Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: geois on 04 October 2013, 09:21:48

Title: Opel Omega 2.5TD 12.1999 problem
Post by: geois on 04 October 2013, 09:21:48

I have searched the forum for previous topics of my problem but it seems that i'm the only one with this problem.
The car is automatic gearbox. When i accelerate a bit harder the car starts shakeing very hard the vibrations being felt like a problem with the drive shaft, but after replacing the middle support and bearing of the shaft, the car does the same, can anyone help me?.
otherwise if it's in neutral the car accelerates perfect, the automatic box shifts good, maybe a little shock when i put it in Drive. What can it be? Also no errors of the car or the gearbox.

Title: Re: Opel Omega 2.5TD 12.1999 problem
Post by: dbug on 04 October 2013, 15:27:34

Gearbox mount gone soft maybe ;)

Title: Re: Opel Omega 2.5TD 12.1999 problem
Post by: ffcgary1 on 04 October 2013, 17:01:48

Have you replaced the front rubber coupling on the prop shaft, these do eventually go soft and can give you the vibration symptoms you describe.
Gary

Title: Re: Opel Omega 2.5TD 12.1999 problem
Post by: geois on 04 October 2013, 17:10:11

the car has been seen by three mechanics, the robber couplings both front and back all three said there are in good condition , the support and bearing were a bit tired so that's why had been changed.
Is this a sign that the gearbox is dying?? or where should i look further ?
i don't like because i didn't heard anyone else with this problem ... :(

Title: Re: Opel Omega 2.5TD 12.1999 problem
Post by: Magwheels on 04 October 2013, 21:53:18

Try swapping the rear wheels to the front and trying again. I know it sounds odd but sometimes the carcasses of the tyres wear odd and this can cause this very problem.

I knew some who spent a fortune on bushes etc before I stuck my twopenneth and fixed it, he was happy it was fixed but not that he spent so much money fixing nothing!

Jacking the car up and looking at the tyre doesn't always show it.

Try it, it won't cost you anything but time.

Let me know how you got on.

Title: Re: Opel Omega 2.5TD 12.1999 problem
Post by: Goldy on 05 October 2013, 08:39:11

Offside engine mount, well it was on mine. Look for the shiney metal on mount and cross member.

Title: Re: Opel Omega 2.5TD 12.1999 problem
Post by: tigers_gonads on 05 October 2013, 10:44:10

Quote from: ffcgary1 on 04 October 2013, 17:01:48

Have you replaced the front rubber coupling on the prop shaft, these do eventually go soft and can give you the vibration symptoms you describe.
Gary

Agree with Gary on this  :)
Check to see if all the bolts are in there holes.
Also check to see if the holes in the plate have elongated.
Once that happens, its replacement time  ;) ;)