Urgent help please: automatic gearbox

NikTheGeek · 22nd November 2011, 16:31

Car has been fine, no problems. Drove in to work this morning and it was fine, come to drive home tonight and the auto box is slipping. As soon as I accelerate the revs go right up - its not engaging gear. If I drive slowly, it does change up and down, but its jerky. Then EP came on the dash and it was stuck in one gear. Pulled over turned it off, back on, EP goes out, but it still slips with jerky changes.

Had the auto oil changed at at Rover dealer about 6 months ago, but its been fine.

ANY ideas???

tnx

Nick

James.uk · 22nd November 2011, 16:53

Check the oil level, the filler may have worked loose, or they may have left the washer off...

...

David3807 · 22nd November 2011, 17:07

I believe there is a auto fluid cooler (there is on a V6). The pipes from the auto box to the cooler have been known to come adrift loosing fluid and giving the symptoms you describe.

wuzerk · 22nd November 2011, 17:46

Remove the undertray to see if it is soaked in auto fluid. If you do check the fluid level the plug is ON THE BOTTOM. Do not undo anything on the sides of the box. There are known problems with the various solonoid/valves, some of which can be replaced without removing the box. There is also a known problem with a connection which comes adrift on the multi plug near the battery.

mamasboy · 22nd November 2011, 18:25

I had big probs with EP error, turned out to be a badly corroded glow plug relay which is housed in the plenum chamber beside the ecu (little white box inside the ecu enclosure).

NikTheGeek · 22nd November 2011, 18:35

Check the fluid cooler, there is rust on its mountings, but all pipes are ok.

Taken undertray off and no oil. Gearbox is as clean as a whistle.

Checked fault codes - none stored.

Checked auto box level - over full. Removed fill/level plug with engine running and about a pint and a half came out.

Left the battery disconnected for half an hour to reset everything (after checking there were no faults stored).

Could an over-full box cause that sort of problem????

Checked passenger side plenums (top and under) and both clean, no water near the ECU.

No idea where the drivers side lower plenum is. The top one is clear.

I do have a misting problem at the moment - over the last couple of weeks. As soon as I start the car, the windows mist up, but ecu chamber is dry and so is the pollen filter.

I'll check passenger well inside where the auto ecu is (if I can find it)

Nick

Singvogel · 22nd November 2011, 18:45

Yes - too much ATF in the box is just as bad as too little.

You can tell the state of the ATF by the smell of it.

If it smells of toasted bread - then it's well over due for changing.

As you cant get all of the old ATF out, you may need to change it again after a few days.

wuzerk · 22nd November 2011, 18:48

A pint and a half overfull seems extremely excessive if it was filled by a specialist? You say the 'fill/level' plug which is not correct, they are two separate items so I hope you used the correct procedure when checking the level. Overfilling could cause the fluid to bubble but it has been in there for six months. the drivers side drain pipe for the Plenum can be viewed from underneath where you can open the end to see if water comes out but do not be directly underneath it when you try. If the passenger side is clear
then there cannot be a lot of water in the drivers side.

NikTheGeek · 22nd November 2011, 19:39

Quote:

Originally Posted by wuzerk

A pint and a half overfull seems extremely excessive if it was filled by a specialist? You say the 'fill/level' plug which is not correct, they are two separate items so I hope you used the correct procedure when checking the level. Overfilling could cause the fluid to bubble but it has been in there for six months. the drivers side drain pipe for the Plenum can be viewed from underneath where you can open the end to see if water comes out but do not be directly underneath it when you try. If the passenger side is clear
then there cannot be a lot of water in the drivers side.

Its in the Haynes manual, its right on the bottom of the gearbox and is next to the selector cable. 5mm hex nut to open it. That one. And yes, on a level surface, about a pint and a half came out!

Anyway, it didn't make any difference. Just taken the car for a run. Fine for 2 mins, changing fine, then it stops changing, the revs go up to 3000rpm, the box doesn't change up and the EP warning comes on. But for the first couple of minutes it changes right through the range, changing on around 4000rpm if I plant my foot.

Oh well, done all I can. Time to limp to a garage....

Nick

mamasboy · 22nd November 2011, 19:56

have a look at the glow plug relay, not obvious without opening the plastic housing. see pic of mine

22nd November 2011, 16:31	#1
NikTheGeek Gets stuck in 2002 Range Rover P38 Join Date: Dec 2008 Location: Wigan Posts: 593 Thanks: 0 Thanked 0 Times in 0 Posts	Urgent help please: automatic gearbox Car has been fine, no problems. Drove in to work this morning and it was fine, come to drive home tonight and the auto box is slipping. As soon as I accelerate the revs go right up - its not engaging gear. If I drive slowly, it does change up and down, but its jerky. Then EP came on the dash and it was stuck in one gear. Pulled over turned it off, back on, EP goes out, but it still slips with jerky changes. Had the auto oil changed at at Rover dealer about 6 months ago, but its been fine. ANY ideas??? tnx Nick __________________ ʞǝǝƃǝɥʇʞıu@ :ɹǝʇʇıʍʇ Last edited by NikTheGeek; 23rd November 2011 at 09:21..

