2005 evo 8 SSL.
When I press the power window buttons on both driver and passenger, making it go up or down, it slows down. Only pressing one or the other is good and fast. How to make this old technology be fixed like its a good new car?

Is it old motor? Wiring? How to?

thanks

 

It is pulling harder on the battery and charging system doing two at once so it slows the speed of both respectively mine does this as well. Just roll one up fast followed by the other lol

 

does it only do it at idle? if so, press the gas? lol A new battery might help too

 

Sounds like the battery, BUT spray some silicone in the tracks, that should help.

 

Mine's always done that, including with a new battery. It appears to be normal.

 

Same, there is probably just a limitation by design on how much the system can handle at one time with multiple servo motors running (or something of the like). Not a big deal.

 

Completely normal, more load on the battery causes this to happen. Nothing to worry about.

 

BOOOM... that's just how it is dude.