Results 1 to 5 of 5

Thread: New Alternator faulty?

  
  1. #1
    Status
    Offline
    charlie 11's Avatar
    AOC Newbie
    Join Date
    Oct 2010
    Posts
    2
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)

    New Alternator faulty?

    Hi all, any adivce will be much appreciated.

    After fitting new alternator to my Mk4 99 Astra, everything was fine for a couple of days, until driving home from work yesterday. I was driving along when all the warning lights came on,(except battery) no seat belts, low fuel, revs and speedo dropped to 0, even though doing 60mph and no powered steering. After a few seconds warning lights went out but the powered steering didn't return. Got home and put a meter across battery, read 13.8v eng off 14.25v at idle and 14.51v at 2000revs. Also there was battery acid in tray, but battery didn't feel hot.

    What I'd like to know is whether alternator supplies current direct to electric hydraulic steering or it goes via the battery, also whether 14.51v at 2000revs is too high, because I suspect battery is being over charged.

  2. #2
    Status
    Offline
    robs.project's Avatar
    AOC Obsessed
    Join Date
    Jul 2010
    Posts
    1,610
    Mentioned in
    0 Post(s)
    Quoted
    1 Post(s)
    when my battery was faulty i took it to motorworlds for a free check turned out alternator was fine as they check tht when engine is running but battery was checked when turned off an turned out wasnt throwing the correct voltage out
    1.6 16v duelfuel

  3. #3
    Status
    Offline
    pewseyfam's Avatar
    AOC Obsessed
    Join Date
    Jul 2008
    Posts
    1,579
    Mentioned in
    2 Post(s)
    Quoted
    2 Post(s)
    The alternator does not power the steering pump directly but the system cuts the power steering if the it thinks the alternator is faulty.
    T
    Viva HB(DL90), Escort Mk2(1.3L), Astra E(1.6L), Astra F(1.4Merit) Astra F(Arizona),Astra E(1.6GL), Laguna(2.0RXE), Astra F(2.0CDX), Astra G(1.7LS)!!

  4. #4
    Status
    Offline
    charlie 11's Avatar
    AOC Newbie
    Join Date
    Oct 2010
    Posts
    2
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    Turns out new Alternator was faulty, so I'm getting refund and buying brand new one on ebay from A W Taylor for £39.99 and £10.99 postage bargain or what?

  5. #5
    Status
    Offline
    p-a's Avatar
    AOC Obsessed
    Join Date
    Jun 2007
    Posts
    1,610
    Mentioned in
    0 Post(s)
    Quoted
    0 Post(s)
    I had exactly the same problem as you (description was pretty much identical!). Mine was also the alternator that failed.

    Just to warn you, for £40 you will not be getting a brand new alternator! That is simply impossible (unless it is some crap replica). Alternators are relatively expensive to manufacture, which is why they typically cost £200+ new. I'd recommend that you get a recon alternative from a good manufacturer. It'll cost you a bit more, but will last years.
    1999 Astra CDX 1.8 16v Auto Estate

    14th December 2012 - 200,000 miles

Similar Threads

  1. Faulty alternator advice.
    By moshis in forum Astra Discussion & Chat
    Replies: 3
    Last Post: 16-07-2012, 20:47
  2. faulty battery / alternator?
    By Scott D in forum Electrical
    Replies: 6
    Last Post: 28-08-2009, 20:18

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •