Question about 1989 Ford Econoline
I have a 1989 ford econoline e-150. It 2 fuel tanks, front and rear, and a switch under the dash to change between them. The front tank will not pump, but the rear tank works just fine.I checked the switch with a watt meter, I am getting voltage from both switch positive leads, but it is in a 1 second delay pulse, and only registering 4.5 volts/pulse. the same is coming through the input positive as well. I checked the other 3 leads on the ground side of the switch, and all 3 have continuity, but not full readings, as if the are going through a coil or something. I checked the power lines running to the fuel pump on both front and rear tanks, both have the same voltage/pulse as the positive leads on the switch under the dash. Is the problem my fuel pump, or did I miss something?
Based on my 20 years in a Ford dealer your problem is the front pump.
Posted on May 21, 2009
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Posted on Jan 02, 2017
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