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Old 10-09-2012, 12:38 PM   #1
joesperformance
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Exclamation Focus Misfire/Stutter when fuel gets low

I have an 01 Zetec focus, 5spd... has roughly 84k miles....

car use to stutter after fuel gauge came on.... then a couple months later it started doing it as soon as low fuel gauge came on.... now its at the point when i get to about an 1/8th tank it starts doing it now....

any idea what is causing this??

ive never had any type of problem like this in the past with any vehicle i've owned....

it starts stuttering and misfiring.... and gets worst as i give it gas, but lightens up a bit as i ease off the gas.....


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Old 10-09-2012, 02:04 PM   #2
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Same here. Mine started skipping and stalling at about 1/4 tank about 2 months ago. Then it happened after a fillup last month. I must have stirred up some crap in the tank.I know I have to do my fuel pump and filter soon. It was my plan a few weeks back, but my wallet nixed that.
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Old 10-09-2012, 03:04 PM   #3
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its strange, cuz ive had the car over a year now and it just started doing it in the last 4 months, ive ran the car down to nearly empty before with no problems....
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Old 10-09-2012, 03:19 PM   #4
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Well, it's a well known problem with the early Focus. There was repair offered through Ford for 10 years. I've also read that the ethanol mix in the ethanol fuel cleans all the crud in the fuel tank and it has to go somewhere. I never had mine replaced. So I have to drop the tank or cut an access hole in my floor.
http://www.focusfanatics.com/forum/showthread.php?t=276213
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Old 10-09-2012, 05:49 PM   #5
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Thanks for the write up. Appears to be basically the same as making my access panel for my firebird.

So if I clean out my tank and strainer on fuel pump that should solve my problem?

I'll probably do it when I'm low on fuel to make it easier plus less wasted fuel then.
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Old 10-09-2012, 05:56 PM   #6
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You probably want to do a new pump while you're at it. That's my plan anyway.
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Old 10-09-2012, 09:15 PM   #7
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Quote:
Originally Posted by TerryB View Post
You probably want to do a new pump while you're at it. That's my plan anyway.
very true.... might as well upgrade, costs about the same price....
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Old 10-09-2012, 09:23 PM   #8
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I'd upgrade the whole assembly to the newer style.
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Old 10-10-2012, 08:16 PM   #9
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I'd upgrade the whole assembly to the newer style.
oh?? i didnt know there was an upgraded style.... any info on it?
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Old 10-11-2012, 12:27 PM   #10
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is this the old or new style??

http://focus.c-f-m.com/fordfuelpumpf...ocuszetec.aspx


or should i just upgrade to this one.... says it'd fit my 01,

http://focus.c-f-m.com/fordhighflow2...fordfocus.aspx
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