No fuel!! Won't start, checked fuel pump Help!!! - Focus Fanatics
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Old 02-27-2013, 09:47 AM   #1
FeelinFocust80
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No fuel!! Won't start, checked fuel pump Help!!!

I have a 2003 Ford Focus that i am working on. It dropped a valve seat. Had cylinder head rebuilt,head gasket, and all the necessary gaskets. I was working for my boss and the first time I worked on the car he told me to not replace the piston and connecting rod which I highly recommended he should. He didn't listen. Got it back together and cranked it and it was knocking. Had to take it all back apart and do the work all over again. I then replaced the piston and connecting rod and new head gasket. Got it all back together and went to crank it and now I can't get the vehicle to run. It has spark but no fuel pressure. Pulled the tank and checked the wiring harness to the fuel pump. When I turn the key to the on position we checked it with a volt meter and it shows to be getting power to the fuel pump. Figured it was a bad fuel pump so we checked the fuel pump directly with a battery. When we touch the prongs it works fine. I have no idea why this fuel pump or whatever the problem could be??? I checked the inertia switch and reset it, checked the fuses (which it shows fuse 12 to be the fuel pump fuse??), switched the fuel pump relay out, and it still will not get any fuel pressure to the fuel rail. I am at a stand point and he wants this thing done and sold!! Please help if you have any idea what this issue could be. I'm just confused. I also boought a fuel pump from a salvage yard and hooked it up hanging outside the tank and it wouldn't prime. Hooked up a battery to it and it was no good. I'm wondering if it is still a bad fuel pump?? Maybe a connection problem in the fuel pump itself. All I know is that when I turn the key it has voltage to the fuel pump and the original fuel pump works when connected directly to a battery. Heeeellllpppp Meeeee!!! Thanks


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Old 02-27-2013, 11:48 AM   #2
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If the fuel system worked properly before you tore the engine apart, I would find it an odd coincidence that it developed a problem unrelated to the work that was done to the motor.

Since the car got fuel before you took it apart the second time, that is where I would start. are you 100% certain everything got put back together perfectly? I am not trying to be a jerk, but if I had done that work on my own car, that is where I would start. rather than assuming the fuel problem is a separate issue, ask yourself what did you do to the motor that might effect the fuel system. then start there.
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Old 02-27-2013, 12:00 PM   #3
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I hear ya. The first time I Put it back together everything started right up. But it was knocking.I Put it back together the second time and now problems. I wish he would have listened to me the first time but he's cheap. I rechecked all the connections to make sure everything was connected correctly. But still nothing. The only difference the second time was it was on the lift the second time. The question is with there being power through the harness to the fuel pump. And with the fuel pump checking to be good while hooked directly to a battery. What could cause there being No fuel pressure? I connected the fuel pump to the wiring harness with it hanging out of the tank .cycled the key. And it wouldn't prime. Any suggestions on how to diagnose or troubleshoot this issue???
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Old 02-27-2013, 03:41 PM   #4
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Does the fuel pump prime for 2-3 seconds when you first turn on the key? If not then it could be a ignition switch issue. try disconnecting the battery for 10-15 mins then try again, maybe the security feature (chip in the key) is malfunctioning and needs a reset
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Old 02-27-2013, 03:51 PM   #5
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I think I figured it out. Took the pump out and Put it in a bucket of gas . Hooked a battery directly to the pump. Wouldn't pump gas. Suspect that one of the fuel lines on the actual fuel pump assembly is clogged. Not the safest thing in the world to do but I'm pretty sure I figured it out . Getting a fuel pump in the morning and I'll let you know What happens. Wish me luck!
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Old 02-28-2013, 02:03 PM   #6
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Hey Donny I think you may be onto something. I changed the fuel pump again and it still didn't solve anything. I told them that there was another key but they can't find it. The key that I have turns the car over but it won't run. The fuel pump won't prime. But when I turn the key to the on position it shows voltage through the wiring harness. Is there a security features in the key that would allow power through the harness when checked with a voltage meter but when it is actually connected to the connector on the fuel pump won't allow it to function properly?? Hopefully this makes sense What I'm saying.
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Old 02-28-2013, 03:47 PM   #7
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Mother effin ' rats!!!!
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