What does 35 psi mean on fuel pump?
CASE 2: If the fuel pressure gauge registered 35 PSI: This fuel pressure gauge result lets you know that the fuel pump is working and delivering enough fuel to the fuel injectors. The reason your 4.0L Ford vehicle is not starting is due to another reason.
How big is a ps114 fuel pump harness?
2 Terminal Basic Normally Open PS114 2 Terminal 1/8″-27 NPT PS113 2 Terminal 1/4″-18 NPT 3 Terminal Normally Open, and Normally Closed PS122 3 Terminal 1/8″-27 NPT PS118 3 Terminal 1/4″-18 NPT 2 Terminal Harness Adapters(Harder to find)
What does 0 psi mean on a fuel gauge?
The fuel pressure gauge will register 0 PSI. OK, now that the testing part is done, let’s take a look at what your results mean: CASE 1: If the fuel pressure gauge registered 0 PSI. This confirms that the cause of your 4.0L Ford Explorer (Ranger, Aerostar, Mountaineer) is caused by a lack of fuel.
What kind of wiring do I need for a fuel pump?
Fuel pump wiring for the RED circuit is generally going to carry a much higher current than the relay. So use a larger gauge wire for lower voltage drop. For big pumps try 12 gauge, for smaller smaller 14 gauge.
How much psi does a fuel pump need to start?
The fuel pump produces much more than just 50 PSI of course.. but the bare minimum the engine needs to start is 50 PSI… so anything less and it will crank for ever before it starts or not start at all.
What happens when you replace the harness on a fuel pump?
Failure to replace the electrical connector on the harness side can cause voltage spikes across the new fuel pump. Over time this can damage the part. Replacement of the harness connector is a fairly simple operation and the parts are readily available from your GM dealer parts department.
2 Terminal Basic Normally Open PS114 2 Terminal 1/8″-27 NPT PS113 2 Terminal 1/4″-18 NPT 3 Terminal Normally Open, and Normally Closed PS122 3 Terminal 1/8″-27 NPT PS118 3 Terminal 1/4″-18 NPT 2 Terminal Harness Adapters(Harder to find)
Fuel pump wiring for the RED circuit is generally going to carry a much higher current than the relay. So use a larger gauge wire for lower voltage drop. For big pumps try 12 gauge, for smaller smaller 14 gauge.