Car mechanics of EG

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  • sport 10 Nov 2013 09:15:19 12,758 posts
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    General thread for car related issues.

    Quick question, a friend has asked if I can give him a jump start later today. He recently bought an old Scirocco - early 80's model. Thing wouldn't start yesterday.

    I've got a brand new tiny Aygo (lease car). I've done jumpstarts in the past (with older car) but I'm a little weary of it this time. Reading up, some info suggests there might be different voltages involved and/or electrical issues in the old car could damage my own.

    I really don't want to chance anything as it's a lease car, but I'd like to know if there's really anything to worry about.
  • Kosmoz 10 Nov 2013 09:24:26 7,701 posts
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    I don't know the answer to yr question, but I do know that you can fit 4747 bananas in to an Aygo. I hope this helps.

    Every girl I ever kissed I was thinking of a pro footballer.

  • Moot_Point 10 Nov 2013 09:27:00 4,185 posts
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    If it is a smaller engine sized car you are 'jumping' with, it will take a while before you are able to start the Scirocco. How long has the Scirocco been standing without charge?

    Edited by Moot_Point at 09:27:33 10-11-2013

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    mowgli wrote: I thought the 1 married the .2 and founded Islam?

  • sport 10 Nov 2013 09:30:30 12,758 posts
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    He bought and drove it from Kent to NW London on Monday night so I assume it started ok then. I'm pretty sure the engine is much bigger than mine.
  • Moot_Point 10 Nov 2013 09:40:36 4,185 posts
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    If you keep the engine turned over, it should reduce the risks. But a 2L engine would be a minimum requirement before I would risk a jump. Isn't the thinking "fuck it, its a rental" :D

    Edit: It may be worth getting new spark plugs, unless they are new.

    Edited by Moot_Point at 09:42:48 10-11-2013

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    mowgli wrote: I thought the 1 married the .2 and founded Islam?

  • Kosmoz 10 Nov 2013 09:47:31 7,701 posts
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    Well he has a one litre engine in his Aygo, so I take it you wouldn't recommend trying to jump it?

    Every girl I ever kissed I was thinking of a pro footballer.

  • Moot_Point 10 Nov 2013 09:49:26 4,185 posts
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    Well no I wouldn't really recommend it with a 1L car.

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    mowgli wrote: I thought the 1 married the .2 and founded Islam?

  • OptimusPube 10 Nov 2013 09:50:49 3,078 posts
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    It doesn't matter what engine size either is, just keep the engine running and don't mix the polarities.

    You better watch out.
    You better beware.
    Albert said E=MC˛

  • Kosmoz 10 Nov 2013 09:51:56 7,701 posts
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    Having said that, I did recently use an Aygo to jump start a 2 litre diesel Verso and it work just fine. They were both brand new cars though.

    I should probably have opened with this rather than the thing about bananas, shouldn't I?

    Edited by Kosmoz at 09:55:18 10-11-2013

    Every girl I ever kissed I was thinking of a pro footballer.

  • craigy Staff 10 Nov 2013 09:52:05 7,693 posts
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    Sounds a bit risky. Props to your mate for buying an old Scirocco! They're great.
  • Kosmoz 10 Nov 2013 09:54:47 7,701 posts
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    If you don't mind me asking sport, how much/over how long is the lease for the Aygo?

    Every girl I ever kissed I was thinking of a pro footballer.

  • OptimusPube 10 Nov 2013 09:57:15 3,078 posts
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    Kosmoz wrote:
    Having said that, I did recently use an Aygo to jump start a 2 litre diesel Verso and it work just fine. They were both brand new cars though.

    I should probably have opened with this rather than the thing about bananas, shouldn't I?
    You're just a big daft ginger wookie aren't yer.

    You better watch out.
    You better beware.
    Albert said E=MC˛

  • Kosmoz 10 Nov 2013 09:59:24 7,701 posts
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    I'm much less of a wookie these days. Nae beard. Less hair. Still ginger though.

    Every girl I ever kissed I was thinking of a pro footballer.

  • sport 10 Nov 2013 10:02:15 12,758 posts
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    Still got 18 months on the lease.

    I'm more worried about dodgy electrics in his car "doing something" to mine - I dunno how this sorcery works.
  • Moot_Point 10 Nov 2013 10:13:44 4,185 posts
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    Well like I said, I personally wouldn't risk it with anything under 2L.

    Also, with those old cars it's best to change the spark plugs, distributor cap and air filter. A basic service any responsible motorist should be able to do.

    Edit: If the car is losing battery power, there is something else wrong there. There will be a part that charges the battery whilst the car is running (thyristor?)

    Edited by Moot_Point at 10:21:38 10-11-2013

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    mowgli wrote: I thought the 1 married the .2 and founded Islam?

  • billythekid 10 Nov 2013 11:30:55 11,156 posts
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    Connect them up together, start the Aygo and let it run for a couple of minutes.
    Then just give the Aygo some revs whilst starting the Scirocco. Nothing to worry about at all.
  • spindizzy 10 Nov 2013 12:03:35 6,534 posts
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    I've started big cars with a smart. Leave the engine running and I guess it'd be ok - the only thing is batteries have a max current they can draw, so it could perhaps damage the smaller cars battery if you kept doing it.

