[V8] Gearbox/cruisecontrol/air recirc problem

[Peter Littlewood]

Hello 
Have had a problem for a while with the cruise control not working, this packed up the same time as the air con recirculator button (which now doesn't seem to do anything) 
I seem to remember someone else having similar problems a while back (possibly relating to the auto transmision) if this jogs any memorys I'd be grateful for any feed back.
My transmision did throw a selection wobbly about 20k ago but seems to have sorted itself out.
One last question, is it normal for a vacuum to form in the fuel tank when running low on petrol? Often get a wooshing sound when I undo the cap.

Thanks for reading

Pete Littlewood
1990V8Q   P.T