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Subaru lmpreza, replaced battery..still won't start

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  • 16-11-2009 1:30pm
    #1
    furiousox
    Registered Users Posts: 6,949 ✭✭✭


    l have a yr 2000 1.6 impreza which l've owned for about 6 months and its running fine overall.
    The only problem is that sometimes it won't start in the mornings and the only way to get it going is to give it a tow and a 'jumpstart'.
    l've replaced the cold start sensor and the battery but the problem remains, any ideas?

    CPL 593H



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    #2
    Seth Brundle
    Moderators, Politics Moderators Posts: 39,362 Mod ✭✭✭✭Seth Brundle


    Get it diagnosed for any faults


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    #3
    Anan1
    Registered Users Posts: 22,815 ✭✭✭✭Anan1


    Will it not turn over at all, or slowly? Starter motor?


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    #4
    furiousox
    Registered Users Posts: 6,949 ✭✭✭furiousox


    Anan1 wrote: »
    Will it not turn over at all, or slowly? Starter motor?


    lt turns over fine, chugs away but won't start.
    lt's random too, somedays it starts first time.
    l had it in the garage when the problem first started and they diagnosed and replaced the cold start sensor.

    CPL 593H



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    #5
    unkel
    Registered Users Posts: 65,212 ✭✭✭✭unkel
    Chauffe, Marcel, chauffe!


    furiousox wrote: »
    lt turns over fine, chugs away but won't start.
    lt's random too, somedays it starts first time.

    I had very similar symptoms (intermittent starting problem) and it turned out to be a bad connection on the fuel pump relay. Check the relevant fuses too.


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    #6
    Darsad
    Registered Users Posts: 679 ✭✭✭Darsad


    When you say cold start sensor I am assuming you mean the coolant temp sensor . Was this replaced for a reason or just to try , I say this because your mechanic or dealer should have had a reason to replace it such as it reading -40 deg c which is open circuit did they even have or use a scan tool to read the parameters . I cant understand this guessing and or swapping diagnosis that many garages try at customers expense a sensor either reads correctly or it doesent .


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    #7
    furiousox
    Registered Users Posts: 6,949 ✭✭✭furiousox


    Darsad wrote: »
    When you say cold start sensor I am assuming you mean the coolant temp sensor . Was this replaced for a reason or just to try , I say this because your mechanic or dealer should have had a reason to replace it such as it reading -40 deg c which is open circuit did they even have or use a scan tool to read the parameters . I cant understand this guessing and or swapping diagnosis that many garages try at customers expense a sensor either reads correctly or it doesent .


    I'd never heard of a 'cold start sensor' before this episode.
    I think they kinda went 'sounds like your sensor's faulty' and replaced it.

    CPL 593H



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    #8
    Muckie
    Registered Users Posts: 1,763 ✭✭✭Muckie


    Maybe try theses lads www.isdc.ie, if its Subaru they'll
    know. Strange how the garage replaced the engine temp sensor
    and its still not starting properly. Did they do a diagnostic check,
    this is my guess could be the crank sensor thats at fault.
    Are all the earths good, Subarus have quite a few on there engines.


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