Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: SP_3.2 on 16 August 2009, 20:01:18
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What i am getting is sometime when in gear the car will rev up and go into netral and when i take my foot of the gas it goes back into gear. No message on display. I have had the Gear box oil changed last year but they did not clean the fillters they put in about 5L of new oil.. Had the levels checked last week and all is fine. Thinking it could be
1= Fillters need a clean
2= Need to clean the selector .
What do you lot think.
Thanks
Steve.
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Hello Steve, between which gears does it happen ?
regards
richard a
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Hi Richard
its at low speeds i would say 1-2nd or 2-3.
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There are a couple of other recent threads on this subject. If atf and filters changed and atf level fine - then thrust washer is possibility. Check atf for signs of broken thrust washer.
Quote from other thread regarding putting up with defective thrust washer:
"If you carry on driving with the thrust washer missing, you're going to need machining on the pump face, and the amount of extra play in the input shaft is likely to damage other components.
I don't like to disagree, but based on personal experience (and learning the hard way) I would urge you to get the thrust washer changed while the box is still good. "
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Mine does the same, especially when cold and pulling away first thing. I press the sport button which will then put it back into gear with a thump. I took the car to Sassanach of this forum about a year and a half ago, who very kindly helped me out. He took the box out and the thrust washer was fine. We put the box back on and refilled it (after trying another gearbox which didn't work) which cured it for about a year - the problem is coming back again now though...
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5 Litres sounds low if both sumps were dropped. Should take 7 or 8 IMHO. Might be worth double checking that the ATF was checked after the lever has been cycled through all positions, with the car level and the engine running.
Might be worth a code read to see if the ECU is unhappy about anything. :-/
Kevin
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When you change gear manually to try and put it back in drive and get a "clunk" that is when you might get the eml light coming on and which goes off when you stop and restart engine. Code on pedal test may say something like "Auto Gearbox Service Attention".
Have not had eml light on since atf and filter changed but had one very brief blip when it lost drive at low speed.
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5 Litres sounds low if both sumps were dropped. Should take 7 or 8 IMHO. Might be worth double checking that the ATF was checked after the lever has been cycled through all positions, with the car level and the engine running.
Might be worth a code read to see if the ECU is unhappy about anything. :-/
Kevin
Kev, I have spoken to Steve and I asked the same thing. He said that the car was warm when checked and on a level lift, when the guy undid the level plug oil just dripped out.
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Forgot to say that when they did the oil change they old took off the big sump and not the small one . >:( >:(. This was last year before i know about removing the both ::).
Do you think it would be a good move to have it done with both off and also clean the fillters to.
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hi Steve. Yes mate both sumps, defo. Needs doing again really. Thumping would suggest so on its own.
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hi Steve. Yes mate both sumps, defo. Needs doing again really. Thumping would suggest so on its own.
Hi Chris
Thinking it could be as thinking about it there will be a good amount of old oill still left in the box by not having the 2nd small sump removed.
With the fillers can they just be cleaned or will i deff need to get new ones.
Thank
Steve.
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Hello Steve, thrust washer if broken - remains will be in the small front sump, only one filter which is in the large sump and is cleanable. Please check between which gears does it 'flare', also on the way up or down, or both. On my auto it was between 2-3 going up only, replaced the 2-3 solenoid, problem solved.
regards
richard a
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If the front sump wasn't drained that would only leave a relatively small amount of old fluid in the box when it was changed. (perhaps a litre or two?).
If 5 litres of fluid have been changed I wouldn't say old fluid is going to be the issue, TBH, so I wouldn't go to the trouble of changing it again.
In addition, I doubt the filter will be clogged. These boxes are supposed to be maintenance free unless used hard so the filter will be sized accordingly.
Of course, if you want to drop the front sump only to check for bits of thrust washer that might be worthwhile.
Kevin
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Someone did say something about the bands...could it be that one of them may need adjusting just and if they where out symptoms. Also is there much the Tech 2 can tell my about these i.e if working or adjusted right
Thanks
Steve.
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There is a band that can be adjusted on this box. Not sure what role it plays and if its' maladjustment would result in these symptoms though. :-/
Whilst codes can be read from the ECU using a Tech 2 they would only be reporting if a control circuit into the gearbox was intermittent, for example, or if the gearbox has obviously failed to respond to inputs from the ECU (i.e. hit neutrals and failed to change ratios when commanded).
It might be a start, though, because it could just be an intermittent connection to one of the shift solenoids, I suppose. :-/
Kevin
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Repeat : which gears and when.
