The vapor mixture in the tank is too rich in fuel (not enough oxygen) to ignite.
Check and see if you have access to the top of the fuel tank from the trunk. If not you will have to raise the car, and carefully remove the fuel tank from underneath. The fuel pump is then removed from the top of the tank. It's not a difficult job f...
it's hard on the fuel pump mostly and it also is a great way to get all the debris and scuz floating around in the bottom of the tank into the main fuel system to start plugging the fuel filter and injectors. fuel pumps are cooled by the surrounding ...