Jatco automatic gearbox - quick question

[simon8805]

Originally Posted by wuzerk

I did suggest some way back that you drained the box and then used the
level plug in the normal way which should mean that the level is correct.
Regarding the loss of 3rd I agree with your theory that it fails when the car is on the ground because the load is much greater than when it is jacked up.
The problems when you engage 'sport' or 'winter' is another first! When you engage 'winter' the car will not engage 1st gear to avoid wheel spin so perhaps it does need more torque to pull away in 2nd?
When I changed my auto fluid I drained 3.9ltrs out which seemed normal according to advice on here but now I can only surmise that somebody had added extra for luck to my car before I bought it. I certainly didn't get a huge amount out when I did the level check. I will find out when I change the fluid next time.

All hint of drive forward or reverse is lost when SP is selected, not a hint of drive, the gearbox goes silent....

You did suggest I drained according to the level, others suggested I did not...

Raining cats and dogs just now, but despite the potential fail of the level plug, I have nothing to loose by draining using the level plug, I am going to capture what comes out and retain just in case.

I have found a dealer and am making my initial approach tomorrow after work.

I am scared!!!!!

Originally Posted by wuzerk

In case you are in a position to test these items they are all applicable to the 75s. This connector is on the near-side front wing in front of the battery.

Thanks for this, my mate is going to attempt some dark and mysterious kungfu on the electrics so this I am sure will be of great help, I am right in thinking that soleniods are changed through the side pan, I dont think thats beyond me....a small glimmer of light.

the rover dealer in germany has an x part inside his business, so maybe parts will not be such an issue, theres always international bay as an option...


I am still relaxed but the golden virginia (no spello here) has taken a hammering!!

[wuzerk]

I do know that the solonoids can be changed without removing the box, someone will confirm that shortly I am sure.

[simon8805]

Originally Posted by simon8805

All hint of drive forward or reverse is lost when SP is selected, not a hint of drive, the gearbox goes silent....

You did suggest I drained according to the level, others suggested I did not...

Raining cats and dogs just now, but despite the potential fail of the level plug, I have nothing to loose by draining using the level plug, I am going to capture what comes out and retain just in case.

I have found a dealer and am making my initial approach tomorrow after work.

I am scared!!!!!

So a little progress but not much....

Friend looked at car just now, he also thought I should concentrate on the ATF first before doing anything else, so around the block a few times, stuck in gear 2, up on ramps and undid the level plg, with engine running, out pulsed 1.25 liters of ATF, still nice and new looking, ran through the gears then replugged the level, off ramps, round the block again, no real differance I could tell until I ground to a holt and the LCD gear selector came up "EP", saturday I am taking to the MG rover specialist up the road, calling out the ADAC (German AA) saturday morning for a lift to the garage.

"EP" will check that out later, in the mean time, no more tinkering.

[simon8805]

Originally Posted by SD1too

It won't be. Automatic transmissions are more resilient than you might think. Your garage will probably tell you that you need a new gearbox though.


That's a good sign.

Transmission faults are best dealt with by specialists.

In financial terms maybe, but not technically speaking.

When you get the garage's report, don't make any quick decisions. Gather views and experience from this forum and think about it for a bit.

Simon.

Thats my plan, shes undoing a full diagnostic on monday, trying not to think about it too much, I am kindof wishing the call to be along the lines of "found the problem, its was x and its a real easy fix" reality may well be a bit of a shock.

Got a quote yesterday at 4000 to 4500 euros to change the gearbox, I actually laughed and then put the phone down before I swore (alot)

Originally Posted by sworks

post 20 2.5 lts is about right

Rover 75s have been around now for over a decade yet the forum leads have quoted 2.5 upto 4.5 liters for the change.

Whilst I am not suggesting any of the quotes are wrong, clearly it does leave a newbie abit confused....

I guess the all important thing to do is trust the level plug and take nothing for granted.

AND

IF in doubt go to a pro!

Originally Posted by SD1too

So there you have it: an electrical fault. What a surprise!

But what does it mean? A faulty solenoid perhaps?

Simon.

I really really hope it is that simple!

Originally Posted by SD1too

Thank you Ed, most kind.

Originally Posted by SD1too

Simon.

Does that make your Rover 75 one of the oldest in the world?

Bubble wrap it........

Originally Posted by craig8661

One question you checked the oil level with the engine running didn't you I changed the solenoids in my tourer and changed oil with no problems. Also you say you used std I got my solenoids out of a box that had the wrong oil in and had lost drive the o was thicker than the proper stuff

Yes I checked the oil level with the engine running as per standard.

I am waiting out for the diagnosis, me really hopes its a solenoid

pray for me............

Originally Posted by ProfDave

Only just landed on this sad tale; was it working OK before the change of ATF. You may have said that! If it was then obviously it should be something related to to the change!? I assume all the plenums on the passenger side are clear and any sunroof drains as I think the brain for the gearbox is next to the fuse box behind the glove box?

Thank you for your input, minor issues before change but nothing like that I have encountered since.

Also major storms have dumped on Germany the rain that missed the UK, I guess it is possable that the plenums have been overwhelmed, I do clear them every month.

Shes away at the MR Rover diagnostic center up the road just now, so its a waiting game just now

[milosnikolic]

patiently waiting to your update

[wuzerk]

Due to the confusion created by some of us believing that an auto fluid change will involve approx 4 litres and others stating that it should only take 2.5 litres I have e mailed a specialist auto parts company for any info they have. I would also point out that the Haynes Manual states that the capacity is 8 litres and a fluid change is 4 litres ( they have been known to make the odd mistake)! if I get an answer I will pass it on.

[Greeners]

RAVE states 3.5 - 4 litres, start the engine, select each gear, hold it for 3 seconds in each gear, then with the engine running remove 5mm Allen socket to bleed excess fluid off.

If no fluid loss, add more until it starts to come out the level plug, refit plug and repeat the first process

[wuzerk]

Originally Posted by Greeners

RAVE states 3.5 - 4 litres, start the engine, select each gear, hold it for 3 seconds in each gear, then with the engine running remove 5mm Allen socket to bleed excess fluid off.

If no fluid loss, add more until it starts to come out the level plug, refit plug and repeat the first process

DAVID, yes I know but during the long ongoing discussion on SIMONS auto box problems it has been stated by SWORKS, who is a moderator, that you should only see about 2.5 litres when you drain, this raises the question as to did the design and/or
the capacities change during the life of the 75s. My box drains approx 4 litres but do they all?

[Greeners]

I doubt the box has changed in design in 5 years......

[sworks]

Not a moderator but I did Three different cars in the space of a month. found that they were all similar amounts from a 1.8 turbo, V6 and my own diesel. I have a photo on my phone as a reference as I used the same container to drain into. As David has said, I think the box was unchanged but not 100% - There is of course a chance that these Three cars were underfilled at some point?