As said, there is one band but at present it sounds like a solenoid.
regards
richard a
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if you find out it is a solenoid then i believe ive got a couple you can have when i find them :y
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Repeat : which gears and when.
As said, there is one band but at present it sounds like a solenoid.
regards
richard a
Hi Richard
Just at low speeds ..around town only now and again i would say 1st-2nd or 2nd-3rd. Is there a way of checking the Solenoid or is just just replaced.
Thanks
Steve.
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There is an actuator check on Tech 2 IIRC. Not sure if this is just to check that volts are getting to the solenoids with a multimeter or if you can verify that they are working. Will have to read up on the procedure.
Kevin
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Cool, it would be good to check without taking it all apart
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if you find out it is a solenoid then i believe ive got a couple you can have when i find them :y
Thanks that would be a great help
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Solenoid should read 17.5 to 18.5 ohms (re:Sassanach) the secondhand one from 'unlucky alf', many thanks again, was 18.00.
It was dead easy to change with the filter out, the one that came out read 20.00 ohms.
With lots of town driving the 2-3 solenoid gets all the wear.
regards
richard a
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Can you keep us posted if solenoid change has resolved problem. I obviously missed out on this - just changed oil and filter. Any idea how much a VX solenoid is for the autobox?
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There are five solenoids in the autobox, I am told the one that controls the 2-3 shift is £60 plus.
regards
richard a
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i would have thought JPAT would keep them & what with the 50% discount it should be much cheaper :y
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Hi, My 1995 elite 2.5 diesel autobox 180.000miles Trans ECU GM96018114 Alpha BN. Is also playing up sometimes , over-revving going up between 1-2 or 2-3 (as already described). No flashing gear light, but I have transmission error code 41 on my Polish software tech2. Autotdata book on codes lists omega trans code 41 as possibly:- Gear selection- incorrect, Low fluid level, shift solenoid 1,2,3 TCM. (No TC on diesel omega)
I changed oil 2-3 years ago, but not the fliter (96015432 which is £71-88 inc.). I have the idea, it a solenoid. On some journey I don't have any problems. And others it gets in such a state, that it trys to put away in 3rd and the sport mode light won't come on. Can be corrected normally by stopping ignition off & on then restart.
Any help please.
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Filter can be cleaned, no need to change if in good nick, if your moving when it happens you are in 2rd (1st gets you rolling) so I would suggest it's 2-3, please check this is so, if yes it's the same as the problem I had at 159k - fault was: 'Gear selection-incorrect', emptied both auto sumps, replaced the 2 to 3 solenoid, cleaned filter, refitted then 6 litres of Dexron 3, problem sorted. :y
regards
richard a
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Thanks Richard
How did you get the second-hand solenoid and are they all different, which would be 2-3 solenoid?
When I did the oil change it was only main sump and I topped up oil to filler plug hole this was only 3 litres?
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I think I have a similar problem, I have a Opel omega 2.2 auto -00
It "slips out of gear" when its about switch gear or is close to a gearchange. so i have to avoid staying close to these "switching zones" or i will have to manually put it in 3:rd to make it find the gears again which sometimes bumps so the gearbox jumps in to "safemode" (staying in highest gear at all times). giving a little extra gas at these zones seems to help slightly
Also accelerating hard until it should force a gearchange (high rpm) may cause it to loose gear, or may not change gear at all even if stay at high rpm
This can happen 10times in a halfhour drive, or once in a day.. but never 2 days in a row without a slip. It can happen in all gear switches, not restricted to any particular gear.
Oil, and filter has been changed, oillevel has been checked several times. I get 2 errorcodes, one listed as unknown and the other as "torque error" (use your imagination, i translated from swedish and im not sure if torque is the correct word :-/ )
So, is there any help for my beloved car? or do i have to get a new gearbox? and if so, is it the same box as in the 2,5 V6 ECO TEC? Because if found one of those "cheap" with extremly low milage.
Greatful for all/any help and please keep the language simple if you can since im swedish and not great with cars (except painting them ;D )
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Just to say a big thanks to all over this ... unlucky alf set me a set of Solenoids 2-3 replaced the old one and also gave the fillter a clean and since then has been just fine :y :y .Can not feel the car change gear . Old one looked ok but when i chack the pins of which there are two one was bent back, which i guss could give a bad conenction.
Knock on wood ;D ;D all is ok . will keep an eye on things and update if any thing changes.
Thanks all :y :y