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Omega Help Area => Omega General Help => Topic started by: Richie London on 16 October 2010, 10:27:25

Title: auto gearbox again!!
Post by: Richie London on 16 October 2010, 10:27:25
just drove over to mums, autobox has come up on screen and it was slipping a bit, jacked it up, undid nut, topped up and lowered to let excess run out. took for a drive and its stopped slippin but it seems like only getting in 3 gears. how much fluid should be in there because ive only been able to get about 5 litres in there and i thought it was 6. could i have put the gear selector back wrong when i cleaned it
Title: Re: auto gearbox again!!
Post by: Richie London on 16 October 2010, 10:36:34
wrong section, could an admin please move to general help
Title: Re: auto gearbox again!!
Post by: Jimbob on 16 October 2010, 10:56:53
[movedhere] General Car Chat [move by] Jimbob.
Title: Re: auto gearbox again!!
Post by: Richie London on 16 October 2010, 11:01:01
thanks jim
Title: Re: auto gearbox again!!
Post by: tunnie on 16 October 2010, 11:27:55
think its 9L or something in total, but a lot of it sits in the torque converter . I'd be tempted to drop the sump, see whats going on in there, and check condition of thrust washer. Any gearbox codes stored?
Title: Re: auto gearbox again!!
Post by: Kevin Wood on 16 October 2010, 11:33:01
You did have it running while topping up? :y

IME it took about 6 or 7 litres when I changed mine. I didn't measure how much ended up on the garage floor or in my bouffant though.  ;D

Kevin
Title: Re: auto gearbox again!!
Post by: Varche on 16 October 2010, 12:42:00
If you have had the selector switch off, did you adjust its position when you put it back on. You use an 1/8th inch drill from memory to do the adjustment.

Might be worth checking that before opening up the front sump looking for bits of a broken washer.

Also as kevin says did you check the oil level with the oil warm, engine running and car level?
Title: Re: auto gearbox again!!
Post by: Richie London on 16 October 2010, 13:36:24
drove to mums, engine was hot. checked gearbox level while up on 1 side, and engine still running. started coming out after about 200ml so when i lowered i lost about the same as i put in. went for a drive and gears changed ok but i noticed it wouldnt go above 3rd gear. last friday i dropped both sumps and i reckon about 7 litres came out in all. clean both sumps, put new filter on and new gaskets and replaced. put 5 litres in and started the engine let run till engine got to 80 then topped up, got another litre in then lowered and let excess fall out while running and jacked up and put nut back on.  when i cleaned the selector switch i took apart and cleaned all the crap out and put back on in the same position i took it off. no gearbox codes stored. so i must have to take the selector off again and make sure its in the correct position, would this be why its not using all the gears ??
Title: Re: auto gearbox again!!
Post by: Richie London on 19 October 2010, 20:28:25
right. i have now reset the gear selector switch as instructed in thread. when i pull away it gets to 2nd gear then revvs up and doesnt go into 3rd unless i push the ac pedal hard, then the same when i need to get into the next gear. before i cleaned the 2 sumps all gears were working ok but was a small thud into 3rd, but now is definatly worse since i did a fluid change. there is definatly not enough fluid in there as i could only get 5 litres in after draining about 7 litres out. and if i try to get anymore in it just comes out. i didnt notice anything in the sumps except thick sludge and no broken washers. any ideas?
Title: Re: auto gearbox again!!
Post by: sassanach on 19 October 2010, 21:00:57
2-3 solenoid :y
Title: Re: auto gearbox again!!
Post by: SJKOO01 on 19 October 2010, 21:03:16
Just a thought, but when you did a fluid change, did you also clean / replace the transmission filter ?.  :-?
Title: Re: auto gearbox again!!
Post by: sassanach on 19 October 2010, 21:04:03
never seen a blocked tranny filter.
Title: Re: auto gearbox again!!
Post by: Richie London on 19 October 2010, 21:06:07
Quote
Just a thought, but when you did a fluid change, did you also clean / replace the transmission filter ?.  :-?


yes i did and the gaskets. the fluid was so brown and old and in the bottom of the sumps was quite thick so possibly it has never been done before as the gaskets were welded to the gearbox and i had a hell of a job scrapping them off. where would i find the solenoid or solenoids, what does it look like and what do i need to do to change??
Title: Re: auto gearbox again!!
Post by: sassanach on 19 October 2010, 21:08:03
rear sump under the filter, held in with a roll pin. piece of p+ss to change :y
Title: Re: auto gearbox again!!
Post by: SJKOO01 on 19 October 2010, 21:14:44
Rich,

You may have a bit of a time searching for it on here, but there was photo of where the part is, though can't remember if it was part of a 'maintenance' thread ??.
Title: Re: auto gearbox again!!
Post by: Richie London on 19 October 2010, 21:14:47
Quote
rear sump under the filter, held in with a roll pin. piece of p+ss to change :y

are they expensive to buy?
Title: Re: auto gearbox again!!
Post by: Richie London on 19 October 2010, 21:16:34
Quote
Rich,

You may have a bit of a time searching for it on here, but there was photo of where the part is, though can't remember if it was part of a 'maintenance' thread ??.

thanks i'll have a look but probably wont find it as usual  ;D
Title: Re: auto gearbox again!!
Post by: sassanach on 19 October 2010, 21:18:26
if you buy new approx£50 but i would fit a good s/h one. the 1-2  solenoid is the same and typically has less use. the one you are after is the one nearest the propshaft :y
Title: Re: auto gearbox again!!
Post by: SJKOO01 on 19 October 2010, 21:19:04
Quote
Quote
Rich,

You may have a bit of a time searching for it on here, but there was photo of where the part is, though can't remember if it was part of a 'maintenance' thread ??.

thanks i'll have a look but probably wont find it as usual  ;D

I do tend to keep a lot of help topics on an external drive, so I'll try searching for it tomorow, and post it up, or the link to it if I can find it.

