Alternator light question, concerned about a voltage drop an alternator light starting to come on |
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Alternator light question, concerned about a voltage drop an alternator light starting to come on |
DRPHIL914 |
Nov 16 2018, 05:25 PM
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#1
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Dr. Phil Group: Members Posts: 5,767 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
I am about three hours into a 5 Hour Dr. on my way to Atlanta I just noticed a little while ago maybe 10 minutes ago a slight dim Flickr or glow from my alternator light also then looking at my voltage gauge which with my lights on normal he reads 11.5 V but it now reads 10.5 phones. Also at one point I hit a bump and the light disappeared in the voltage went back up to 11.5 but then after a few minutes the voltage drop again and the light is now on very faintly but it is so here’s my question what is the most likely cause is it a loose wire somewhere is it a loose belt those are the two most likely scenarios to me but if it’s a wire what should I look for I know I’m going to have to stop to look and right now I hit a bump** edited** as I’m driving right now and the light went out . So what light is most likely loose and causing this issue I’m going to have to stop and figure it out I guess thank you for the SAP help and responses in advance, Dr. Phil
I think you can see from this picture the light is on when I turn the other lights off you can see the faint glow of the alternator light and maybe even a little bit and the other picture with the lights on Attached thumbnail(s) |
DRPHIL914 |
Nov 18 2018, 03:56 PM
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#2
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Dr. Phil Group: Members Posts: 5,767 Joined: 9-December 09 From: Bluffton, SC Member No.: 11,106 Region Association: South East States |
Made it home today ok , but toward the end of the drive the voltage was slowly dropping, so i checked it as soon as i got home with the volt meter and it was reading under 12, @ 11.75 wen running, and turned off 12.34 over battery terminals. came back a while later restarted it and checked again, and it was 12.15 at idle. that waa the same with both voltage regulators i have. double checked connections at the coil, battery, and relay board alt harness etc. all good.
I am beginning to think that my alternator is not making proper voltage. i remember when i first put this alternator on and put the motor back in the car in Sept and i know it was tested at over 13v at that tme. Do alternators go bad slowly like that? seams strange for a brand new one to go that fast. btw battery is only a year old |
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