Random low voltage. HWY speeds or Idle
#1
Random low voltage. HWY speeds or Idle
I cannot pinpoint the exact cause of the issue, and its leaving me to believe its the internal regulator in the alternator.
At idle, I will get around 12.5V.
At highway speeds, I will get around 12.5V.
Sometime, I will get 15+V at highway.
It corrects itself randomly for whatever reason. I am fairly familiar with alternators, and amperage going up with spin speed, and no way I should be getting that low voltage at 2000 RPM (IMO).
Once again, I can't pinpoint it. I tried to turn the radio on and off, and responded once in voltage, but not again. Applied the brake - responded in voltage once, but not again. It is all random.
I have a radar detector with a built in voltage reg, and this is what alerted me. I double checked with a digital volt meter.
Any insight is appreciated. Thanks!
At idle, I will get around 12.5V.
At highway speeds, I will get around 12.5V.
Sometime, I will get 15+V at highway.
It corrects itself randomly for whatever reason. I am fairly familiar with alternators, and amperage going up with spin speed, and no way I should be getting that low voltage at 2000 RPM (IMO).
Once again, I can't pinpoint it. I tried to turn the radio on and off, and responded once in voltage, but not again. Applied the brake - responded in voltage once, but not again. It is all random.
I have a radar detector with a built in voltage reg, and this is what alerted me. I double checked with a digital volt meter.
Any insight is appreciated. Thanks!
#2
Senior Moderator
Alternator sounds like a likely culprit...
#4
Senior Moderator
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