1995 Volvo 960 Fuel system problem
 

I own a 1995 Volvo 960 sedan model. Mileage at 110,000. Car travels perfect up to approx. 130 miles, then speed drops to between 20 to 30 mph and will not pick up speed upon accelerating. The car is parked overnite (cooled), the same issues occurs again. I have already replaced fuel pump, fuel filter, etc... No response to this issue from Dealers in Lusaka, Zambia. Has anyone experienced same problem?

is the car in Volvo dealership now??