slomove Posted July 18, 2009 Share Posted July 18, 2009 On that long Rocky Mountains trip I just returned from I had some alternator trouble. Sometimes the battery charge voltage was about right at 14 to 14.5 Volts. But quite often the voltage started oscillating (about 2 times per second) between 14.5 and 16 Volts, with the result of flickering headlights and a serious concern that the battery might get cooked. That kept going until the engine was turned off and started again. I never heard about such an oscillation but suspect a dodgy alternator regulator. I checked all the leads and ground and can not find a problem there. This is one of the Geo Metro alternators, but not the old model with the main charge lead on the side post but the newer bigger model with the post out of the rear. Any opinion? Thanks, Gert Link to comment Share on other sites More sharing options...
jlumba81 Posted July 19, 2009 Share Posted July 19, 2009 Can you remove the alternator and bring it to a local autoparts store that offers free electrical diagnosis? Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now