4 problems on 1 car in 2 days. All seemingly unrelated?
4 problems on 1 car in 2 days. All seemingly unrelated?
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vit4

Original Poster:

3,507 posts

193 months

Tuesday 26th October 2010
quotequote all
If anybody who is mechanically minded can make any connection please feel free. frown Car is a 1990 Astra.

First a couple days ago, it refused to start. Turned out to be a flat battery, had drained itself within a day. No idea why and hasn't done it since, nothing was left on. Then an air hose liberated itself of its jubilee clips, but to be fair it looks like the original jobby and is a bit worn. Back on tight now and was running fine.

But nonono, car wasn't done. Just on a short (3-4 mile) journey home, it kept 'kicking'; it felt like either dipping the clutch slightly and slipping my foot off the side, or like the fuel was being cut off very briefly (fraction of a second, but enough to make a jolt. All under 30 mph). Possibly a misfire? Never experienced what they feel like or if you notice them though? Or transmission related? Clutching at straws really frown Car has under 1/4 of a tank but I've run it below the red before without problems and I was under the impression the 'crap in fuel' was an urban myth?.

Oh, and a big cloud of steam sitting in traffic a mile up the road from the above. Just one burst though, came from the front end of the bonnet and right hand side. Car wasn't running hot by any means, barely off the 'blue' on the temperature gauge. Pulled to the pavement with the engine still running. Couldn't see anything leaking, still had the correct amount of coolant in it confused Only thing that's just came to my mind is that it had radiator sealant pumped through earlier in the year, although I would've thought if that had broken it would be losing coolant?




Even I'm struggling to believe this many faults in the space of a couple of days on a car that's run otherwise perfectly can be coincidence, but I can't see anyway they could be related? If anybody can, I'd be very grateful frownfrownfrown

The car is a few miles over when the last service was due, but literally under 30 miles over and it's already booked in for a full service on Monday. Starting to dread what's going to be found lol frown

Blakeatron

2,556 posts

196 months

Tuesday 26th October 2010
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Nothing to do with it getting colder - more wear and tear on all componants?

binlicker

377 posts

185 months

Tuesday 26th October 2010
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First incident unrelated.

Everything thereafter probably is, possible head gasket, or perhaps a coolant leak. Car has over heated hence the poor running, a car air locked or with air in the cooling system won't always register as running hot as there is no hot water round the temperature sender to register a reading. Double check you have sealed the system completely, that the system is full of water and that there are no air pockets in your cooling system. Are your heaters getting warm?


ETA Oops read OP wrong, thought you said water hose, not air hose, could still be the case though......

Edited by binlicker on Tuesday 26th October 20:18



ETA2 first port of call would still be head gasket

ETA3 to tell you that if there is air elsewhere in the coolant system it could still register as full in the header tank.

Edited by binlicker on Tuesday 26th October 20:20


Edited by binlicker on Tuesday 26th October 20:22

rb5230

11,657 posts

195 months

Tuesday 26th October 2010
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you have "booked in" a 1990 astra for a service? surely worth more than the car. chuck it away and get another.

vit4

Original Poster:

3,507 posts

193 months

Tuesday 26th October 2010
quotequote all
binlicker said:
First incident unrelated.

Everything thereafter probably is, possible head gasket, or perhaps a coolant leak. Car has over heated hence the poor running, a car air locked or with air in the cooling system won't always register as running hot as there is no hot water round the temperature sender to register a reading. Double check you have sealed the system completely, that the system is full of water and that there are no air pockets in your cooling system. Are your heaters getting warm?
Heaters getting very warm very quick, as per normal. Am I right in thinking HGF would present itself as mayo under the oil cap, or is that just not universal with all failures? Coolant leak would make sense but it isn't actually losing any.

vit4

Original Poster:

3,507 posts

193 months

Tuesday 26th October 2010
quotequote all
rb5230 said:
you have "booked in" a 1990 astra for a service? surely worth more than the car. chuck it away and get another.
hehe Useful advice, but not quite what I'm after.

Gradually teaching myself how to work on it, but as I rely on it quite heavily and it has (until now) proven to be more reliable than most cars half its age, I don't yet trust myself doing the full services. nerd


If it starts to become a problem regularly, then it'll be sorned and when money permits a sleeper will be built biggrin Until then I'm just going to look after it until I can afford something decent as a daily smile No point running it into the ground for the sake of it, imo anyway smile

binlicker

377 posts

185 months

Tuesday 26th October 2010
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vit4 said:
binlicker said:
First incident unrelated.

