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Thread: VW Passat 1.9 TDI Poorr starting

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  1. VW Passat 1.9 TDI Poorr starting 
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    I have a 2001 VW Passat 1.9 tdi. It starts OK when the engine is warm or when the weather is warm, but if it has been lying a few days or it's cold weather, it won't start without a jump or bump. I've changed the glow plugs so it's not them. Anyone got any idea what I can try next? Battery and alternator are both good, by the way.
     
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  2. Re: VW Passat 1.9 TDI Poorr starting 
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    You'll run out of money before you run out of guesses :P have it diagnosed.
     
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  3. Re: VW Passat 1.9 TDI Poorr starting 
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    You could try coolant temp sensor
    eye for an eye means the whole world goes blind
     
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  4. Re: VW Passat 1.9 TDI Poorr starting 
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    My pd130 started perfectly when the cts sensor was totally kaput, and no different when a new one fitted, so I would discount that.
     
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  5. Re: VW Passat 1.9 TDI Poorr starting 
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    I guess that depends what was wrong with, and the readings it was supplying to the ECU .

    OP what happens when you try to start it from cold?.....just turns over? Or not at all?

    Ian
    A4 Avant 3.0TDi Auto Quattro
     
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  6. Re: VW Passat 1.9 TDI Poorr starting 
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    It turns over but won't start. The battery flattens pretty quickly and then all sorts of things happen. Alarm goes off and the tailgate unlocks. I park on a brae (hill) and bump-start it on those days, and it starts no bother that way
     
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  7. Re: VW Passat 1.9 TDI Poorr starting 
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    Which suggests your battery is at the end of its life.
     
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  8. Re: VW Passat 1.9 TDI Poorr starting 
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    Could be air getting in to the fuel lines.

    Ian
    A4 Avant 3.0TDi Auto Quattro
     
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  9. Re: VW Passat 1.9 TDI Poorr starting 
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    Try cleaning battery terminals and posts with sandpaper,also the earth at engine / gearbox.
    Is it possible to try a known good battery to see if problem still exists.
    Another thing to try is removing earth connection from battery when parking for a long period,this would be to see if you have a battery drain.
     
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  10. Re: VW Passat 1.9 TDI Poorr starting 
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    When was the cambelt last changed?
    get someone with Vcds and check the torsion value It could be out and causing poor starts


    http://www.myturbodiesel.com/wiki/ca...d-tdi-engines/
    eye for an eye means the whole world goes blind
     
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