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Honda Civic runs rough - fuel problem?

gswartz777gswartz777 Member Posts: 2
edited February 2016 in Honda
I have a 98 honda civic and a couple of months ago started having issues where it would seem to hesitate. I'd give it gas but it wouldn't accelerate for a second but then kick in, hesitate, kick in, back and forth back and forth. I took it to my mechanic and they replaced the fuel filter. It ran pretty well for a week or so and then slowly started acting up again.

The check engine light came on and the code said to replace the upper O2 sensor which I did. I disconnected the battery for a while to get the engine light to go off and it hasn't come back on since (about 3 weeks ago). However, the hesitation problem persists and seems to be getting worse.

The pattern that I'm noticing is that when the car has sat for a while like overnight and then I first get going it's fine for maybe 10-15 minutes. During this time I'm on the highway and don't notice any hesitation. But after about 10-15 minutes it starts the hesitation and seems to get worse as times goes on. At this point, the only time it won't hesitate is when I'm on the highway. But driving around town it continues to do this.

I'm not sure what else I can check before taking it back to the mechanic. My one fear is that it's my gas tank. I had the car looked at a couple of months ago for some other repairs that it needed and the shop told me that they smelled gas around the tank and it looked like the seam around the tank was corroding. My mechanic didn't notice any gas smell but said it could have been due to the fuel being lower than the seam and therefore not seeping out. So I'm wondering if any of the corrosion has made it's way to the inside of the tank and is getting in the fuel causing it to plug up the filter or somewhere through the lines? To test this I last filled up only halfway but even so it still did it. Of course, if there's junk in the fuel already that has settled, I guess only filling it halfway doesn't mean it's going to remove what's already in the tank. Just not sure how to test this theory any further. And to get a new tank and fuel lines is around $1000 which means I might as well junk the car.

I'd appreciate any suggestions on other things I could look at. Thanks.


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    isellhondasisellhondas Member Posts: 20,342
    Have you done the simple things such as replacing your spark plugs and plug wires?

    A corroded fuel tank is not a good thing and since changing the filter improved things for awhile means it could be plugged up again. I think I would try looking for a used one in a wrecking yard that isn't corroded.
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    gswartz777gswartz777 Member Posts: 2
    I replaced the spark plugs, wires and cap last summer. I'm no mechanic but I would think that if the fuel filter was plugged that it would also hesitate on the highway. Is that incorrect? If it is the fuel filter and I replace it would you suggest keeping it half full to keep the fuel below the seam?
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