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Fuel leak I see a spot underneath the car?

Tiny
BHAMDOC1973
  • MEMBER
  • 2014 DODGE DART
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 126,000 MILES
Put in a new pump assembly cause the fuel level was not showing. I went to put some fuel and I saw a spot underneath the car. Is there a common issue with these? No fuel on top from the hoses around the pump.
Friday, September 6th, 2024 AT 10:13 AM

11 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi,

There really isn't anything common as far as a fuel leak. If you are seeing it under the vehicle, is it near the fuel tank? Have you inspected the fuel lines?

Let me know where you are seeing the leak. Also, let me know what size 4 cylinder this is. It came with a 2.0L, 2.4L, or a 1.4L turbo.

Let me know.

Joe
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Friday, September 6th, 2024 AT 8:25 PM
Tiny
BHAMDOC1973
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2.4l, right under the tank where the heat shield is. All lines on top at the pump are dry.
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Friday, September 6th, 2024 AT 8:26 PM
Tiny
JACOBANDNICKOLAS
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Is there any evidence of it leaking down the side of the tank? When you installed the new pump assembly, was the rubber gasket properly aligned and have all seven of the retainer (see pic 1 below) notches locked? Is the fuel pump module in the same position as the original one was? See pic 2. Those are the directions for removal. The three items need to be in the same position as when they were removed for the fuel level to read properly and to properly seal.

Let me know.

Joe

See pics below.
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Friday, September 6th, 2024 AT 9:11 PM
Tiny
BHAMDOC1973
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Yes, nothing is leaking from the top. I am sure. I sobe several pumps and familiar with the notches and ring.
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Friday, September 6th, 2024 AT 9:25 PM
Tiny
JACOBANDNICKOLAS
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Hi,

If that is the case, check to see if any steel lines have rusted and started leaking since they were moved around. Other than that, or a rubber hose leaking, it could have damage to the tank. They are plastic, so rust isn't an issue.

Let me know.

Joe
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Friday, September 6th, 2024 AT 9:29 PM
Tiny
BHAMDOC1973
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All the lines on top are plastic so rust is out. I'll jack it up and see. Thing is its sitting at less than a quart of gas, nit I saw it parked it had a big spot under it which took days, so it can't be coming from above.
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Saturday, September 7th, 2024 AT 4:20 AM
Tiny
JACOBANDNICKOLAS
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Hi,

The plastic lines should connect to steel under the vehicle. Check them as well. Let me know what you find. I'm interested in knowing.

Joe
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Saturday, September 7th, 2024 AT 6:06 PM
Tiny
BHAMDOC1973
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Turned out a hole in tank. Thanks
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Saturday, September 7th, 2024 AT 7:21 PM
Tiny
JACOBANDNICKOLAS
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Hi,

Thanks for the update. Wow, it sounds like you have the same kind of luck as me. Nothing ever is easy.

Take care and come back anytime.

Joe
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Saturday, September 7th, 2024 AT 7:39 PM
Tiny
BHAMDOC1973
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Lol. The previous owner had deleted the muffler. He cut it about 2 feet away from the tank. Hot air from muffler was blowing straight on the heat shield covering the tank. The heat shield got so hot and made an imprint on the tank, eventually a small piece melted and made a hole. Avoided a fire.
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Sunday, September 8th, 2024 AT 4:34 AM
Tiny
JACOBANDNICKOLAS
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Wow. That wasn't done right at all. Ugh! Lucky there wasn't a fire.

Take care,

Joe
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Sunday, September 8th, 2024 AT 4:54 PM

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