Fuel injection

1997 CHEVROLET LUMINA
240,000 MILES • 1.3L • 6 CYL • 2WD • AUTOMATIC
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MICHAEL LECONA III
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I got a leak on my fuel rail, but I changed my o-rings and bad injection.
Jan 19, 2020 at 4:24 PM
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ASEMASTER6371
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Good morning,

I would remove the fuel rail completely and change the o-rings. The o-rings that need to be replaced are where the injectors meet the rail, not at the intake manifold. Fuel will not leak from there.

I attached pictures and the one where I circled the o-rings is the ones you need to replace.

Roy
Jan 19, 2020 at 8:31 PM
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MICHAEL LECONA III
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I did that. I got all new ones and they are squirting out everywhere all over the bottom part of the manifold.
Jan 20, 2020 at 6:57 AM
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MICHAEL LECONA III
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But yeah, it leaks from the top where you circle it.
Jan 20, 2020 at 6:59 AM
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ASEMASTER6371
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Okay, that is what I thought.

You need to remove the fuel rail from the car and do this on a bench. You remove the clip that is shown in the picture and the injector will come out.

When installing the new o-ring, use Vaseline to lubricate the o-ring so it does not get damaged when you push it up and in. Then reinstall the clip to hold it.

Roy
Jan 20, 2020 at 7:16 AM
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MICHAEL LECONA III
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Do you think the clips are damage that's why it's leaking?
Jan 20, 2020 at 7:31 AM
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ASEMASTER6371
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No, I think you may have damaged the o-rings if you did not lube them and make sure they were seated.

Roy
Jan 20, 2020 at 7:43 AM
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MICHAEL LECONA III
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Okay yup. because I didn't lube them but there not cracked or broken.
Jan 20, 2020 at 7:47 AM
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ASEMASTER6371
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Do you have it apart right now?

Roy
Jan 20, 2020 at 7:51 AM
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MICHAEL LECONA III
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Yes, but I haven't unbolted the fuel rail and taken off the injectors.
Jan 20, 2020 at 7:53 AM
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MICHAEL LECONA III
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Because there's nothing much more I can do everything is in tacked.
Jan 20, 2020 at 7:54 AM
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ASEMASTER6371
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Okay, so you do not have it apart. Remove the rail and get a new set of o rings and let me know what you see.

If you can, upload some pictures of what you see.

Roy
Jan 20, 2020 at 7:56 AM
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MICHAEL LECONA III
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Okay, will do.
Jan 20, 2020 at 7:57 AM
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ASEMASTER6371
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Thank you.

Roy
Jan 20, 2020 at 8:31 AM
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MICHAEL LECONA III
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Okay, same thing happened except I didn't even make it out to the drive way.
Jan 20, 2020 at 12:05 PM
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ASEMASTER6371
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Pictures as I asked for please.

Roy
Jan 20, 2020 at 3:09 PM
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MICHAEL LECONA III
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And I had to change my fuel rail. the guy that was working on it damaged one of the inserts where the fuel injector goes was pulling out the o-ring.
Jan 22, 2020 at 4:28 AM
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ASEMASTER6371
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Okay, did that resolve the issue?

Roy
Jan 22, 2020 at 4:45 AM
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ASEMASTER6371
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Did you respond? I got an email but nothing came through.

Roy
Jan 22, 2020 at 4:50 AM
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MICHAEL LECONA III
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Yes it stopped leaking but my engine light came back on. I forgot to plug in my temperature gauge and I plugged it in and it turned off and now a couple miles after that it came on again.
Jan 22, 2020 at 4:51 AM
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MICHAEL LECONA III
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And I'm not sure what this is if it needs to be connected or not.
Jan 22, 2020 at 4:53 AM
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ASEMASTER6371
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Okay, what is the code that was set?

Roy
Jan 22, 2020 at 4:53 AM
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MICHAEL LECONA III
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I have to get it checked on my way to check it out now. I'll let you know.
Jan 22, 2020 at 4:54 AM
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ASEMASTER6371
  • Experienced Mechanic
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No problem.

Keep me updated.

Roy
Jan 22, 2020 at 5:08 AM
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