Skip to content
View in the app

A better way to browse. Learn more.
Ford Owners Club - Ford Forums

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.



Join the Independent Ford Owners' Club

Our community has been built by enthusiasts, for enthusiasts, and proudly run by Ford owners' for over 18 years. As an independent, non-official club, everything you’ll find here, advice, support, and opinions, comes directly from members with genuine Ford ownership experience.

Join our friendly community... it's Free!

 

Problem on altenator or the battery

GeorgeFocusmk3
GeorgeFocusmk3
in Ford Focus Club

Featured Replies

My focus mk3 1.0 ecoboost, has recently develop start stop malfuction. First it start to misfires on random cylinder 2 or 3. Now the misfire is not present but on idle the s/s indicator goes on but no always.No coolant loss or oil despite the  175.000km.  After a research i saw that when these happens the battery voltage is 11.8v(headlights start to flicker) and the car runs on idle for a long time due to traffic. I am reading this voltage through the cluster menu. Do you have any ideas or other methods to determine if it is my altenator or the battery that is causing that. I went to ford dealer and check the car and told me that probably the misfire is due to bad quality fuel i didnt told him about the battery voltage because i havent realized the that goes that low

  • Quote


    41 minutes ago, GeorgeFocusmk3 said:

    Do you have any ideas or other methods to determine if it is my altenator or the battery that is causing that

    Have you checked the battery using a multimeter when the engine is running?

  • Quote
    20 hours ago, Luke4efc said:

    Do you have any ideas or other methods to determine if it is my altenator or the battery that is causing that

    Also, how old is the battery?

    Is it the original one?

  • Quote

    • Latest Deals

    Ford UK Shop for genuine Ford parts & accessories

    Disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via the club

    Join the conversation

    You can post now and register later. If you have an account, sign in now to post with your account.

    Guest
    Reply to this topic...
    Go to topic listing

    The "Digestive"

    • The Digestive Forum Roundup (31st May - 7th June 2026)

      Steve ·
      The Digestive Forum Roundup (31st May - 7th June 2026) We hope you’re all enjoying your week and finding time for some time enjoying your Ford! This week, our vibrant forum has been buzzing with discussions that touch on a diverse range of Ford models, from the Mondeo to the Fiesta and Focus. Here’s a recap of some key conversations that might pique your interest. Starting with the Mondeo, user Frenchspanner shared a particularly frustrating issue relating to a 'Immobiliser Active' message appea
      Steve
      Steve
      • 28 views





    Background Picker
    Customize Layout

    Account

    Navigation

    Search

    Search

    Configure browser push notifications
    Chrome (Android)
    1. Tap the lock icon next to the address bar.
    2. Tap Permissions → Notifications.
    3. Adjust your preference.
    Chrome (Desktop)
    1. Click the padlock icon in the address bar.
    2. Select Site settings.
    3. Find Notifications and adjust your preference.