Auto Answers » View Question
rob 4/14/2010
1987 Chevrolet P30 Base 8 Cyl 5.7L - Transmissions & Drivetrains
hesitations on hills when tank between 1/4 to half full
When gas tanks gets to about 1/4 engine hesitates on hill, particularly on hot days.
1 Answer
  • Nissan Technical Advisor
    Check fuel system;

    Fuel pressure - could be the problem. Make fuel pressure test with mechanic assistance

    Fuel pump faulty - check the voltage

    Check pressure regulator - disconnect the fuel return line, is fuel being returned during low pressure?

    Dirt in the fuel tank - clean the tank

    Dirt in the fuel lines - clean the lines

    Clogged fuel filter - replace it with new fuel filter

    Visit for parts


Preview Answer