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Old 11-19-2012, 08:00 AM   #1
walkeasy
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05 Focus Didn't start this morning, where to start...

Went to start my car this morning and it was a no go.. Sounds like the starter is working, didn't hear the fuel pump run, battery is providing suffient power.

When I turn the key, I get an almost grinding sound.. Never quite heard that before..

Currently at 147K miles. Have only replaced air intake, alternator and battery. Might be time to replace the fuel filter, now that I think about it...

For maybe the last 20K miles the car has shown signs of random delayed starting. This delayed starting just seemed like I needed a few extra seconds of cranking to get started. My intial thoughts were the starter. This might not be the same issue. Power during driving, idle, etc has been normal.


My question, Where do I start? Any test that could help narrow the problem? The car is in my driveway and I have some time, but don't want to chase my tail. Should I hear the fuel pump? I think so, but never really paid attention as my car always started. (I do pay attention in my older truck, so I know what to hear)


Thanks in advance.


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Old 11-19-2012, 08:14 AM   #2
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When you turn the key to the 1st position , you should hear the pump prime before you turn the key to the next position where it should start. If your hearing a grinding sound that maybe your starter going out.
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Old 11-19-2012, 04:35 PM   #3
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Update now that it is not 6 am and I can think...

Just tried starting the car again..

I did not hear the fuel pump. I listen very carefully. I heard a clicking up front but nothing in the back. I am comparing the sound of my fuel pump to the pump on my truck, it is obvious but you have to listen for it.

I was able to get my car started by pressing repeatedly on the gas pedal while it was cranking. I tried this after 2 or 3 attempts with no luck.

I do remember one morning starting my car and it was like it was only half running? maybe half the engine? I dunno that was weird. I shut it down and restarted and away I went. That was about 1 - 2 months ago.

Does that help?
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Old 11-19-2012, 05:13 PM   #4
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So this is no crank/no start? If you can't hear the fuel pump, then you probably need a new one. You can try bypassing the fuel cutoff switch, but it's doubtful that is part of the problem. The only other part that can cause this is the fuel pump controller. To test that you'll need a digital multi-meter. Disconnect the power going to the fuel pump, and test the connector with the key on to see if you can find voltage- do not expect 12v.
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Old 11-19-2012, 05:19 PM   #5
walkeasy
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is it possible that my car will run fine with a bad fuel pump?

Is this fuel pump located outside the gas tank?

To test the controller, I need to check the voltage on the power wire that powers the fuel pump, after its been disconnected?

I don't understand the comment, "So this is no crank/no start?"

Thanks!
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Old 11-19-2012, 05:31 PM   #6
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There are 2 basic no start conditions with a car. 1) not cranking (I wrote no crank/no start) 2) crank but no start.

Not cranking could be the starter, starter wiring, or the battery because the engine won't turn over. Those are easy.

Crank but no start is much more difficult. It could be fuel, spark, air, exhaust--- lots of things to diagnose here.

Nearly all fuel pumps are in the tank, and typically if you have a vehicle with a pump outside of the tank, there is still a pump in the tank that feeds the high pressure external pump.

The fuel pump controller is under the back seat. The back seat bottom simply pulls up. Put your hand between the top and bottom of the seat in the middle, grab the bottom, pull straight up. Look on the passenger side under the seat. You'll see 2 power plugs, one facing the front of the car, and one facing the rear. Unplug the one on the back side, and have someone turn the key on while you test between the pins on the controller itself. Don't short it out with the tester. You should see about 10v or maybe 12v since the fuel sensor is not detecting any pressure. If you see power, then it's definitely the pump.

If you purchase a pump to DIY remember to purchase a fuel filter as well. Most pumps companies will not honor any warranty if a new fuel filter is not on the same receipt. Purchase another fuel filter even if you just replaced it. It's worth it for the warranty.
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