22nd November 2011, 17:46	#4
wuzerk Passed Away Rover 75 CDT 03 auto Conn. SE Join Date: May 2009 Location: London Posts: 2,885 Thanks: 104 Thanked 254 Times in 204 Posts	Auto box Remove the undertray to see if it is soaked in auto fluid. If you do check the fluid level the plug is ON THE BOTTOM. Do not undo anything on the sides of the box. There are known problems with the various solonoid/valves, some of which can be replaced without removing the box. There is also a known problem with a connection which comes adrift on the multi plug near the battery.

22nd November 2011, 18:25	#5
mamasboy RS South East Ford fester... blah.... Join Date: Mar 2010 Location: Hastings Posts: 2,900 Thanks: 29 Thanked 78 Times in 42 Posts	I had big probs with EP error, turned out to be a badly corroded glow plug relay which is housed in the plenum chamber beside the ecu (little white box inside the ecu enclosure). __________________ the name's Bernard but you can call me nursie......

22nd November 2011, 18:35	#6
NikTheGeek Gets stuck in 2002 Range Rover P38 Join Date: Dec 2008 Location: Wigan Posts: 593 Thanks: 0 Thanked 0 Times in 0 Posts	Check the fluid cooler, there is rust on its mountings, but all pipes are ok. Taken undertray off and no oil. Gearbox is as clean as a whistle. Checked fault codes - none stored. Checked auto box level - over full. Removed fill/level plug with engine running and about a pint and a half came out. Left the battery disconnected for half an hour to reset everything (after checking there were no faults stored). Could an over-full box cause that sort of problem???? Checked passenger side plenums (top and under) and both clean, no water near the ECU. No idea where the drivers side lower plenum is. The top one is clear. I do have a misting problem at the moment - over the last couple of weeks. As soon as I start the car, the windows mist up, but ecu chamber is dry and so is the pollen filter. I'll check passenger well inside where the auto ecu is (if I can find it) Nick __________________ ʞǝǝƃǝɥʇʞıu@ :ɹǝʇʇıʍʇ Last edited by NikTheGeek; 22nd November 2011 at 18:38..

22nd November 2011, 18:48	#8
wuzerk Passed Away Rover 75 CDT 03 auto Conn. SE Join Date: May 2009 Location: London Posts: 2,885 Thanks: 104 Thanked 254 Times in 204 Posts	Level A pint and a half overfull seems extremely excessive if it was filled by a specialist? You say the 'fill/level' plug which is not correct, they are two separate items so I hope you used the correct procedure when checking the level. Overfilling could cause the fluid to bubble but it has been in there for six months. the drivers side drain pipe for the Plenum can be viewed from underneath where you can open the end to see if water comes out but do not be directly underneath it when you try. If the passenger side is clear then there cannot be a lot of water in the drivers side.

22nd November 2011, 16:53	#2
James.uk Passed Away 2002 Pale Blue. Rover 75 CDTi Connoisseur auto. 170K miles Join Date: Dec 2008 Location: Near the M67. Posts: 14,509 Thanks: 199 Thanked 585 Times in 397 Posts	Check the oil level, the filler may have worked loose, or they may have left the washer off... ...

22nd November 2011, 17:07	#3
David3807 Posted a thing or two 2002 R75 Conn SE 2.5l Auto Tourer, 2001 R75 Conn SE 2.5 Auto Saloon Join Date: Nov 2006 Location: Gravesend Posts: 1,897 Thanks: 0 Thanked 2 Times in 2 Posts	I believe there is a auto fluid cooler (there is on a V6). The pipes from the auto box to the cooler have been known to come adrift loosing fluid and giving the symptoms you describe.

22nd November 2011, 18:45	#7
Singvogel Gets stuck in 75 CDT, 1966 2000TC P6, TD4-M47 Join Date: Oct 2011 Location: Deepest darkest Aberdeenshire Posts: 626 Thanks: 0 Thanked 3 Times in 3 Posts	Yes - too much ATF in the box is just as bad as too little. You can tell the state of the ATF by the smell of it. If it smells of toasted bread - then it's well over due for changing. As you cant get all of the old ATF out, you may need to change it again after a few days.