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2003 Subaru Impreza battery/non starting problem?
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Thread: 2003 Subaru Impreza battery/non starting problem?

  1. #1
    mantona69
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    Default 2003 Subaru Impreza battery/non starting problem?

    My 2003 impreza keeps breaking down, if u leave it for a few days(or sometimes just for a few hours) then it just wont start at all, this has happened several times and several different garages have checked and said they cant find anything wrong. usually if the battery is charged then it starts working again but it is a recurring problem. it has done around 50,000 miles and hasnt really had to have too much done to it in terms of repairs. any ideas?u are right in assuming it can be started with a jump. sorry forgot to mention have had the battery changed once, i think it may just be some loose wiring or something along those lines that is draining the battery

  2. #2
    causticline
    Guest

    Default 2003 Subaru Impreza battery/non starting problem?

    change the battery, weak cellsbefore that check your connections at the battery and make sure that's the problem though, works fine off a jump i assumeedit: yes you're also right that there could be some sort of parasitic drain on the battery, sometimes an open short something on that shouldn't be, but I'd still first start looking into having a bum battery even if it has been changed in the past few years. good luck

  3. #3
    Roze
    Guest

    Default 2003 Subaru Impreza battery/non starting problem?

    You thought of, it may be have short cut some where sound maybe it is the reason but you know the electricity get to that point. It will be better getting rid of car

  4. #4
    Hawkeye85
    Guest

    Default 2003 Subaru Impreza battery/non starting problem?

    If the battery is ok has yor garage checked the altenator. The altenator is supposed to charge the battery when running and keep it at and around 12volts. If it is not working proerly it will not charge it fully everytime you use it. The test can be done with a volt meter to make sure a current flow is reaching it and out to the battery. This can be done by yourself following your car service book or done by a garage. Ask it to be done and watch what they do.

  5. #5
    Suby Talker
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    Here is what Subaru says about the subject at least they do aknowledge there a problem2003 Subaru Impreza F4-2.5L SOHC
    Vehicle Level Technical Service Bulletins All Technical Service Bulletins Electrical - Parasitic Battery Draw Information


    Electrical - Parasitic Battery Draw Information
    Notes

    NUMBER: 07-62-07

    DATE: 01/17/08

    APPLICABILITY:
    All Models

    SUBJECT:
    Dark Current or Excessive Battery Draw

    INTRODUCTION

    The purpose of this bulletin is to provide the diagnostic procedure when checking for excessive battery draw

    REPAIR PROCEDURE/INFORMATION

    PRIOR to beginning the test:

    ^ Be certain the vehicle battery is fully charged

    ^ The battery posts and cable ends are free of corrosion, dirt, sealer, and in good condition.

    ^ Be sure to record the customer's radio station, and satellite radio station pre-sets as they will be lost during the test, along with any seat memory settings.

    ^ You may NOT use an aftermarket 9V memory device in the power outlet to retain any ECU memory.

    ^ Any aftermarket accessories will also need to be disconnected. These items will affect the test results and may cause false readings or misdiagnosis.


    Items required for test:

    ^ Pen and paper for recording radio and satellite radio pre-sets

    ^ Digital Volt Ohm Meter

    ^ 10 MM wrench

    ^ 16 gauge by-pass wire, about 12 inches long, w/ proper securing attachments at each end


    Test Procedure:

    1) Remove battery negative cable

    2) Connect one end of by-pass wire to the battery's negative post then connect the other end to negative battery cable end Simply wrapping then twisting the stripped back ends of the by-pass wire around the post and terminal will be sufficient Reinstall the negative cable on the battery post

    3) Wait 5 minutes before proceeding to the next step. This will allow the system voltage to stabilize. During this time, be sure the glove box door, trunk, tailgate, and all vehicle doors are closed and their corresponding lamps are off. Also, be sure that the head lamps, fog lamps, and all switches are off. The ignition key needs to be removed, and the doors must be locked (make sure not to lock the keys in the car). Remove the negative battery cable, making sure the by-pass wire has not lost contact. If contact is lost, you will need to start at step # 2 again.

    4) Make sure your voltmeter is set to milliamp (mA) setting. Connect the test leads of your voltmeter to the negative battery cable and the negative battery post. Remove the by-pass wire you installed in steps # 2 and # 3 and measure the current draw.

    After the 5 minute stabilization period, the measured draw should be a maximum of 150 milli-amps. This maximum draw value is read with the key out of the ignition switch.

    If your results are greater than the above specification, further diagnosis will be necessary to determine the source of the excessive current draw. This should be done using normal electrical circuit testing until the source of this excessive draw is determined and repaired.

    After confirming the repair, the customer's radio presets and clock time should be reset properly.


    Hope this helps
    Eric
    AMS
    5-axis cnc cylinder head porter
    master machinist/engine builder
    1-800-210-8675

  6. #6
    tefgdfms
    Guest

    Default

    Quote Originally Posted by Roze View Post
    You thought of, it may be have short cut some where sound maybe it is the reason but you know the electricity get to that point. It will be better getting rid of car
    Here is what Subaru says about the subject at least they do aknowledge there a problem2003 Subaru Impreza F4-2.5L SOHC
    Vehicle Level Technical Service Bulletins All Technical Service Bulletins Electrical - Parasitic Battery Draw Information

  7. #7
    Noobinator
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    Default ?

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