[ctwright]

Sounds to me like your contacts are worn out in the fuel pump relay. Replace your fuel pump relay.

Not sure if everything else that is supposed to cut on with your key in the on position is coming on either though. Usually an intermittent problem like that leads to a switch, anything basically with contacts, so a relay as well. Could also be your ignition switch. Just check first that you are getting power to the coil inside the relay with the key in the on position. You should have four connectors in to your relay. 2 for the control side of the circuit, there is a coil between these to connectors, one of them should have 12 volts to it with the key on. The other two are for your power circuit witch actually sends 12 volts to your fuel pump by closing two contacts. What happens is this.

You already have 12 volts on one side of the power circuit, the wire going to the relay, and there is a open set of contacts b/t that wire and the wire going to your fuel pump.

When you supply 12 volts to your coil side by turning on the ignition, the coil energizes and by magnetism pulls the set of contacts close, completing the power circuit, supplying 12 volts to your fuel pump.

If those contacts are bad, some times they may get a good connection and sometimes they may not, and sometimes they never get a good connection.

Hope that helps.