Mechanics

FORD F-150 FUEL PUMP PROBLEM

1990 Ford F-150

My truck doesn't start. My mechanic already changed the fuel pumps, the fuel pump relays, and eec relay. But when he puts starting fluid on it, it starts right away. What could be the problem? Can anyone else please help?
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Martinaavila
January 8, 2013.



Did he check the fuel pressure?

I assume dual tanks from your description. Did he check the switching valve?

Roy