Battery light coming on
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Tuned
Joined: Jun 2006
Posts: 338
Likes: 0
From: Boulder City, Nevada
Battery light coming on
I took a 1200 mile road trip last week and my battery light would come on while cruising for maybe 4 or 5 minutes then go out. I thought it might be the alternator but my scan gauge still reads 13.4 to 13.5 volts so doesn't this mean my alternator is still working ok.
Hotshot
Joined: Apr 2010
Posts: 19,073
Likes: 243
From: Saratoga Springs,UT
Yes still working but a Diode usually is Going Bad In the Alt for Random Bat Light that still has Strong Crank
Get a Battery Hydrometer and test bat cells its Very Accurite
You may need Both an Alt and Batterys they sometimes Kill each other
It would be a Great time for High Output alt
Hotshot
Joined: Apr 2010
Posts: 19,073
Likes: 243
From: Saratoga Springs,UT
Oh Clean ALL Cables and Connects Good even grounds follow them to where they mount Both Ends and Clean them
Its worth a Shot IMO First to clean if you haven't tried
Occ this works or you find a Bad Ground wire or something
Its worth a Shot IMO First to clean if you haven't tried
Occ this works or you find a Bad Ground wire or something
Lead Driver
Joined: Sep 2005
Posts: 9,399
Likes: 188
From: Norco,CA
I just had an alternator installed on the road. It is only putting out 12.5 volts and the hot wire always seems hot. I mean really hot to touch. Is this alternator bad too? Also installed new batteries month ago.
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