Hello,

I hope someone will be able to answer this question. I have a 940 Turbo automatic; it is 16years old and still in extremely good condition.

Apart from one thing, that is. A few months ago, I noticed that, on a lot of ocassions, the gear was not changing from 3rd to 4th. On the gear shift, there is a button which, if pressed, will prevent the gear changing from 3rd to 4th and I wondered if that was achieved by means of a relay; if so, could the relay have "sticky" contacts which prevent the change up from 3rd to 4th?

 

Welcome aboard.

There is a relay for the overdrive. In the relay/fuse panel second row extreme right hand side. Also worth checking on this system are the overdrive solenoid and the switch itself.

 

Thank you very much for your contribution. I have just had a look andI see2 rows of fuses and above them, well set back on the right hand side, a white square object which is probably the relay that you mention. Can you please confirm?

 

By the way, I would be grateful if you would give me the location of the overdrive solenoid and switch in case the relay is not faulty.

 

The first attachment shows the relays on the fuse/relay board.

The second attachment shows the location of the solenoid.

The switch is on top of the gear shift.



[IMG]local://upfiles/4491/6FB92737FB344AD6A500F6F9B1C82C75.jpg[/IMG]

[IMG]local://upfiles/4491/ADE4C967C9CB4470A817E7BE593603B6.jpg[/IMG]

 

Thank you veru much indeed. I removed the relay and tested tor continuity between terminals 1 and 14 as described on page 36 of Volvo maintenance FAQ and got high resistance (but not infinity and also not 0) I presume that since I am testing for continuity, I should get 0. Is this a fair indication that the problem lies with the relay and not the solenoid?

I really do appreciate your help in this matter,

Regards