Just Commodores Forum Community

It takes just a moment to join our fantastic community

Register

Takes a lot of cranking to start VT v6. 1998

Discussion in 'VT - VX Holden Commodore (1997 - 2002)' started by No eye deer, Dec 28, 2014.

  1. No eye deer

    No eye deer New Member

    Messages:
    39
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Nov 10, 2013
    Location:
    South Australia
    Members Ride:
    VZ Berlina 2005
    Hey fellas,
    My son has a VT v6. Manual-extractors-2.5" exhaust. new coil packs-plugs-leads.270k's
    Battery is good.
    Goes BLOODY quick!!
    Runs well,no misses.
    No fault codes showing.

    BUT- It takes 3-4 seconds of cranking before it starts. Hot or cold. He "primes" the pump before starting. Tried pushing the key in fairly hard, when starting.
    Still the same.
    Your thoughts on this?

    Thanks!! :)

    Connors old man.
     
  2. Wombles

    Wombles Cars cost too much.

    Messages:
    2,064
    Likes Received:
    3
    Trophy Points:
    38
    Joined:
    Oct 28, 2009
    Location:
    Gippsland
    Members Ride:
    '72 LJ Torana, '95 VS Acclaim and V8 wagon
    Probably just an old starter moving slower than usual.
     
  3. devilly

    devilly Guest

    mine got slower and harder to start when the bcm and ecu where on there way out.check wiring to starter motor and check wiring to alternator and also check earth wiring from battery.disconnect battery, check the nuts are tight, there's no melting on the wires,and you cant pull the wires out of the connectors.i always start with whats the cheapest and then move up the list on ideas :) :) start relay swap with another one and see if it makes a difference.
     
  4. Pollushon

    Pollushon Boost gives me a bar....

    Messages:
    2,070
    Likes Received:
    119
    Trophy Points:
    63
    Joined:
    Nov 9, 2012
    Location:
    Canberra
    Members Ride:
    VY SS
    Could also be a loss of fuel pressure due to a minute air leak (sealed systems), charcoal canister/purge solenoid issue or tired pump.

    I had the same thing with my VS, but when I put the blower on I replaced the pump (gasket as well), reg and most of the lines - problem went away.
     
  5. lout

    lout Well-Known Member

    Messages:
    2,213
    Likes Received:
    225
    Trophy Points:
    63
    Joined:
    May 13, 2006
    Location:
    Langwarrin Victoria
    Members Ride:
    VX Executive S2
    if you start car, let it idle for 30 seconds then switch off
    does it start immediately or still 3-4 seconds cranking
    1st thing in morning if you turn to reds, wait 30 seconds, turn off, repeat immediately,
    then start, does it start straight away or still 3-4 seconds
    how is it maintained
    serviced religiously every 10k with quality parts, or cheapest parts available
     
  6. BlackoutSteve

    BlackoutSteve Member

    Messages:
    409
    Likes Received:
    3
    Trophy Points:
    18
    Joined:
    Jan 5, 2014
    Location:
    Melbourne
    Members Ride:
    WH Caprice LS1
    If you have a spare key, just give it a try..
    Sometimes the key fob connection is not great and can lead to excessive cranking. This solved excessive cranking in a friend's VS.
     
  7. amg

    amg New Member

    Messages:
    54
    Likes Received:
    3
    Trophy Points:
    0
    Joined:
    Apr 2, 2014
    Location:
    Melbourne
    Members Ride:
    Holden
    Fuel filter. Maybe sometime in the recent past yer sprog put in some crap fuel that blocked the filter.

    I was changing the diff oil the other day and while I was under there checked the fuel lines, charcoal canister and changed the fuel filter. The car now starts on the first crank stroke.
     
  8. No eye deer

    No eye deer New Member

    Messages:
    39
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Nov 10, 2013
    Location:
    South Australia
    Members Ride:
    VZ Berlina 2005
    Thanks fellas!!
    I"ll wait till he gets out of bed - and check to see if he's done the fuel filter since he's had it.
    It turns over quite well- the battery sounds good. I'll check the restart after 30 seconds too. Forgot to check that.
    I'll get back to ya'all!
    Thanks
    Mark
     
  9. Jxfwsf

    Jxfwsf Well-Known Member

    Messages:
    4,852
    Likes Received:
    89
    Trophy Points:
    48
    Joined:
    Feb 20, 2011
    Location:
    Aus
    Members Ride:
    commodore
    It won't be the keyfob/security, if it was it wouldn't crank (that's how it works in a VT).

    Check all the piping around the intake for cracked or perished hoses (or has something fallen off over time)
    Pull a small vac hose off the manifold somewhere and spray some carby cleaner in (idea here is to get it into the manifold) quickly put the hose back where it went and try to start. Does it fire up quicker, start and stop, take the same amount of time cranking?
    Don't do this on a stinking hot engine.
     
