Question about Cars & Trucks
Checked fuses, relay etc. with pump disconnected there is 9-12 v but when pump is connected there is no voltage
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Posted on Jan 02, 2017
SOURCE: No fuel or power to fuel pump.
If the relay is not getting ground signal to turn on then it sounds like a problem with the ECU this is fed from there. Commonly dry solder joints inside the ECU can cause this problem, they have a tendency to crack around the transistors and heavier load components and also components that are subject to mechanical vibration. He said that the fuel pump relay is located in the kick panel and the ECU is next to this. Id take out the ECU and remove the main circuit board and examine for dry solder joints. If you don't know what they look like its somthing like this http://www.tegger.com/hondafaq/mainrelayoperation/dry-joint_small.jpg
Hope this helps
Posted on May 08, 2009
hi tony, i had that same problem come through my shop! i eventualy (hours) found the burnt wire in its clear plastic connector in trunk, above backseat headrest. (top and back of trunk). i hope this helps, so you dont have to do what i did...LOL good luck, marty
Posted on May 27, 2009
When you say you have checked the relays and fuses i hope you checked to see if they have power getting to them. Besides that The most frequent cause of problems is simply a bad contact in wiring connectors. Always check that connections are secure. Inspect the contacts for bent pins or corroded. You may also want to inspect the ground side of the circuit. If everything checks out then you have a bad fuel pump.
Posted on Jun 25, 2009
Check for a fusable link. A fuseable link is a wire that blows just like a fuse when overlaoded or tripped. Im not sure where thay are on your vehicle but they commonly are beside the fuse box under the hood or along the back of the fire wall. You have to cut the plastic housuing around them to expose them. I would either pick up a chilton repair book or call the parts dealer to find the exact location.
Posted on Jun 28, 2009
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