Unless of course someone else beats me to it  ::)  :y
Title: Re: auto gearbox again!!
Post by: Richie London on 19 October 2010, 21:20:46
Quote
Quote
Quote
Rich,

You may have a bit of a time searching for it on here, but there was photo of where the part is, though can't remember if it was part of a 'maintenance' thread ??.

thanks i'll have a look but probably wont find it as usual  ;D

I do tend to keep a lot of help topics on an external drive, so I'll try searching for it tomorow, and post it up, or the link to it if I can find it.

Unless of course someone else beats me to it  ::)  :y


thank you
Title: Re: auto gearbox again!!
Post by: Kneepad on 19 October 2010, 22:52:28
Quote
right. i have now reset the gear selector switch as instructed in thread. when i pull away it gets to 2nd gear then revvs up and doesnt go into 3rd unless i push the ac pedal hard, then the same when i need to get into the next gear. before i cleaned the 2 sumps all gears were working ok but was a small thud into 3rd, but now is definatly worse since i did a fluid change. there is definatly not enough fluid in there as i could only get 5 litres in after draining about 7 litres out. and if i try to get anymore in it just comes out. i didnt notice anything in the sumps except thick sludge and no broken washers. any ideas?

Automatic transmission (approximate):
From dry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.4 litres
After removing main sump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4 litres.
Title: Re: auto gearbox again!!
Post by: RobG on 19 October 2010, 22:58:29
Quote
Quote
Just a thought, but when you did a fluid change, did you also clean / replace the transmission filter ?.  :-?


yes i did and the gaskets. the fluid was so brown and old and in the bottom of the sumps was quite thick so possibly it has never been done before as the gaskets were welded to the gearbox and i had a hell of a job scrapping them off. where would i find the solenoid or solenoids, what does it look like and what do i need to do to change??
Sump off jobbie. Have a read of this and note "Figure 2" part #307 is the 2-3 and part # 303 is the 1-2, 3-4 http://images.omegaowners.com/downloads/Autobox_Docs/4L30E_Article.pdf
Title: Re: auto gearbox again!!
Post by: Richie London on 20 October 2010, 16:18:41
thanks very much rob.
Title: Re: auto gearbox again!!
Post by: SJKOO01 on 20 October 2010, 18:35:16
Hi Rich,

I've had a look for the photo of the gearbox without the filter cover (where switches are), along with the info, but unfortunately I can't find it  :-/ ?.
Mind you, to be honest the info that Rob G has posted for you is a lot more detailed and informed, so hoping that's enough pic's to help you out  :-? ?. 
Title: Re: auto gearbox again!!
Post by: Richie London on 20 October 2010, 18:49:23
Quote
Hi Rich,

I've had a look for the photo of the gearbox without the filter cover (where switches are), along with the info, but unfortunately I can't find it  :-/ ?.
Mind you, to be honest the info that Rob G has posted for you is a lot more detailed and informed, so hoping that's enough pic's to help you out  :-? ?. 


thanks GM. not very big to do it seems but ive got to do it all again. never mind. just hope this is the problem now.
Title: Re: auto gearbox again!!
Post by: albitz on 20 October 2010, 20:12:08
Richie, you say that when you changed the fluid you ran the engine until warm etc. I may be reading it wrong, but running the engine until warm wont achieve anything. You need to drive the car until the ATF is warm. Personally before buying a solenoid I would re-check the ATF   level making sure you follow the correct procedure carefully - Atf up to temp. move the gearshift slowly through all positions a few times , car  level at time of checking etc. :y
Title: Re: auto gearbox again!!
Post by: Richie London on 20 October 2010, 20:18:09
Quote
Richie, you say that when you changed the fluid you ran the engine until warm etc. I may be reading it wrong, but running the engine until warm wont achieve anything. You need to drive the car until the ATF is warm. Personally before buying a solenoid I would re-check the ATF   level making sure you follow the correct procedure carefully - Atf up to temp. move the gearshift slowly through all positions a few times , car  level at time of checking etc. :y

i did that when i topped it up, went for a drive, 8 miles and then checked the level again. was no change. i know i'm a bit confusing but i did it to the thread. and even checked i put the selector switch on right.
Title: Re: auto gearbox again!!
Post by: ted_one on 20 October 2010, 20:35:50
If you do end up needing parts for your trans do'nt forget JPAT they carry all the parts for the AR25/AR35 boxes they know their stuff and give a quick delivery service plus a discount to forum members :y