User Tag List

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 4 of 4

Thread: normal voltages after alternator replacement?

  1. #1
    Regular Member
    Join Date
    Feb 2011
    Location
    1
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default normal voltages after alternator replacement?

    After the advise here, I changed the alternator on my 1.8 vectra, very happy I was with myself.

    I have done some meter readings after a drive and when the engine is off the battery reads 13.4 volts and when running the reading is 14.9 volts.

    Do these sound right ? the old alternator was 12.5 volts with engine off and 14 when running. So there is definitely a difference and the limp home mode and power steering problems have gone away now.

  2. #2
    Regular Member
    Join Date
    Apr 2007
    Location
    scotland
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    Your readings certainly sound a bit high to be honest! Are you using the same multimeter as before? A 12v battery has 6 cells at 2.1 volts per cell so it really shouldnt be much over 12.6v fully charged, 11.7v is fully discharged.

    Lead acid really does not like being charged at more than 14.4v so your 14.9v might be in danger of damaging the battery if the voltage measured is accurate.

  3. #3
    Regular Member Envy's Avatar
    Join Date
    Jun 2010
    Location
    Welwyn Garden City
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Vectra C

    Trim : SRi Nav

    Engine : 1.8 VVT

    Year : 2006

    Mileage : 130k

    Default

    When I measured my 1.8 vvt running it was pumping out a steady 14.7 volts.

    No adverse effects here so far

  4. #4
    Regular Member Critch's Avatar
    Join Date
    Dec 2009
    Location
    wirral
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    36 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Mk1 renault scenic... I know I know but it drives

    Trim : Basic

    Engine : 1.6 16v

    Year : 2003

    Default

    Battery is shorting a cell internally

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Alternator pulley - replacement has finally arrived
    By Caveman_nige in forum Engine & Drivetrain
    Replies: 8
    Last Post: 1st September 2012, 18:23
  2. Replies: 0
    Last Post: 8th December 2011, 22:15
  3. 2.0T Alternator replacement
    By neilbroad in forum Electrical & ICE (including SatNav)
    Replies: 3
    Last Post: 28th January 2011, 11:35
  4. signum -alternator belt replacement
    By mike a in forum Engine & Drivetrain
    Replies: 6
    Last Post: 22nd September 2010, 18:14
  5. Oxygen Sensor Heater Circuit Voltages?
    By marcdale in forum Engine & Drivetrain
    Replies: 1
    Last Post: 31st May 2009, 21:28

Visitors found this page by searching for:

vectra c 1.8 correct alternator voltage

Bookmarks

Posting Permissions

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