Everything thereafter probably is, possible head gasket, or perhaps a coolant leak. Car has over heated hence the poor running, a car air locked or with air in the cooling system won't always register as running hot as there is no hot water round the temperature sender to register a reading. Double check you have sealed the system completely, that the system is full of water and that there are no air pockets in your cooling system. Are your heaters getting warm?
Heaters getting very warm very quick, as per normal. Am I right in thinking HGF would present itself as mayo under the oil cap, or is that just not universal with all failures? Coolant leak would make sense but it isn't actually losing any.
Not always the case, if the head gasket hasn't failed between an oil gallery and a water channel then there won't be any emulsification (mayo) present in the header tank or under the oil cap. If you've only blown the HG between the water jacket and a cylinder then you possibly won't get any clear signs. The engine will pressurise the water jacket to replace the water you have lost and won't always be immediately apparent by the water level in the header tank. This would still be my first port of call, especially on a 20 year old vauxhall. Although I wouldnt expect the heaters to still be getting warm, although that may develop depending on how big and whereabouts in the cooling system the air lock could currently be.

munroman

1,904 posts

207 months

Tuesday 26th October 2010
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Flat battery, I had a car which did that, but only when I REALLY needed the car, never found what was wrong, are you sure things like the boot were closed fully?

As for the kicking, maybe ignition leads needed a spray with WD40 or the like, try running the engine with the bonnet up at night and see if you see blue sparks. If you do, a new set of ignition leads are worth getting, change one at a time so that you don't mix up the pattern - a world of pain otherwise!

Also, check that the earth lead between engine/gearbox is in good nick, as I had a 'stuttering' problem with a car which turned out to be this.

As regards the big cloud of steam, sometimes in cold wet weather the radiator fins are damp on the outside (was it raining/damp when this happened?), the engine heats up enough to send warm water to the radiator, and if you are sitting stopped, suddenly there is a big cloud of 'steam', which always looks worse at night.

If there is antifreeze in the engine and it was think there will be a strong smell in the engine compartment.

Good luck, we all had to learn!

vit4

Original Poster:

3,507 posts

193 months

Tuesday 26th October 2010
quotequote all
munroman said:
Flat battery, I had a car which did that, but only when I REALLY needed the car, never found what was wrong, are you sure things like the boot were closed fully?
Haha smile Always the way! But to be honest, there are hardly any electrics on the car like that; boot light is disconnected and was shut properly anyhow. Interior light was off. Radio & everything was off. Half hour charge, jump start and 20-30 minutes running and it was back putting out 10-11 volts confused Very random. It's been fine since too.

munroman said:
As for the kicking, maybe ignition leads needed a spray with WD40 or the like, try running the engine with the bonnet up at night and see if you see blue sparks. If you do, a new set of ignition leads are worth getting, change one at a time so that you don't mix up the pattern - a world of pain otherwise!

Also, check that the earth lead between engine/gearbox is in good nick, as I had a 'stuttering' problem with a car which turned out to be this.
Would've noticed sparks when I stopped after the steam; was dark and was poking about for a good few minutes with the engine still running. Will check the earth in the morning smile

munroman said:
As regards the big cloud of steam, sometimes in cold wet weather the radiator fins are damp on the outside (was it raining/damp when this happened?), the engine heats up enough to send warm water to the radiator, and if you are sitting stopped, suddenly there is a big cloud of 'steam', which always looks worse at night.

If there is antifreeze in the engine and it was think there will be a strong smell in the engine compartment.
Ahhh biggrin This could explain it very nicely. Night and tipping it down, also had the bonnet up earlier the day checking the air hose was still tight so that would make sense. Thank you biggrin

munroman

1,904 posts

207 months

Tuesday 26th October 2010
quotequote all
If you are only seeing 10-11 volts with the engine running after 1/2 an hour that points to a dodgy battery or alternator, it should be well over 12 volts, sometimes as high as 14+.

If the Earth lead is ok, then that points to the above, that might also lead to problems with the ignition, as the voltage is too low to get a decent spark.