Why would the fuel lines on my F150 not be sending gas to the engine?

I've been working near a friend for the past few months on switching the engine out of one '91 F150 into another.

Yesterday we finally get everything alligned, replaced the spark plugs, replaced the starter, put in a unknown thermostat, hooked up the celenoid, etc. and put in a unusual battery. Then we put gas within and tried to start her up.

We know we're getting power and spark but don't think any gas is going from the tank to the engine. We read the manual and found the Fuel Line reset button contained by the cab by the clutch. Reset it. Tried again but nought happened. The engine seem like it's trying to turn over but we don't smell gas.

What could be going wrong?

The one and only thing we can think about is that maybe the fuel lines we attached own heat hermetically sealed too tightly over the valves or we've clamped them too tightly and so no gas is getting into the engine? They're on so tight that we can't verbs them off by paw and would have to cut them.

Will magnaflow exhaust on my 94 trans...



Answers:    I would check for continuity at the fuel reservoir cross over switch, These and the inertia switch - they're known to in recent times crap out like that, and it would affect both tank. It's inside the R kick panel underneath the dash

http://www.supermotors.net/vehicles/regi...

There is a pump within each cistern. If it won't start after trying each reservoir {pump} then I would articulate your problem lies elsewhere, the chances of both pumps going fruitless at the same time are slim

other possibilities include, fuel pump relay, fuel pump relay wires, Injector pump, fuel pressure regulator

Would this be a sign of moisture...


check the fuel pump and the fuel filter...

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