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The Terminator
Engine/Tuning
Voltage??
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<blockquote data-quote="jm@ReischePerf" data-source="post: 8460006" data-attributes="member: 48129"><p>I think that's perfectly normal. When the fuel pumps are wide open they draw a good bit of amperage and when the fan is running that's another 40 amps or so, that plus other draws are easily capable of dropping the voltage below 13V under certain conditions. I wouldn't be concerned unless you see maybe low 12s or under. If the system ever reads below battery voltage when the car is running then this is an indicator that the alt is not keeping up with demand and that power is being discharged from the battery.</p></blockquote><p></p>
[QUOTE="jm@ReischePerf, post: 8460006, member: 48129"] I think that's perfectly normal. When the fuel pumps are wide open they draw a good bit of amperage and when the fan is running that's another 40 amps or so, that plus other draws are easily capable of dropping the voltage below 13V under certain conditions. I wouldn't be concerned unless you see maybe low 12s or under. If the system ever reads below battery voltage when the car is running then this is an indicator that the alt is not keeping up with demand and that power is being discharged from the battery. [/QUOTE]
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