Yes. But the pump has a dictated control for certain situations.

Like some have said.

It keeps it between 14.5 and 12.

Then it will turn on, but at idle it slows the motor and won’t come back up quickly.

It takes time because it’s over 12.

You get that right.

We do not see what else is on the vehicle.

Like I said, if he’s at that voltage at idle and the AC is on. Guess what.

The lv8 on the motor is too great.

Also, it’s just over 37mph.

In overdrive, no doubt. More lv8 on the motor.

The load is kinda big for the alternator itself to catch up.

So it’s getting hot and doing it’s best to keep it over 12v for the battery and also the PCM to keep doing its job.

Sorry, I don’t want to be rude.

I just want to tell you I’m a Triple Master and worked for the fa tory with Engineers.

Also keep in mind. 164k on the clock.

If is an after market alt. It might not be able to do its job under a load.