Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: KJO on 22 March 2011, 09:24:53

Title: Defunct auto box (2.2 petrol Y reg)
Post by: KJO on 22 March 2011, 09:24:53

The box box will change up from 1st if put into 1st manually. It jolts into 2nd when the gear shift is moved into drive. It then changes smoothly into 3rd, however the revs are corresponding to it being in 4th. If the the gear shift is pulled into 3rd there is no change in revs. So I suspect it goes straight from 1st to 3rd when the the gear shift is put into drive hence the jolt and then it changes smoothly into 4th. It will not change down other than moving the gear shift manualy. The torque lock appears to work as the engine turns over at 2000 rpm @ 50 mph & I am getting  26-27 mpg with rural/urban driving. Opel dealer says  box needs to be replaced. Its done 125k. It seems strange that it should be defunct with such low mileage. Anyone any ideas or should I drive it to a scrap yard. :-/   

Title: Re: Defunct auto box (2.2 petrol Y reg)
Post by: RobG on 22 March 2011, 09:31:41

Fisrt thing to check is the fluid level & a possible fluid change. One of the solenoids in the box controls the change from 1st to 2nd then from 3rd to 4th (another one controls 2-3) could possibly be that one. Easy enough to change with the sump off

Title: Re: Defunct auto box (2.2 petrol Y reg)
Post by: KJO on 22 March 2011, 12:29:00

Fluid level ok. Its been given the tec11 treatment and they say the selector is working fine.

Title: Re: Defunct auto box (2.2 petrol Y reg)
Post by: RobG on 22 March 2011, 12:46:52

Quote

Fluid level ok. Its been given the tec11 treatment and they say the selector is working fine.

Selector may be OK, still sounds like solenoid problem

Title: Re: Defunct auto box (2.2 petrol Y reg)
Post by: KJO on 22 March 2011, 13:35:21

Any idea how to check the solenoid?

Title: Re: Defunct auto box (2.2 petrol Y reg)
Post by: Vamps on 25 March 2011, 00:21:26

Well? not 100% sure about mine, I must have bought the worst perfect Omega there is.... >:( >:( :'( :'(

Title: Re: Defunct auto box (2.2 petrol Y reg)
Post by: sassanach on 25 March 2011, 17:31:17

remove the rear sump the 1-2 solenoid is the one nearest the side of the box,resistance should be 17.5-18.5 ohms.
                       1-2/3-4                        2-3
                   shift solenoid               shift solenoid

1ST GEAR          OFF                            ON
2ND GEAR         ON                              ON
3RD GEAR         ON                             OFF
4TH GEAR         OFF                            OFF
 :y

Title: Re: Defunct auto box (2.2 petrol Y reg)
Post by: KJO on 26 March 2011, 13:20:58

Many thanks for the info on checking solenoids. :y