Low Voltage GT PP

[rjuice]

My car was doing this and dealer said it was a bad pin connector on the alternator. They had one instock so could be a common problem

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[Asharus]

i noticed mine was 12.9 the other day, but it was 14+ today.

 

[bvdawg13]

Mine is doing this too. Drove long distance on the highway at 12.7 usually around 13.7 or 14.1. My blue gauges also kept turning back to the default white

 

[DiEzel]

Mine's constantly fluctuating.. Between 12.9 - 14.1-4.. All the time. I Find it odd.. No issues other than that.

 

[Sick03L]

My 16 PP is doing this. Today its sticking at 13v. Its all over the place most of the time from 12.3 to 14.1

 

[Asharus]

normal

 

[Evo_Rob]

That's what a voltage regulator does. PCM will determine how much the alternator should output. It'll vary depending on load. Once the battery is fully charged, there's no reason to maintain 13.5V+. Your cars run off a 12V system. The excess voltage is to restore the battery after loads have drained it.

 

[SPEEDFREAK13]

Yup after 1 year of doing this no related problems.

 

[V8EATR]

That's what a voltage regulator does. PCM will determine how much the alternator should output. It'll vary depending on load. Once the battery is fully charged, there's no reason to maintain 13.5V+. Your cars run off a 12V system. The excess voltage is to restore the battery after loads have drained it.

Bingo. Fords have what they call a smart charging system. The battery does not need 14+ volts all the time. The alternator is being efficient, stop taking your cars to the dealer for this lol.

 

[Asharus]

i remember reading several months ago that someone on here took their car in because of this. then the dealer said something about tightening a loose alternator wire and it fixed it.

i remember thinking, well, this guy's going to be in for quite a surprise when he sees his voltage dip again in a few days, LOL

 

[randyGT]

Umm, 12 volts is holding steady. 12.1 volts is charging your battery or keeping it topped off. 14+ volts were the norm in older cars I think. Recent vehicles with vast digital technology are super efficient. They don't require excessive increase in voltage to maintain peak performance. Just my opinion of course. FYI, mine does the same thing and in 17,912 miles (as of today) it runs perfectly

My digital gauges indicate an average of 12.1 volts coming from the alt jumps to 13 but drops back down slowly. Is anyone else having this problem?

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