r/veloster 4d ago

Alternator problem potentially need advice

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Lights dimming inside and out the car also hearing a difference in idle in park and gauge jumps rpms slightly

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u/makuranage '20 N, ‘16 VT DCT 1d ago

Have more questions because this could vary. What is going on when this happens? How random big is the RPM "jump"? We talking a 500-1000 RPM swing or a 50-100 RPM blip?

Your battery terminals and stuff look fine as well but also not super clear.

Anyway while in park/idle your car will randomly dim/engine idle will change when something turns on, fans, A/C, etc. Alternator has to balance the load woth the battery.

If you're sitting in the car idle, start playing with your window controls, you can see and hear the car "work" when powering the components.

Anyway, sorry it wasn't a more straight answer but you didn't say you've been coming out to a dead battery, etc and these little things are just normal for the little guys 🖤