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2000 VS Ute struggling to start when cold

Discussion in 'VR - VS Holden Commodore (1993 - 1997)' started by Andyp3, Nov 8, 2019 at 3:35 PM.

  1. Andyp3

    Andyp3 New Member

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    Hey all,

    I’ve got a VS Ute that’s struggling to start when cold. It can take 1-2 minutes of cranking when cold to start. Once it’s been running for a few seconds, if you turn it off and on again it fires up immediately. The engine runs perfectly once it starts.
    I’ve replaced the plugs and leads, run injector cleaner through it, and done some long trips with premium 98 in it. Car has done 180,000kms.

    Any suggestions what it could be? I’m thinking fuel pump, but not certain. Any tests I can do to check?
    Thanks lads
     
  2. losh1971

    losh1971 Well-Known Member

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    Could be a battery issue if its a V6. Mine did a similar thing, not 1-2 minutes though as that would have flattened the battery. Try charging the battery overnight and see if it improves.
     
  3. commodore665

    commodore665 expat Saffa

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    try cleaning the terminals on the battery , or as above charge over night .
     
  4. immortality

    immortality Home of the smoky breakfast Bacon! Staff Member

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    Check the fuel pressure. Does the fuel pump prime when you turn the ignition on?
     
  5. commodore665

    commodore665 expat Saffa

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    or this ^^^
     
  6. Andyp3

    Andyp3 New Member

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    Battery is fully charged, and issue is still persisting.
    It’s thrown some error codes, which are 46 and 49.

    I don’t suspect fuel pump as it runs perfectly once it’s started. The pump primes when the ignition is turned. I did a trip from Sydney to Melbourne in it last weekend - no issues there.

    I’m thinking crank angle sensor, coil packs or dfi. Any suggestions to rule each of these out?
     
  7. losh1971

    losh1971 Well-Known Member

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    Cam sensor and or crank sensor. Crank sensors can have some intermittent problems before failing altogether. Could also be a problem with DFI as code 46 is sometimes related to DFI. I'd be inclined to start with replacing the crank sensor as they eventually fail regardless and its only a matter of time before it does fail. It would be worth cleaning the DFI plug and checking the harness.
     
  8. immortality

    immortality Home of the smoky breakfast Bacon! Staff Member

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    Probably should have led with the fault codes...
     
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  9. Trevor loves holden.

    Trevor loves holden. Well-Known Member

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    When was the fuel filter last replaced? Try turning the key on and off a few times without starting it first, then start it and see if it starts quicker when cold.
     
  10. Trevor loves holden.

    Trevor loves holden. Well-Known Member

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    You can test the leads for spark with a tester when cold to see if they are sparking..
    If it was any of these then it would play up while driving too, CAS fail when hot most times so I rule that out, could be a bad earth but sound more likely fuel pressure related.
     
  11. losh1971

    losh1971 Well-Known Member

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    My last CAS fail occurred intermittently. Engine would stop when hot and driving for 45 mins, other times it would fail five mins after starting.
     
  12. losh1971

    losh1971 Well-Known Member

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    While its a good idea to swap fuel filters as part of regular maintenance. The OP mentioned two codes. I think that's a pretty good indication he has a problem with the ignition system somewhere. ;)
     
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  13. immortality

    immortality Home of the smoky breakfast Bacon! Staff Member

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    ^^^^ This :)
     
  14. Trevor loves holden.

    Trevor loves holden. Well-Known Member

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    Before wasting money on a new CAS get the codes cleared first to see if they come back, if you drove from Sydney to Melbourne then its not your CAS it would of failed in that trip, if anything it be a bad contact or a wire on your DFI plug which is throwing the code, look at those pins in the DFI plug they can bend and make a bad contact, like was said above give it a good clean with contact cleaner. His a link on testing your system, https://www.google.com/url?sa=t&rct...e_Manual.pdf&usg=AOvVaw25UkWBcLeiUsL0vJ7WQXQp
     

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