Alternator?

[tv559]

I was wondering if a aftermarket alternator would allow my 2007 chevy avalanche to idle at a constant 14+ volts. I hate that it dips into the 12s all the time.



Thanks,

 

[NathanJax]

That's the power management by the computer, so no. An aftermarket alternator will only give you extra amperage.

 

[Denali0229]

Upgrade your wiring and get a bigger starter battery under the hood and perhaps a second battery first. If your volts still dip, then look into an alternator.

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[tv559]

I do have a second battery. I have a kinetik 1400 in the back. It seems like every morning my truck does not want to start when I turn the ignition but when it finally starts I have 14 volts then just minutes later it goes into the 12s. I might just try a bigger battery up front

---------- Post added at 10:14 PM ---------- Previous post was at 10:11 PM ----------

Also there has to be a way to bypass the stock computer to allow the battery to be charged at 14+ volts at all times

 

[Denali0229]

Mine does the same thing. I'm not sure why it does that. And I just put in a shuriken 80. It bothered me so much that I checked it with a dmm when I started the truck, 14.4v, then checked it when I got to the hardware store and it was 12.7v. I didn't play the radio or use any other electronics. I have Big 3 done and stock alt.

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[tv559]

Mine does the same thing. I'm not sure why it does that. And I just put in a shuriken 80. It bothered me so much that I checked it with a dmm when I started the truck, 14.4v, then checked it when I got to the hardware store and it was 12.7v. I didn't play the radio or use any other electronics. I have Big 3 done and stock alt.

Sent from my PC36100 using Tapatalk 2

Its the Power management bs. Im getting a MLA module so I can bypass the stock ecm to charge at 14.9 volts

 

[Denali0229]

Let me know how it goes. The voltage seems a little better with a little time in the truck. I played my stereo full blast earlier and it maintained around 14v even with tons of bass.

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