ITs a S80 2.4 D5 163hp diesel 2002 model, i've had it for about 8 years now and
the last few months i'v noticed that the gas respons is wayy lower than it was when i bought it. When i'm in 2.3 or 4gear and i tread the gas pedal i suddenly dies out, all al the lamps in the right corner start blinking and its out, it impossibble to find out when its gonna happen.
IT turns of while parked, if its on low diesel it can turn of and i must stop to start back again, if its plenty of diesel in it it just ''humps'' like crazy
so i must go one lower or higher gear,

This stuff can happen if am in first gear and driving very slow or in 5gear.
Very powerful ''jacks'' almost breaking with full force.


Please help if you can `????????

Hope for a answer