1993 4.0 ford ranger fuel pump wont shut off when key is in run position
#1
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1993 4.0 ford ranger fuel pump wont shut off when key is in run position
i have a 1993 4.0 ford ranger and when i turn key to run position fuel pump keeps running and it sounds like air leaking under the hood. i have checked all vacuum line and put my hands all around the motor and cant find the leak and the truck wont start. When the fuel pump does cut off i dont hear any air leak and it starts right up. NEED HELP PLEASE?
#3
The fuel injection loop is a closed system. You are probably hearing the gas returning back to the tank. I've owned a lot of Ford trucks and the ECM controls when the pump runs.
I'm not sure if it's the same on your vehicle. If I remember correctly.... on the bigger engine trucks they use two relays to control the pump. Your vehicle may just have one.
I'm not sure if it's the same on your vehicle. If I remember correctly.... on the bigger engine trucks they use two relays to control the pump. Your vehicle may just have one.