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2002 Ford Expedition Replaced bad #7COP and all spark plugs. Engine won't start now. Disconnected Battery and reconnected thinking it would reset, still won't start. Checked all connections to Plugs and injectors. Sprayed Carb Cleaner in intake and it kinda sputtered but did not start. Thinking its a fuel line problem and going to replace fuel filter. Please help, any ideas other than what I have mentioned.

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  • artzpete Oct 13, 2009

    The problem turned out to be the intank fuel pump. Checked all fuses, fuel safety switch off behind passenger side kick panel, replaced fuel filter, and then turned key to on position to listen for fuel pump kicking on and no sound from gas tank. Disconnected negative battery cable. Drained and dropped fuel tank, replaced fuel filter(checked fuel pump by reconnecting electrical and turning on key...and nothing...same thing with new pump and it worked...this confirmed it was the fuel pump and not electrical problem) reconnected all lines and electrical connections. Primed fuel lines a few times by turning key on and off...definately could hear fuel pump. Turned key all the way and engine started. Problem fixed!

  • artzpete Oct 13, 2009

    The problem turned out to be the intank fuel pump. After checking all fuses, fuel pump relay, and fuel safety switch off and replacing fuel filter (pain in the u know what...needed special tool) decided to check fuel pump. Turned key on and no sound from gas tank. Disconnected negative battery cable. Drained and dropped tank...Checked fuel pump again by pulling it out of tank and reconnecting electrical to it... and nothing...connected new pump to it and it worked confirming problem was fuel pump. Installed new fuel pump and put tank and fuel lines back together. Primed fuel lines by turning key on but not starting a few times...then started engine right up.



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