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I have had bad pumps rite out of the box but dont assume its a bad pump check for power at the pump with a test lite remember the pump only has power for 10 or so seconds after key is on if vehicle dont start pump will lose power until key is turned off then you have to turn key back on best if done with 2 people
This issue can be any one of 50 million items. Near the top of the list is your fuel pump. Have you heard any screaching from under the vehicle?
a quick test is have someone crank over the engine while you are under POUNDING on the lowest part of the fuel tank. Often this will shake the fuel pump into working, if it does, change the fuel pump real soon, or fail again.
If you have the fuel injected 460 with tfi module on the distributor have it replaced[ I did after replacing all my fuel pumps,plugs and wires].All you need to do is have it replaced $50 part half hour labor
without further diagnosis and proper testing equipment it sounds like you have a bad ignition coil or possibly a bad fuel pump. remove the fuel filler cap when this happens and listen for the fuel pump to come on when you turn the key to the run position. the fuel pump should run for 3-5 seconds. if it does the ignition coil is probably bad as the windings inside the coil can seperate when hot and reconnect when they cool again. good luck
Could be an air fault aswell, not getting enough or maybe to much air to start check all your pipes and air mass meter for any rips in pipes or a dirty sensor.
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