Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: MutantCav on 25 August 2008, 21:52:52

Title: Autobox...slow changing into gear from stationary
Post by: MutantCav on 25 August 2008, 21:52:52
Its lost fluid so may well need a top up...but would gearbox selector problems cause this too or make things worse??
Title: Re: Autobox...slow changing into gear from stationary
Post by: TheBoy on 25 August 2008, 22:29:54
the symptoms are low atf
Title: Re: Autobox...slow changing into gear from stationary
Post by: MutantCav on 25 August 2008, 22:39:15
Ok, will give it a transfusion :) Thanks :)
Title: Re: Autobox...slow changing into gear from stationary
Post by: lpgelite on 25 August 2008, 23:55:11
Hopefully it hasn't pished out too much fluid and cooked the innards. Sump fluid will appear like mud and stink if this has happened.

Be worried if it takes more than a litre to top up, although you may be OK if it hasn't been driven too hard.

Stating the obvious, it would be prudent to find the source of the leak and keep an eye to it.

My money's on the torque converter seal, which hardens with age and high mileage.

Not much worse a job than changing the clutch on a manual, as it lives external to the front of the autobox and is easily accessible once the converter is removed.

The seal cost me about £17 from Autovaux and is held in place by three small bolts. The new one needs to be tapped in to its housing gently with a block of wood to protect it from damage.

It's nice not having the smell of burning oil wafting up from the exhaust any more...
Title: Re: Autobox...slow changing into gear from stationary
Post by: justme on 26 August 2008, 17:03:00
Quote
Its lost fluid so may well need a top up...but would gearbox selector problems cause this too or make things worse??


Is this from cold, if it is then it is quite normall untill cats warmup.
Title: Re: Autobox...slow changing into gear from stationary
Post by: MutantCav on 28 August 2008, 21:58:17
Ok sorted...litre of fluid and all is well...with the box anyway lol

Changing quickly and cleanly now...not a leak but the fact that I cut the pipes from the pump to the box in preparation to strip the engine out then started the engine forgetting I had...then had to fix the pipes due to no longer stripping it!

Thanks for the help, you are as always spot on with analysis guys :)
Title: Re: Autobox...slow changing into gear from stationary
Post by: Hog on 28 August 2008, 22:58:47
Did you flush, top up or turkey baste your system??
Title: Re: Autobox...slow changing into gear from stationary
Post by: humbucker on 29 August 2008, 08:42:44
is there a way of telling if your autobox fluid is low? i take it doesnt appear on the mid?
Title: Re: Autobox...slow changing into gear from stationary
Post by: MutantCav on 29 August 2008, 09:34:06
Dont know mate, but there was a distinctly pregnant pause between putting it in drive or reverse and it actually going into gear to move the car...litre of fluid sorted it perfectly :) First time I have topped up a box and was so surprisingly easy to do...

Plus got the GM Motors DIII gearbox fluid from Halfrauds...sorted!
Title: Re: Autobox...slow changing into gear from stationary
Post by: TheBoy on 29 August 2008, 10:17:04
If you drive with the big pause too long, the box may be toast soon...
Title: Re: Autobox...slow changing into gear from stationary
Post by: humbucker on 29 August 2008, 10:24:57
Quote
If you drive with the big pause too long, the box may be toast soon...

how long are we talking then, between gear change and getting into gear? just for future reference...
Title: Re: Autobox...slow changing into gear from stationary
Post by: TheBoy on 29 August 2008, 11:32:19
Quote
Quote
If you drive with the big pause too long, the box may be toast soon...

how long are we talking then, between gear change and getting into gear? just for future reference...
Virtually instantaeous.
Title: Re: Autobox...slow changing into gear from stationary
Post by: humbucker on 29 August 2008, 11:36:49
Quote
Quote
Quote
If you drive with the big pause too long, the box may be toast soon...

how long are we talking then, between gear change and getting into gear? just for future reference...
Virtually instantaeous.

i meant the pause, but i guess from your response you mean ANY delay is a bad thing?
Title: Re: Autobox...slow changing into gear from stationary
Post by: TheBoy on 29 August 2008, 11:39:59
Quote
Quote
Quote
Quote
If you drive with the big pause too long, the box may be toast soon...

how long are we talking then, between gear change and getting into gear? just for future reference...
Virtually instantaeous.

i meant the pause, but i guess from your response you mean ANY delay is a bad thing?
There should be virtually no pause - by the time you drop it in to D, you should start to feel the drag.
Title: Re: Autobox...slow changing into gear from stationary
Post by: SteveMJ on 29 August 2008, 13:05:41
My 3.2 V6 it takes a few seconds before fully engaging if the cars has been left stadning for a while (say 2 days).  Via Autobahnstormers I've heard that this is not unusual.

I can't check my autotrans fluid easily (if at all), I did change it and the filter at 50Kmiles (now about 75k miles).  the fluid came out clean.

Hope this help

Steve
Title: Re: Autobox...slow changing into gear from stationary
Post by: MutantCav on 29 August 2008, 15:14:37
Yeah the car is now basically instantaneous as it should be...prior to the top up it was probably about a second or two, felt like it was stuck in neutral awaiting change and car rolled back while it was waiting to go into gear so quite dangerous too...but hadnt been driven like that, was ok before the fluid leaked out the pipes so no damage to the box I'm sure...

Not sure I would agree with the ABS diagnosis...should be immediate even if you leave it I would say...but check the level if its not and see...