Fuel Pump & Fuel Gauge issues, one fixed need help on the other one.
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2004-2007 Cadillac CTS-V General Discussion Discussion, Fuel Pump & Fuel Gauge issues, one fixed need help on the other one. in Cadillac CTS-V Series Forum - 2004 - 2007; My car's fuel gauge never worked, it was always on empty. Lately, the car started having issues starting due to ...
  1. #1
    benelliwang's Avatar
    benelliwang is offline Cadillac Owners Fanatic
    Automobile(s): CTSV, C5TT, STi, 70Camaro
    Join Date
    Sep 2007
    Location
    Lost Wages, NV
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    192

    Fuel Pump & Fuel Gauge issues, one fixed need help on the other one.

    My car's fuel gauge never worked, it was always on empty. Lately, the car started having issues starting due to low fuel pressure. So I swapped out the entire fuel pump assembly and that fixed the low fuel pressure issue. But the gauge is still stuck at empty. So I have the following questions and hopefully fellow V owners can help out. Thanks in advance.

    1. Since it is a saddle fuel tank, is there another fuel pump? If there is another one, does anybody have a picture of it and where it is located?

    2. I know the fuel gauge is calculated using the fuel level sending unit and something related with EVAP system. How do I test for EVAP leak?

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  3. #2
    darkman's Avatar
    darkman is offline Cadillac Owners Master
    Automobile(s): 2005 CTS-V
    Join Date
    Nov 2005
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    Re: Fuel Pump & Fuel Gauge issues, one fixed need help on the other one.

    See attached.

  4. #3
    benelliwang's Avatar
    benelliwang is offline Cadillac Owners Fanatic
    Automobile(s): CTSV, C5TT, STi, 70Camaro
    Join Date
    Sep 2007
    Location
    Lost Wages, NV
    Posts
    192

    Re: Fuel Pump & Fuel Gauge issues, one fixed need help on the other one.

    This is exactly what I am looking for, thank you so much.

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