voltage drop

[Kastlez_ 10+ year member]

my voltage drops to 11.8 when i either

1. Unlock / Lock doors

2. Roll up / roll down windows

these are the only two things in the entire car that make the voltage drop otherwise im good @ 14.4 speed and idle

why!?

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[Rashaddd 5,000+ posts]

ic ant believe unlocking doors would drop you like that, but windows is understandable

 

[skmfkr 5,000+ posts]

when u first turn the ac on what does it drop to?

 

[Kastlez_ 10+ year member]

when u first turn the ac on what does it drop to?

not sure haven't ran the A/C in a long time. I'll check it out

 

[Ali1 10+ year member]

that happens to me as well, and my lights dim when I do any of the two.

 

[Kastlez_ 10+ year member]

ic ant believe unlocking doors would drop you like that, but windows is understandable

That's what i thought but last night at idle i check it out w/ the door open and it dropped for a quick second.

 

[Kastlez_ 10+ year member]

that happens to me as well, and my lights dim when I do any of the two.

exactly.

What kind of car do you have.

 

[Ali1 10+ year member]

98 lumina you?

 

[skmfkr 5,000+ posts]

mine lights used to dim when the engine fan would cut on and i think wen the ac would first come on, but i dont remember what stopped it, either upgrading the grounds under the hood or the d3400 in the back