Key on engine off (KOEO)- 30 to 45 psi.
What is the fuel pressure suppose to be for a 2002 ford e150 van with a 4.6 liter motor
With a fuel pressure gauge attached to the fuel rail.
Fuel pressure on a 2002 Ford F150 4.2 V6 should be around 40 PSI. When pressure drops too low, fuel is not vaporized properly.
On the fuel rail--on the driver's side of the motor...
If the check engine light is "on" when this happens, get the car "scanned" to find out what the problem is. If not, check fuel pressure at the fuel rail, on top of the motor. Over
65 pounds of feul pressure
The fuel pressure regulator on a 2002 Ford F-150 5.4 liter V8 is located just behind the fuel rail. It is situated near the fuel injectors to ensure proper flow.
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CHECK THE FUEL PRESSURE, MAY NEED ELECTRIC FUEL PUMP REPLACED.
On a 2002 Ford Taurus : The electric fuel pump is inside the fuel tank