  10. No eye deer

    No eye deer New Member

    Messages:
    39
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Nov 10, 2013
    Location:
    South Australia
    Members Ride:
    VZ Berlina 2005
    If its run for a few minutes, switched off and restarted- it starts quick. Fuel filter is new. Fuel ATM is 98 Ron.
     
  11. Lex

    Lex Active Member

    Messages:
    899
    Likes Received:
    185
    Trophy Points:
    43
    Joined:
    Sep 19, 2012
    Location:
    Geelong Victoria
    Members Ride:
    VT Executive S1 V6 Auto Wagon
    Hi
    Sounds to me its fuel pump.
    Lex
     
  12. lout

    lout Well-Known Member

    Messages:
    2,213
    Likes Received:
    225
    Trophy Points:
    63
    Joined:
    May 13, 2006
    Location:
    Langwarrin Victoria
    Members Ride:
    VX Executive S2
    did you try turn to reds wait 30 seconds, turn off, then turn to reds again, wait 30 seconds, turn off, then start
     
  13. No eye deer

    No eye deer New Member

    Messages:
    39
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Nov 10, 2013
    Location:
    South Australia
    Members Ride:
    VZ Berlina 2005
    Yep, lout. Tried that. Fuel pump runs ok, by the sound of it. It does start quicker if he turns the engine off, and restarts soon after. I dont have a fuel presure gauge, so cant check that. I may try running a jump start battery to it. Although the battery sounds good, and is new. Maybe extra juice to the starter will show something up. I'll check the vacuum hoses with a spray can, later.
    He's just done a Cairns to Renmark drive,(with no issues, except the slow start) so it should be fairly clean in there.
    It does go pretty quick for a v6, just slow to start. Strange problem.
    Mark
     
  14. devilly

    devilly Guest

    with the relays under the hood there is a start relay,i took out the low fan relay to test it,i put it in the start relay position,the relay was that shot my car wouldn't start.could try swapping them and see if its the relay on it's way out.check the wires to starter motor and battery terminals are all tight and have no play or movement.you could put in fuel injector cleaning in the fuel tank.for vacuum leaks check the back of the plenum 3 hoses there are always causing problems.does the car key fob unlock the car ?
     
  15. lout

    lout Well-Known Member

    Messages:
    2,213
    Likes Received:
    225
    Trophy Points:
    63
    Joined:
    May 13, 2006
    Location:
    Langwarrin Victoria
    Members Ride:
    VX Executive S2
    ok wont be fuel related if turning to reds did not mke it start quicker
    try putting on a battery charger for a couple of hours then try to start and see if it starts quicker
    as soon as it starts does it idle correctly
     
  16. No eye deer

    No eye deer New Member

    Messages:
    39
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Nov 10, 2013
    Location:
    South Australia
    Members Ride:
    VZ Berlina 2005
    OK- will do those things today. Got to tighten up ALL his tailshaft bolts today. Who'd have thought that Super Glue isnt a direct replacement for Loc-tite, and a torque wrench, eh!!

    Mark
    Thanks fellas!!
     
  17. No eye deer

    No eye deer New Member

    Messages:
    39
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Nov 10, 2013
    Location:
    South Australia
    Members Ride:
    VZ Berlina 2005
    I have found that the pipe going from the back/side (pass. side) of the plenum, to an EGR valve? then to the extractors appears blocked. It appears to be deliberately closed ,somehow. Where the steel pipe meets the plenum, the hole has been welded closed. I'm guessing theirs a reason for this.
    Mark
     
  18. devilly

    devilly Guest

    need a picture :) to fully understand what you mean :)
     
  19. amg

    amg New Member

    Messages:
    54
    Likes Received:
    3
    Trophy Points:
    0
    Joined:
    Apr 2, 2014
    Location:
    Melbourne
    Members Ride:
    Holden
    EGR valve and IAC valve are open when engine is started, both feed the plenum chamber and are controlled by the ECU. Dunno whether the EGR valve plays any part in getting the engine turning, doubt it. I'd look at cleaning the IAC valve and its chamber with carbi cleaner as these ecotecs get very sooty inside the plenum chamber.

    I still reckon it's fuel related but now that you've found the welded shut pipe and super glue it could almost be any bastardised hack by the previous owner(s) including a badly configured mem-cal.
     
  20. Jxfwsf

    Jxfwsf Well-Known Member

    Messages:
    4,852
    Likes Received:
    89
    Trophy Points:
    48
    Joined:
    Feb 20, 2011
    Location:
    Aus
    Members Ride:
    commodore
    Quite alot of aftermarket headers are setup like that, not going to cause your starting issue if the egr is closed off (simply i'd ignore that and not play around with it)
     

Share This Page