1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. It's been bought to our attention that certain users are spamming new and existing users with links to their own websites. This is not permitted on VxON.
    Should you receive such a message, please report this using the 'Report' link you will find at the bottom of the message.
    Those users will then be dealt with accordingly.
  3. Use The Search Function That's what It is There For!
    The chances are that the post you are about to make has already been asked so USE the search function first! You can either search JUST this forum by clicking on the search button on the top right (under the page numbers) or click on the main search button that is on the top tool bar.
    This will save you time and stop the same duplicate posts from appearing.

[Astra Mk4/G] [98-04] White smoke/steam....head gasket?

Discussion in 'Astra, Corsa, Zafira, Meriva, Adam, Agila, Tigra & Nova [Includes AstraVan & ComboVan] owners forum' started by torrent99, Feb 21, 2011.

  1. torrent99

    torrent99 Member

    Messages:
    26
    Likes Received:
    0
    Location:
    London
    Hi,

    Can anyone help me diagnose the white steam coming out my exhaust???


    Symptoms:

    AFTER WARMING UP a quick blip of the accelerator will prompt a fairly large puff of steam out of the exhaust, occasionally with spitting and the odd (rare) misfire.

    I emphasise this is after warming up to the point where sitting at idle it's fairly clear (not completely), a good rev on the engine and clouds of steam come out and the idle goes to a stream of steam.

    I've confirmed it's steam with a sheet of cardboard.

    I thought it was condensation but it's still there even after 30-40mins of travelling, and the temp reading 90ish.

    Can't really detect any coolant loss, or overheating.

    History:

    Just before Xmas noticed that the coolant was low (bottom of the expansion tank) so topped up. Didn't notice any loss of coolant over Xmas despite travelling from London->Devon->liverpool->manchester->lincoln->London.

    Broke down in Jan, but seemed unrelated. Muppet garage changed every sensor under the sun, (coolant temp, crankshaft & MAP) before they got it going. No remarks about smoke/steam or coolant loss.


    Cheers

    Steve
     
  2. Andyphotography

    Andyphotography New Member

    Messages:
    19
    Likes Received:
    0
    Location:
    Cardiff, United Kingdom, United Kingdom
    Take off the oil filler cup, any white discharge so to speak?
    My 1998 Astra 1.4 Mk 4 went through 3 head gaskets, only did 130k.
     
  3. cavwebmaster

    cavwebmaster CavWeb/VxON Forums Admin & Founder Staff / Administrator VxON Club Member

    Messages:
    27,412
    Likes Received:
    439
    Location:
    Nottingham
    Drives:
    Modified Astra H Sporthatch 150 CDTI
    It sounds like the head gasket to me but you said it is not loosing coolant which I would expect. Mind you, maybe only a few drops are getting into one cylinder so you might not notice that much. What you really need to do is get a compression tester as if there is a crack in the head gasket one cylinder 'should' be down on compression compared to the others.
     
  4. Andyphotography

    Andyphotography New Member

    Messages:
    19
    Likes Received:
    0
    Location:
    Cardiff, United Kingdom, United Kingdom
    The last time my head gasket went it only lost a very slow trickle of coolant:(
     
  5. torrent99

    torrent99 Member

    Messages:
    26
    Likes Received:
    0
    Location:
    London
    thanks guys. it sounds like my suspicions may be correct.
    re: mayo there's a little on the filler cap, bit no more than the amount you'd get from lots of idling in damp weather like I've being doing trying to diagnose this. the dipstick has nice clean oil, no mayo. there's also no sign of oil in the coolant. (although I've been flushing that at the mo so its hard to tell, what I removed didn't have any ) would a compression test show anything at this early stage? the engine idles well and there's no loss of power.

    anyone have any idea how much this may cost to put right on a 1.6 8v z16se? assuming the worst case...
     
  6. erroneusbogz

    erroneusbogz Well-Known Member

    Messages:
    11,096
    Likes Received:
    486
    Location:
    manchester
    a garage can do a sniff test for you,or you can buy the kit off ebay,any hydro carbon in the coolant will give you a positive answer about a head gasket,when you take it appart if you have too,make sure you get the head skimmed,or you will be doing again sooner rather than later
     
  7. erroneusbogz

    erroneusbogz Well-Known Member

    Messages:
    11,096
    Likes Received:
    486
    Location:
    manchester
  8. cav TD gls

    cav TD gls Well-Known Member

    Messages:
    6,862
    Likes Received:
    100
    Location:
    county durham uk
    Drives:
    2003 Vectra 2.0 DTi Elite
    a Z16SE will nearly always have mayo under the oil cap , they are famous for it .
    keep a close eye on the water & see what happens , could be nothing .
     
  9. dundeepeh

    dundeepeh Member

    Messages:
    52
    Likes Received:
    4
    Location:
    Forfar Angus
    Drives:
    Vauxhall corsavan 1.3cdti / Volkswagen passat cc 2.0td 170 bhp
  10. torrent99

    torrent99 Member

    Messages:
    26
    Likes Received:
    0
    Location:
    London
    Yes I've seen that stuff. Have considered using it too... the reports though are mixed, and it's hard to sort the obvious plants, from the genuine pleased users, from the horror stories with an axe to grind, from the mechanics who fear their livelihood taken away, from the old timers who confuse it with Radweld etc. etc.
    Same with KSeal and similar products...

    If the positive reports are to be believed my car would be a good patient for this treatment, what with the crack being small at the moment. Trouble is I'm fearful it will kill my waterpump (there are a few reports of this possibly coincidence though), which on an 8V is no trivial job to swap out.

    If I did do it I'd find some way to isolate the heater matrix first.... (It'd be great to isolate the radiator too, but that might be a bit dangerous?)
     

Share This Page