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Old 09-25-2012, 12:46 PM   #1
DNoda
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Cranking But No Start Issues

I believe my fuel pump is on its way out. I was driving the car earlier, everything was fine, I went in the store maybe 20 minutes. When I came out the car would crank, but not start unless I kept my foot on the gas, it would stay running this way. I am not getting a CEL or any codes. I could not afford to tow it, I was 23 miles from home, so I used some duct tape I had and taped down the clutch switch so I could start it easier, and off I went. I made it all the way home and now the issue has stopped it will start and idle just fine. Am I correct in thinking the pump is on its way out? I still have nearly a full tank of gas and would like to use most of it now that it is running before I tackle the pump.

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Old 09-25-2012, 03:25 PM   #2
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Could be the pump or its an electrical issue perhaps, like the TPS.
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Old 09-25-2012, 03:51 PM   #3
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I'm wondering what other afro-engineering you've done to the car?
Very good possibility some of it is what's causing your issue.
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Old 09-25-2012, 04:00 PM   #4
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Quote:
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I'm wondering what other afro-engineering you've done to the car?
Very good possibility some of it is what's causing your issue.
The car is completely stock, I just taped that button down so I could start it if it were to die without having to push the clutch in.

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Old 09-25-2012, 11:37 PM   #5
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ten year old Focus...IAC valve is another possibility.
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Old 09-26-2012, 12:38 AM   #6
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Does the car idle?
Yes. Not IAC.
No. IAC is possible.


My thought is Throttle Position Sensor right now.
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Old 09-26-2012, 05:54 AM   #7
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Quote:
Originally Posted by DNoda View Post
I used some duct tape I had and taped down the clutch switch so I could start it easier, and off I went.
That's usually a cause of no-crank, no start issues, so I don't think you need the tape on the CPS.

When is the last time you changed the fuel filter?

How long does the fuel pump run when you turn the key from Off to On? If it runs for more than 3 seconds, then you have a fuel pump that is on it's way out.

Vacuum loss can prevent starting when the engine is cold because the fuel mix will be too lean.
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Old 09-26-2012, 10:41 AM   #8
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I still lean towards the tps. But it could be a fuel filter.xD
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Old 09-26-2012, 11:17 AM   #9
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I will see about changing the filter out this weekend, is there a write up on testing the TPS?

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