Home > Technical (L322) > L322 2004 V8 - 157,000 original box Trans failsafe from cold |
|
|
RRPhil Member Since: 22 Aug 2011 Location: Blackburn, Lancashire Posts: 910 |
Issues when the fluid is hot, which disappear once it’s cooled down, often point to an internal hydraulic leak i.e. the leakage gets worse as the fluid viscosity drops, to a point where the pump can no longer provide sufficient flow to overcome the leakage and the pressure drops, resulting in clutch slip and the failsafe error.
|
||
8th Aug 2019 6:17pm |
|
Lenb Member Since: 03 Sep 2014 Location: Leicester Posts: 132 |
Thanks Phil,
|
||
8th Aug 2019 6:28pm |
|
RRPhil Member Since: 22 Aug 2011 Location: Blackburn, Lancashire Posts: 910 |
I think it will, though I don’t know if it uses the Land Rover P-code system (e.g. P0732=2nd gear ratio fault, etc.). If not, hopefully it provides a description of the fault.
|
||
9th Aug 2019 12:11am |
|
Lenb Member Since: 03 Sep 2014 Location: Leicester Posts: 132 |
Interestingly this morning I drove to an appointment and normally I would expect trans failsafe as soon as I pulled off as always seems to happen when engine etc cold - it didn’t happen! Same drive back home still no problem - 8 miles each time. I took live readings so have a massive pdf to look at, recorded solenoids pressure and shift, plus system pressure, engine speed.
|
||
9th Aug 2019 11:30am |
|
Rosco Member Since: 20 Jan 2012 Location: Beyond the wall. Posts: 2543 |
PM sent lenb |
||
9th Aug 2019 1:56pm |
|
Lenb Member Since: 03 Sep 2014 Location: Leicester Posts: 132 |
After 2 days of no problem it all of a sudden does it again, the fault codes are:
|
||
10th Aug 2019 10:08am |
|
RRPhil Member Since: 22 Aug 2011 Location: Blackburn, Lancashire Posts: 910 |
Unfortunately, the IIDTool codes (0x8D, 0x59, 0x20) mean nothing to me – I wish they’d translate them into the Land Rover P-codes.
|
||
10th Aug 2019 11:54am |
|
Lenb Member Since: 03 Sep 2014 Location: Leicester Posts: 132 |
Thanks Phil,
|
||
10th Aug 2019 12:01pm |
|
Lenb Member Since: 03 Sep 2014 Location: Leicester Posts: 132 |
Well it went straight in to Trans failsafe so I was able to check, Low box and high box was still selectable. Switched off and restarted and been ok since, stopped at my destination for 90 mins, just popped back home and all ok.
|
||
10th Aug 2019 2:03pm |
|
Lenb Member Since: 03 Sep 2014 Location: Leicester Posts: 132 |
I took some live readings with my iid tool and this time ‘failsafe’ happened again. One of the readings showed transmission system pressure which dropped each time I selected drive or reverse. On pulling away and as it tried to move to 2nd gear the ‘Trans failsafe’ happened and the pressure dropped to zero - where it stayed until I was able to pull over and restart.
|
||
12th Aug 2019 1:17pm |
|
Lenb Member Since: 03 Sep 2014 Location: Leicester Posts: 132 |
Can I only get a speed sensor from USA?
|
||
14th Aug 2019 1:25pm |
|
RRPhil Member Since: 22 Aug 2011 Location: Blackburn, Lancashire Posts: 910 |
As I previously mentioned, it’s extremely unlikely to be a fault with the sensor itself. I have a box full of the things, they never fail. If you want to convince yourself, just swap the front and rear sensors (they’re identical) and you’ll see that the error still relates to the output speed sensor. In the unlikely event that it is a sensor fault you can buy new ones from Land Rover, BMW and Jaguar or from a ZF spares supplier like JPAT or Sussex Autoparts. Alternatively, I can supply you with a used one from my collection
|
||||
14th Aug 2019 2:27pm |
|
Lenb Member Since: 03 Sep 2014 Location: Leicester Posts: 132 |
|
||
14th Aug 2019 3:07pm |
|
RRPhil Member Since: 22 Aug 2011 Location: Blackburn, Lancashire Posts: 910 |
I usually keep a re-manufactured ZF 5HP24 032 model (Range Rover) in stock for immediate delivery : https://www.fullfatrr.com/forum/topic51883.html
|
||||||||
14th Aug 2019 9:12pm |
|
|
All times are GMT + 1 Hour |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis