P

pfleming61

New Member
Hi all,

Got a strange problem with the TD5. When towing (2000kg) uphill or under extreme load the Auto box seems to get stuck in low gear (high revs) but no increase in power, despite how much the accelerator is pushed. It almost seems to be confused as to what gear to be in. Normal driving and motorways / around town fine - only problem under load.

Managed to get an error code readout (no fault lamps on dash) and the only transmission error was Error 21? - God knows what that is - cannot seem to find any reference to it on Web.

Local garage suspect it might be XYZ fault - but in reality they do not know (their words not mine :) )

Anyone seen this problem or any suggestions?

Problem seems to be getting worse:(.

Thanks

Peter
 
Hi Peter, so you're towing approx 2 tons and you're trying to go uphill and not making much progress? So you put your foot down some more and the auto gearbox drops a cog or two and the revs rise like mad?

Had you tried towing in '3' rather than 'D'? The reason why I ask is that in 'D' the TC (torque converter) won't lock-up until after 52-55mph which means under that speed the TC is working very hard, with the revs screaming away without much forward motion.

If you put the gear lever into position 3 the TC will lock-up at 48mph and will work much better on hills.

Also, bare in mind that when you put your foot down in an autobox car you are telling the gearbox to drop a gear - it's called kick-down.

Try towing in 3 before you decide something is mechanically wrong.


Dave
 
Hi Dave / Datatek - Thanks for responding.

Dave - Sadly yes, the problem presents in 3 as well as D. It was working much better - the problem has only come on in the past 3 weeks or so. Not so worried about the high revs in itself, it is the high revs without any net increase in power.

Datatek - I assume you are talking about the Gearbox oil - I did ask the garage to check that, though might be worth double checking as I am not convinced they really did much apart from the road test to verify that the problem is there. My only thought was that if there was not enough oil - a warning light would come on - even the oil temperature as it would probably be getting hotter than it should. There are no signs underneath of gearbox oil leak
 
If it was me I would get the box up to temp .move the box up and down the gears then while still running top up the oil till to overflows . Just to rule out low oil . When was the oil last changed
 
Vanmancan said:
If it was me I would get the box up to temp .move the box up and down the gears then while still running top up the oil till to overflows . Just to rule out low oil . When was the oil last changed
Click to expand...


Actually you would normally check the oil level on these autoboxes with the engine and gearbox cold.

From RAV 01:

"Replace oil:

1. Ensure that gearbox is cool. Apply handbrake and securely chock front and rear wheels.
2. Place a suitable container beneath gearbox.
3. Clean area around oil filler/level and drain plugs.
4. Remove oil drain plug, remove and discard sealing washer.
5. Allow oil to drain.
6. Fit new sealing washer to oil drain plug.
7. Fit automatic gearbox drain plug and tighten to 15 Nm (11 lbf.ft).
8. Remove oil filler/level plug, remove and discard.
9. Fill gearbox with recommended oil to bottom of oil level/filler plug hole.

10. Select 'P' (Park).
11. Ensure handbrake is applied.
12. Start engine and allow it to idle.
13. Apply footbrake.
14. Move selector lever through all gear positions, while continuing to fill the gearbox. Select 'P' (Park).
15. With engine idling, continue filling gearbox until a 2 mm bead of oil runs from oil filler/level plug hole.
16. Fit new sealing washer to automatic gearbox filler/level plug, fit plug and tighten to 30 Nm (22lbs.f t ) .
17. Stop engine.
18. Remove all traces of oil from gearbox casing."
 
Last edited:
Yes I stand corrected,you should do oil change as per rave :) but i merely meant warm as in running I was more thinking along the lines of check the level and topping up rather than oil change . That's why I said get it warm 1st and cycle through gears and then top up to work out how low the oil might be in it :)
 
Last edited:
Thanks everyone. Will go for oil and filter change (as checking back it was about 20K ago according to the records and let you know if that solves the problem.
 
Vanmancan said:
Yes I stand corrected,you should do oil change as per rave :) but i merely meant warm as in running I was more thinking along the lines of check the level and topping up rather than oil change . That's why I said get it warm 1st and cycle through gears and then top up to work out how low the oil might be in it :)
Click to expand...
You NEVER top up a warm gearbox, it must ALWAYS be done cold. Overfilling can be destructive.
 
Why did landrover not fit a dipstick like the Disco1.
Checking the oil level on the Td5 auto is c--p.
Practically need two people and torn knuckles etc.
Curiosity, has anyone looked at trying to fit a dipstick?
Practically same box as Disco 1.
Rant over.
 
Datatek said:
You NEVER top up a warm gearbox, it must ALWAYS be done cold. Overfilling can be destructive.[/

Not disagreeing but how do you then keep the box cold and stop it from warming if rave says have the car idling and top up until oil runs out ? Simply filling the box cold without it running won't pump the oil round the box there for making it hard to get the full amount of oil in it . My apologies for poor typing when I said warm I did only mean idling :)
Click to expand...
 
Vanmancan said:
Datatek said:
You NEVER top up a warm gearbox, it must ALWAYS be done cold. Overfilling can be destructive.[/

Not disagreeing but how do you then keep the box cold and stop it from warming if rave says have the car idling and top up until oil runs out ? Simply filling the box cold without it running won't pump the oil round the box there for making it hard to get the full amount of oil in it . My apologies for poor typing when I said warm I did only mean idling :)
Click to expand...
It takes a couple of minutes to fill with the engine idling, as there is no load on the torque convertor, there will be very little temperature rise in that time. I've done it a few times and I can assure you it is correct.
Click to expand...
 
janderson41 said:
Why did landrover not fit a dipstick like the Disco1.
Checking the oil level on the Td5 auto is c--p.
Practically need two people and torn knuckles etc.
Curiosity, has anyone looked at trying to fit a dipstick?
Practically same box as Disco 1.
Rant over.
Click to expand...
Same on later P38's, no dipstick, saves a few pennies I suppose.
Filling is dead easy, get one of those cheap pump up garden sprayers, take the end off the lance, fill the tank with ATF and pump up, fills the box in seconds:D
 
Datatek said:
Vanmancan said:
It takes a couple of minutes to fill with the engine idling, as there is no load on the torque convertor, there will be very little temperature rise in that time. I've done it a few times and I can assure you it is correct.
Click to expand...

Not disagreeing with you in any way as I've always done mine the same . As I said I simply should of used the word idling not warm to do the final top up and check after the oil change poor typing only behalf :)
Click to expand...
 
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