Re: 94 ford f150 4.3ltr fuel question
The fuel injectors might be sticking too. As long as you're doing the work yourself and you got it cheap enough, it would be something I'd do. You can use just one pump.Since you have them out, try tapping the motor when you try to power them up and see if they go. They may still need replacing but at least you'll know the system is working if you hook it back in and try with the ignition. They should run for a few seconds on every key to run position. We've had some of those trucks with 200,00 miles and still running good.