Ford Repair Questions? Ask a Mechanic for Answers ASAP
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You will need to lower the fuel tank to replace the pump. If you remove the rear seat cushion you will see an access to the pump. The problem is the hole in the floor is a little to small. You can cut away at the floor to give yourself enough room to remove the fuel pump. If you do cut out the floor be very carefull of the wiring harnes and the fuel lines.
It does sound like the fuel pump from your description as the pump most likely is not running once it gets hot. To verify this a fuel pressure gauge will need to be installed to see if you have fuel pressure when the engine is not starting. You should also see if the theft light is flashing fast when the engine is not starting as this is the PATS system preventing the engine from starting.
Here is the procedure to remove the tank. The rear seat cushion will need to be removed to access the connector and fuel lines. To remove the lines you need to squeeze the two tabs and lift up on the line. Ford has a specail tool to remove the locking ring but a flat head scredriver and a small hammer will work.
Fuel tank removal
Let me know how you make out and if you need further assistance.