Will definitely get that looked at first
__________________
NS Pajero DiD with lift, 3" exhaust and tune, safari snorkel, bushskinz bash plates, dual battery, etc
Reply With Quote
  #9  
Old 13-01-17
Dicko1's Avatar
Dicko1 Dicko1 is offline
Valued Member
 
Join Date: Dec 2014
Location: here
Posts: 3,926
Default

I would fit an Ultragauge to get an accurate auto temp readout,. It could be the auto temp putting you into limp mode.. I,ve seen my auto get to 110 when going up a hill in D. i4th in sports mode greatly reduces temps. Great unit for monitoring your temps whilst towing. Most people who think they are going along sweetly in an auto towing in D done have an auto temp display and would be very surprised at the high temps of the transmission.
__________________
NW owner.
Reply With Quote
  #10  
Old 13-01-17
Fozza's Avatar
Fozza Fozza is offline
Member
 
Join Date: Jan 2016
Location: Brisbane
Posts: 54
Default

Quote:
Originally Posted by KrAsh View Post
Look at a trans cooler, inline or ditch the factory one in the rad altogether.

How was the oil when changed, was it discoloured, smelt burnt? Generally autos die from kickdowns and labouring, but there are usually telltales to what's happened. Towing in 4th isn't gospel, just be wary of the terrain you are in.

The limp mode definite gearbox related, not a VGT issue? I'd find a second hand box first before going the rebuild, they aren't known to be a weak box. We towed a tandem trailer full of karts and race gear no issues in D.
Mechanic said oil was ok. gettinga 2nd hand one was my first thought as well but the thought of picking one up that had some issues scares me a bit. Probably worth looking into again. Cheers
__________________
NS Pajero DiD with lift, 3" exhaust and tune, safari snorkel, bushskinz bash plates, dual battery, etc
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
clutch slipping Mattpaj Generation 2 Pajero 5 31-07-16 10:33 PM
Load bang from Gearbox then all dash lights came on shoza Generation 3 Pajero 21 05-03-14 08:41 PM
2000 NM 2.8td - clutch slipping & load capacity spinjim Generation 3 Pajero 0 13-01-11 12:46 PM
knocking or rattling from engine/gearbox in high gear under load GiveItAGoGavo Mechanical 1 02-10-09 09:28 AM
1st slipping knibbZ Generation 3 Pajero 1 04-04-09 09:40 PM


All times are GMT +10. The time now is 04:42 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.