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Thread: 2000 323i has new battery but won't start...

  1. #1
    Join Date
    Dec 2018
    Location
    Knoxville,TN
    Posts
    19
    My Cars
    2000 323i

    2000 323i has new battery but won't start...

    Hey fellas. I need some wisdom if anyone can help. Last week my 323i (E46) lost dash lights, gauges, and wouldn't idle. I finally realized it was a weak battery and replaced it. Sure enough I got the dash lights and gauges back, but now it won't start. Acts like it's out of gas, but the fuel pump is working and it's got a full tank. Checked the fuel pump fuse and it's fine. Could there be something I've gotta prime or reset when the car loses power? I'm stumped.

  2. #2
    Join Date
    Mar 2016
    Location
    Portland, OR
    Posts
    712
    My Cars
    2002 325Ci Cabriolet
    Nothing special needed to do when replacing the battery on your car. I just replaced mine a couple of weeks back.

    Are you absolutely certain you have a good fuel pressure?

  3. #3
    Join Date
    Jan 2019
    Location
    Czech Republic
    Posts
    9
    My Cars
    BMW e46
    Fuell supply failure ===> Check the fuel supply
    Scratched, clogged, leaking fuel line ===> clean the fuel line
    bad fuel filter ===> replace the fuel filter
    problem with evap = clogged venting ===> check, clean
    A worse problem with injectors, bad injectors.

  4. #4
    Join Date
    Dec 2018
    Location
    Knoxville,TN
    Posts
    19
    My Cars
    2000 323i

    I'll put a gauge on it next, but I can't imagine the fuel pump and the battery dying

    I'll put a gauge on it next, but I can't imagine the fuel pump and the battery dying at exactly the same time. Nobody is that unlucky...

  5. #5
    Join Date
    Dec 2018
    Location
    Knoxville,TN
    Posts
    19
    My Cars
    2000 323i
    What I'm looking for is anything fuel related that can be caused by replacing the battery.
    I'll put a gauge on it next, but I can't imagine the fuel pump and the battery dying at exactly the same time. Nobody is that unlucky...

  6. #6
    Join Date
    Jan 2016
    Location
    Ca
    Posts
    6,981
    My Cars
    2001 525it
    I have had cars fuel pumps die while replacing wiper blades, it can happen any time.

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