Question about 1988 Ford Aerostar

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NO FUEL PUMP OPERATING WITH KEY CYCLE ON 1988 EA FALCON AFTER PROBING WITH JUMP WIRE TO BYPASS RELAY OPERATION I HAVE NO FUSE OR RELAY DIAGRAMS

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I suggest you obtain a Chilton manual or other to trace the problem, but if you found the realty and jumping the power to the pump manually works than swap another realty to test, if still not working the fault may be in the engine management computer (EMC), with the manuals help you can identify the wire for the pump realty at the EMC and probe the wire with a test light connect the ground wire for the test light to positive not to ground, wile cycling the key on and off the light should come on for 5 seconds or so then go out, cranking the engine should hold the light on if there is no activity with the light your EMC is defective, if OK than trace the fault back to the realty there is an open contact also before you tare the EMC out, check to insure the fuel pump fuse is OK, and the test light from ground to the fuse shows power

Posted on Jan 31, 2010

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TRY ANOTHER FUEL PUMP!!!!!!!!

Posted on Jan 31, 2010

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