Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: clint omega on 25 November 2009, 15:27:31
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Hi all i have a problem with my auto box
When auto box is cold i have some drive but when it gets warmer i end up with no drive
I have checked the atf level which is fine but is a very brown colour.
autobox was changed for a recon about 18 months ago and has done about 24000 miles since omega is a 2.5 cdx /2000year
regards
Clint
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do you get any drive if you manually shift to 1,2,3 ?
I'd take the selector switch and give that a good clean first. When you checked the ATF, was it to the level of the drain plug, on a level surface with the engine running?
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no drive at all when selecting different gears and when checking the atf it was warm with engine running and on level ground :-[
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Have you had any warning lights or messages on the display. Might be worth checking for any codes try paperclipping or pedal trick. Not sure which one for your car but there will be a link in the maintanence guides. :y
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no warning messages nothing i will have a better look at it the weekend if it stops raining but any more advice would be grateful
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AUTOMATIC TRANSMISSION
General Troubleshooting
http://www.megafileupload.com/en/file/159768/44generalt-pdf.html
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I'm new here, and I;m a new owner of omega z22xe. I had a same problem with my automatic gear box, the atf color is brown because it's mixed with antifreeze or water from the engine cooler (radiator). I had a same problem with my omega and i had a new cooler but i'm suspisious that it wasn't the corect one because usualy omega b is under 1999 and my omega is 2003 (some people call it Omega c). i hope that somebody hwo understands let me know what type of cooler is from my omega 2.2 16 petrol 2003.
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I reckon its the TC myself but it won't hurt to drain the fluid and replace it.
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Yes, as said inan earlier post,drain the aft and refill.
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I've done that, i've drained tha ATF and put a new. but my servicer is saying that the you have to change the cooler because it will mix it aging with antifreez.
thnx for rply.
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Not sure when it changed but the autobox oil cooler was originally in one end tank of the radiator. To change it you need a complete new radiator. A new radiator costs about £200 from VX.
Later ones are just a length of pipe that wiggles around in front of the radiator so there isn't a risk of cross contamination.
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I understand but my servicer told me that engins that runs on petrol doesn't have radiator inside the gearbox. the only cool the ATF in main engine cooler (radiator). only diesel vehicles has the radiator inside the gearbox. So I have to change the main engine radiator.
(http://)
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I understand but my servicer told me that engins that runs on petrol doesn't have radiator inside the gearbox. the only cool the ATF in main engine cooler (radiator). only diesel vehicles has the radiator inside the gearbox. So I have to change the main engine radiator.
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Yes, thats what I meant.
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I think Diesels have exactly the same.
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I understand but my servicer told me that engins that runs on petrol doesn't have radiator inside the gearbox. the only cool the ATF in main engine cooler (radiator). only diesel vehicles has the radiator inside the gearbox. So I have to change the main engine radiator.
(http://)
For the Omega, there are no differences in the gearbox, diesel or petrol. Box is the same inside. ATF is always cooled in the rad
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I understand but my servicer told me that engins that runs on petrol doesn't have radiator inside the gearbox. the only cool the ATF in main engine cooler (radiator). only diesel vehicles has the radiator inside the gearbox. So I have to change the main engine radiator.
(http://)
For the Omega, there are no differences in the gearbox, diesel or petrol. Box is the same inside. ATF is always cooled in the rad
Later V6s have a separate radiator for the ATF just in front of the main rad. You can see the 2 ATF pipes crossing over the top of the coolant rad. on such models.
I would syringe some ATF out into a small glass jar and inspect it. If there is debris in it, it means a friction surface in the box has broken down, so the box is probably shot. You can also check for signs of liquid contamination. I would expect it to look milky if it has water in it. If it's just plain brown it's friction material from the box. Try dipping a hot nail into it and see if it sizzles (water boiling off).
I'm assuming that the ATF was replaced when the gearbox was changed, so if it's got badly contaminated in 24k miles it doesn't bode well for the condition of the gearbox, I'm afraid. :-/
Kevin
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I think when the g/box was changed they used the old g/box oil cutting costs it was done under warrenty
The funny thing is just prior to the gearbox playing up the missus drove it through some flood water and drowned the poor thing had to remove plugs and air intack etc to get the water out off it ??? i wonder if it is thaty is the atf fluid somehow has got contaminated with water ??
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Has the car got a sump guard If not when your missus drove it through the water it may have got into the gear selector switch. this happened to mine and i had to dismantle the swich and clean it out and dry off the plug and socket. there is a little pipe wich goes from the top of the swich up the cable inside the metal heat deflector where water can get into the switch rendering it pretty useless untill cleaned out. Worth a try.
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No sump gaurd i will go right through the whole lot this weekend so i will let everyone know the out come
the more suggestions the better
thanks all
regards Clint
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I think when the g/box was changed they used the old g/box oil cutting costs it was done under warrenty
The funny thing is just prior to the gearbox playing up the missus drove it through some flood water and drowned the poor thing had to remove plugs and air intack etc to get the water out off it ??? i wonder if it is thaty is the atf fluid somehow has got contaminated with water ??
It's possible it's got into the selector switch - not unusual but it doesn't explain why it doesn't drive manually.
A few members have also had gearbox failures after driving through flood water before, though. I wonder if the breather pipe was left off the 'box when it was replaced, allowing water in? :-/
Kevin
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A few members have also had gearbox failures after driving through flood water before, though. I wonder if the breather pipe was left off the 'box when it was replaced, allowing water in? :-/
Kevin
On Land Rovers that are taken through water deep enough to cover the axles it is common for the axle breathers to be extended to somewhere above the water level. When the hot axle/differential gets immersed in cold water the air (and to a lesser extent oil) in the unit contracts and pulls in water otherwise. I imagine the gearbox could behave in a similar manner if the breather pipe was split or missing.