Battery light comes on
My battery light came on. I found that if I would drive it for 5 minutes, then
turn it off and back on, the light would not come back on. I did not test the
voltage at that time. I pulled the alternator and had it tested. It checked out
okay. I put the alternator back in and it worked for a few days. Then the
battery light came back on. I pulled the alternator again and tested it at a
different shop. They tested about 7 times and it passed every time. I put
the alternator back in. It worked again for a few days. Now the battery light
is coming on again. What are the possible causes?
If money permits put a used/rebuilt unit in from a parts store that will take it back if its not fixing it and see if a another alternator fixing it, if not take it back, sometimes the load test does not put it threw all possible use and it could be bad or going bad.
Thanks for your suggestion. I ended up buying a replacement alternator and installing it. After driving for a week, It appears that the problem has been resolved. I don't know that I will ever really trust the alternator tests unless they show that it has failed.
True, Failed means failed, Pass means Still may be bad.
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