Jump to content
Do Not Sell My Personal Information

Charging Problem


Recommended Posts

Okay, my wife's Ford Focus lit up like a xmas tree last week (no jokes please) now I know this is a low battery fault. Now to cut a long story short I have wired a digital ammeter inside the car to see the voltages coming from the alternator. At Idle just over 13v at 2500rpm and over 13.9v, now for the problem, when I use the side lights it drops by approx. 0.2v, but when I put the heater fan onto number 1 the voltmeter shows 12.3v, in effect the alternator not charging. There is no light on on the dash and when I turn the heater off after around 10 secs it starts to charge again (13.9v). Any ideas? sounds like a dicky alternator but not sure any help.

Link to comment
Share on other sites

Alternator is certainly suspicious, however the heater is a high output item. IIRC, putting heat on with the heated windscreens the car should be running at around 13v at least....

Link to comment
Share on other sites

Join the conversation

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

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...