Hello, I have a problem in newly acquired Volvo 940.
Take 5 manual gearbox with overdrive.
When the car is cold, if I walk a 20km more or less the fifth goes smoothly pressing the button but the problem comes when I have been circulating for a while.
By putting the overdrive does nothing but Sotar accelerating falls off the accelerator and start to reduce at about 2000RPM jerking.
When that happens if you lose the car you put 4 and you give the button, it sounds the relay and solenoid.
It would also be interested in getting car workshop manual if anyone knows where to get it.

Then I have another problem with the air conditioning. The compressor will not start and is newly charged gas. "That could be the relay or AC button?. Does anyone know where is the relay?

Have someone can help me.

Regards