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Thread: Fuel smell when idling. Small leak of Fuel Pump, line, or leave it?

  1. #1
    Senior Member dspace9's Avatar
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    Fuel smell when idling. Small leak of Fuel Pump, line, or leave it?

    When I'm idling my Mirage I get the smell of gas in the cabin.

    Not every time, but sometimes; and it's gross. It's like not "a lot" but it's bad enough.

    100% goes away when you get to speed and are cruising around.

    Mechanic says its a small leak from the fuel pump. Maybe fuel line, if those are connected. I'm not a mechanic eh.

    So I have been living with this pungent little issue, but thinking of replacing the pump and/or fuel line. He says its gonna be kinda expensive, so he would leave it.

    Anyone else had similar issue with their Mirage? What did you do?

    My car is the 2014 ES with 186,000 kms. I think that's 115k miles.

    *Edit sorry, gas smell, not exhaust fumes smell.


        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage ES 1.2 manual: 42.2 mpg (US) ... 17.9 km/L ... 5.6 L/100 km ... 50.7 mpg (Imp)


  2. #2
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    Your mechanic doesn't know where the leak is, so shouldn't be recommending to leave it (as it could be a potential fire hazard). Yet the mechanic knows it will be expensive - I wouldn't trust that mechanic

        __________________________________________

        click to view fuel log View my fuel log 2023 Mirage ES 1.2 manual: 43.6 mpg (US) ... 18.5 km/L ... 5.4 L/100 km ... 52.3 mpg (Imp)


  3. The Following 2 Users Say Thank You to BigMW For This Useful Post:

    Fummins (05-09-2023),mohammad (05-11-2023)

  4. #3
    Senior Member dspace9's Avatar
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    Says it's around the fuel pump, but it's very very small. I wonder if anyone else had this fail.

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage ES 1.2 manual: 42.2 mpg (US) ... 17.9 km/L ... 5.6 L/100 km ... 50.7 mpg (Imp)


  5. #4
    I know for sure there at least one person on the forum that’s had an evap leak that was caused by the top of the fuel pump housing cracking. Fix was replace fuel pump assembly. Or at least the housing.

    It’s not a hard job and doesn’t take long to replace, maybe 30 mins tops? I can’t see used ones being hard to find or expensive.
    Last edited by Fummins; 01-22-2023 at 11:06 PM.

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage SE wussie cvt edition. 1.2 automatic: 37.7 mpg (US) ... 16.0 km/L ... 6.2 L/100 km ... 45.3 mpg (Imp)


  6. The Following 4 Users Say Thank You to Fummins For This Useful Post:

    BigMW (01-22-2023),dspace9 (01-22-2023),Top_Fuel (05-09-2023),ylekot (01-22-2023)

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    Senior Member Wallythacker's Avatar
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    I wonder if the incident with the front collision affected the tank/pump as it passed under the car.
    Zero, 2014 ES Plus 5MT, written off but not forgotten.
    Zero II, 2014 SE, 5MT, climate She's HOME now!
    Shelby AKA "Cute", 2017 ES 5MT, A/C.

    Mirage owners look at the world differently than everyone else, but in a better way
    We're driving the Beetle of the 21st century, the greatest small car now available!

        __________________________________________

        click to view fuel log View my fuel log 2017 Mirage ES PLus 1.2 manual: 39.0 mpg (US) ... 16.6 km/L ... 6.0 L/100 km ... 46.8 mpg (Imp)


  8. #6
    Senior Member dspace9's Avatar
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    This has been going on for a few months, predates that recent accident.

    I'll get it fixed soon. Thanks for the information everyone

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage ES 1.2 manual: 42.2 mpg (US) ... 17.9 km/L ... 5.6 L/100 km ... 50.7 mpg (Imp)


  9. #7
    Senior Member dspace9's Avatar
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    I had my car looked at again at another place, and they say the bad smell is from my exhaust system.

    So they did a repair of sections of the lower exhaust with new tubing. So far so good.

    Name:  exhaust1.jpg
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        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage ES 1.2 manual: 42.2 mpg (US) ... 17.9 km/L ... 5.6 L/100 km ... 50.7 mpg (Imp)


  10. #8
    Senior Member Top_Fuel's Avatar
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    Quote Originally Posted by Fummins View Post
    I know for sure there at least one person on the forum thatís had an evap leak that was caused by the top of the fuel pump housing cracking.
    I was thinking of this thread from Doax...

    Fixing a P0442 code (small evap leak -fuel pump housing crack)


        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 52.2 mpg (US) ... 22.2 km/L ... 4.5 L/100 km ... 62.6 mpg (Imp)


  11. The Following User Says Thank You to Top_Fuel For This Useful Post:

    mohammad (05-11-2023)

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