Replaced fuel pump now inside of the car has a gas smell
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Replaced fuel pump now inside of the car has a gas smell in Past Cadillac Vehicle Discussion; I had my fuel pump and fuel filter replaced in late May in my 2000 Deville. Now I often smell ...
  1. #1
    tutball is offline Cadillac Owners Member
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    Replaced fuel pump now inside of the car has a gas smell

    I had my fuel pump and fuel filter replaced in late May in my 2000 Deville. Now I often smell gas when Im driving. It is also stronger when I fill my car up. Now I know my fuel pump is located in my trunk under the matting. I have subwoofers in the trunk but the gas smell has never been a problem until I got my fuel pump replaced. Is it possible that something came lose or that they put the wrong fuel pump in? I have the manual and illustrations for the deville is this something I possibly could fixed because the shop that replaced the fuel pump is over 500 miles away. Thanks

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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
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    Re: Replaced fuel pump now inside of the car has a gas smell

    It's either a leaking fuel pump module lock/seal ring, fuel line connectors, EVAP canister/solenoid or rusted fuel filler pipe.

    The fuel pump module is in the fuel tank. The access hatch (in your car) is under the trunk carpet.

  4. #3
    tutball is offline Cadillac Owners Member
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    Re: Replaced fuel pump now inside of the car has a gas smell

    Update I filled up at the gas station and went in to grab a drink I come back out and notice gas was leaking from under my car. Also check engine light popped on about a week after getting my fuel pump and filter replaced. So I went to auto zone and got a diagnostics test and it revealed loose gas cap. So I tighten the cap that was already tight and the light stayed on. Any suggestions anyone?

  5. #4
    Submariner409's Avatar
    Submariner409 is offline If it won't run, stick on fender vents
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    Re: Replaced fuel pump now inside of the car has a gas smell

    Ummm, Post #2 ???

  6. #5
    carnut is offline Cadillac Owners Master
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    Re: Replaced fuel pump now inside of the car has a gas smell

    Re read post number 2!!! The Auto Zone test showed a code for fuel evap. system. Not a loose cap. When the tank wont hold pressure, a check eng. light comes on. I cannt believe you havent pulled the inspection cover off and looked for stains of fuel around the fuel pump module lock ring. When you ask for help we assume you can at least check what we advise to check. If you want free diagnosis, eyes are better than the written word.

  7. #6
    tutball is offline Cadillac Owners Member
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    Re: Replaced fuel pump now inside of the car has a gas smell

    Update #3. I jacked up my car to see if I could identify where the leak was coming from and seen nothing out of the obvious. So I lowered my car back down and heard fluid leaking onto the pavement. So I crawled in my trunk and open up my fuel pump compartment and saw gas residue. I pumped it back up with the lid off and seen the compartment start to fill with fluid. When I lowered it again the fuel drained. I dont believe this is normal. I just had the fuel pump replaced. Any suggestions?

  8. #7
    tutball is offline Cadillac Owners Member
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    Re: Replaced fuel pump now inside of the car has a gas smell

    Update #4. Thanks for all your help I will replace the fuel pump o -ring in the morning and that should solve my problem if not??? Thanks

  9. #8
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Replaced fuel pump now inside of the car has a gas smell

    Quote Originally Posted by tutball View Post
    Update #3. I jacked up my car to see if I could identify where the leak was coming from and seen nothing out of the obvious. So I lowered my car back down and heard fluid leaking onto the pavement. So I crawled in my trunk and open up my fuel pump compartment and saw gas residue. I pumped it back up with the lid off and seen the compartment start to fill with fluid. When I lowered it again the fuel drained. I dont believe this is normal. I just had the fuel pump replaced. Any suggestions?
    No it is not normal. Take it back to whoever did the replacement and let them fix THEIR mistake.

  10. #9
    tutball is offline Cadillac Owners Member
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    Re: Replaced fuel pump now inside of the car has a gas smell

    Thanks. I would do that but I would have to drive 500 + miles to do so.

  11. #10
    tutball is offline Cadillac Owners Member
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    Re: Replaced fuel pump now inside of the car has a gas smell

    Im researching o-rings tonight. Is it even possible to buy just the o-ring for the Airtex fuel pump model e3518m? Im having a hard time finding just the o-ring.

  12. #11
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Replaced fuel pump now inside of the car has a gas smell


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