    Next weekend I'm changing piston rings. My other car is going to fail the Swiss equivalent of the mot, and I've been quoted 3000 Gbp to rebuild the engine. Fuck. That. How hard can it be? ;-)
  • elstoof 10 Nov 2013 12:16:37 7,522 posts
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    I'd have no worries jumping it, but if his battery is flat that soon after a long drive then he's got bigger problems and he'll be calling on you for a jump every other day.

    Deny him now and save yourself.
  • billythekid 10 Nov 2013 12:32:38 11,156 posts
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    Yep, either his battery is fucked, his alternator is not charging the battery or there is another drain somewhere (could also be alternator).
  • Moot_Point 10 Nov 2013 12:38:55 4,185 posts
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    I knew it started with "A" :D Thanks billy!

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    mowgli wrote: I thought the 1 married the .2 and founded Islam?

  • robc84 24 Feb 2014 14:55:27 5,716 posts
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    Aha, I knew a thread like this would exist on EG!

    Wall of text incoming:

    Couldn't get my car to start on Saturday, so I called out green flag (I was at home at the time). He couldn't figure out why either. He said the battery charge was fine and there was diesel reaching the injectors (I think thats what he said).

    Got it started in the end, more by luck than judgement, and he followed me to the garage to make sure it didn't break down.

    They have just looked at it today, and they reckon it's a 'diesel pressure problem' and I need to have a diesel specialist look at it. However, there only seems to be one of those around these parts and I can't get it seen until next Wednesday.

    In the mean time, I have a car that won't start stuck on the forecourt of a garage and I'm told I can't leave it there. They are going to do their best to get it started so I can drive it home.

    Anyway, has anyone else had anything similar happen to them? Any idea of how much this is going to cost? It certainly isn't sounding cheap.
  • glaeken 24 Feb 2014 15:04:25 11,200 posts
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    It's a pretty vague description of the problem. No main dealer for whatever car model it is around your area? It seems odd to require a diesel specialist as it's not like diesels are that uncommon. Did they put a diagnostic computer on it? These days these things usually give a pretty good idea of exactly where the problem is.
  • nickthegun 24 Feb 2014 15:07:02 60,170 posts
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    Almost everything that can go wrong with a diesel engine is arse wateringly expensive.

    ---------------------------------------------------------
    someone say something funny

  • billythekid 24 Feb 2014 15:08:32 11,156 posts
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    Know anybody with an OBD tester?
    They can help locate any problems, they're not perfect though.

    I've just seen they now come in bluetooth versions!
    OBD on amazon
  • Deleted user 24 February 2014 15:11:16
    I'd do a google and check through posts like this and see what results you get for your symptoms. I know I was quoted a scary amount for an "electrical loom fault" that needed a "specialist" to look at. A lot of Googling of my symptoms and I figured it sounded like a specific part and faffing about (technical term) with the part I discovered it was a bit of corrosion on the wire plug that connected that part. Cost me a couple of hours online and 10 minutes of waggling.
  • robc84 24 Feb 2014 15:12:17 5,716 posts
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    glaeken wrote:
    It's a pretty vague description of the problem. No main dealer for whatever car model it is around your area? It seems odd to require a diesel specialist as it's not like diesels are that uncommon. Did they put a diagnostic computer on it? These days these things usually give a pretty good idea of exactly where the problem is.
    The green flag guy definitely did, didn't show any problems. There is a ford main dealer local, but they are a bunch of crooks anyway.

    I know absolutely nothing about cars, so I'm going on the advice of this guy (I do know him btw, used to live next door to him). I've been taking my car there for years and they don't seem like cowboys.

    Just completely lost with anything like this.
  • robc84 24 Feb 2014 15:30:06 5,716 posts
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    Did do a quick google, but the problem is I don't understand the answers :-(

    Seems potential issues could be:

    - Blocked Filter
    - Some sort of airlock
    - Fuel cut-off solenoid (wtf is that?)
    - Low compression and fuel pressure

    Blocked system seems to be a popular answer.

    This is going to be bloody expensive I just know it.
  • glaeken 24 Feb 2014 15:39:22 11,200 posts
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    Well your green flag guy said fuel was reaching the injectors so it sounds like it's going to be about pressure. That really does not help narrow it down much though.

    A fuel cut-off solenoid is just a switch which cuts the fuel supply off if no power is reaching it. I would expect a failure on that to result in no fuel reaching the injectors.
  • robc84 24 Feb 2014 15:43:47 5,716 posts
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    Right. Problem is, no faults are coming up on the computer so I'm none the wiser. I think that's why I've been advised to see the specialist. Neither the Green Flag or the garage seem to be able to figure it out.

    Google is depressing me with how much this could potentially cost me.

    Edited by robc84 at 15:44:15 24-02-2014
  • elstoof 24 Feb 2014 15:58:50 7,522 posts
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    If they're doing the work on it, why can't they have it there for a few days?
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