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1991 ford f-150 fuel pump will not stop running
I turn the ignition off and the fuel pump keeps running. I have two
tanks (one pump on the rail) my idea is the computer is sending a bad signat and may be faulty... and suggestions? |
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#2
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1991 ford f-150 fuel pump will not stop running
Relay is stuck...tap it and it'll stop...then replace it -- jeffcoslacker ------------------------------------------------------------------------ jeffcoslacker's Profile: http://www.automotiveforums.com/vbul...?userid=219638 View this thread: http://www.automotiveforums.com/vbul...d.php?t=592059 http://www.automotiveforums.com |
#3
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1991 ford f-150 fuel pump will not stop running
"oldfuel" > wrote in message oups.com... > I turn the ignition off and the fuel pump keeps running. I have two > tanks (one pump on the rail) > my idea is the computer is sending a bad signat and may be faulty... > and suggestions? > The most likely culprit would be a stuck fuel pump relay. Try unplugging it to see if the pump quits running. If it does then either test the relay or substitute another one to verify that it is the problem. The relay location depends on which engine and transmission combination you have, but you will know you found the correct relay if it has the following four wires going to it. Yellow - hot at all times through a fuse link on the starter relay Dark Green with a Yellow stripe - out put to the fuel pump (through the inertia switch), hot when relay is energized Red - power from the ECM with the ignition in the run or crank position Light Blue with an Orange stripe - to the ECM, grounded by the ECM when engine is running or cranking -- Kevin Mouton Automotive Technology Instructor "If women don't find you handsome, they should at least find you handy" Red Green |
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