Whenever I put my windows up or down (doesnt matter which one) when they stop moving in whichever direction my car idle drops about 100 rpms for a split sec and then returns to normal.. This happens all the time. Like its robbing power when it completely goes up or down, and then back to normal. I hope you can understand what im trying to explain, any help is appreciated.

 

weak battery ¿

how about when you turn headlights on ?

 

it's either a weak battery or a weak alternator...what kind of voltage are you reading with the key on? and with the engine on?

 

nope it only happens with the windows.

 

key on i think is around 12 and with engine on is around 14...

 

try checking the sunroof,if it does it also,it could be the relay

 

Yeah i forgot it does it with the sunroof too.. so which/where relay?

 

on your fuse box cover,it should show fuses and relays and where they go.if you can find one that is EXACTLY the same and non critical for the moment ie. maybe headlight relay.pull it out and put it in window relay spot for checking.

 

not a good legend on fuse cover,but if you look past the fuses you will see the relays ,let me see if i can identify

 

So the relay for the windows includes the sunroof? Any idea how much a relay costs roughly?