Transmission Fluid change - Kia Forum

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post #1 of 3 (permalink) Old 04-13-2019, 03:43 PM Thread Starter
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Transmission Fluid change

I've got my 08 Optima and am needing the transmission fluid changed. I called the shop to inquire the cost of it and they said it's just a drain and fill in my car, looking at around $150 to do it. I'm all up for learning new things, so here I am. I haven't been under the car to look at the transmission, but I'm 99% sure it has a drain plug.

Heres where I am confused.. I've searched around here on the forums and some people seem to not have a dip stick and instead have a fill hole to fill the transmission up. I have a dip stick. Should I also have a fill hole? I haven't been able to locate it looking around under the hood down by the dipstick. Should I fill it up through the dipstick?

One more thing. I was looking for a replacement filter and have come across the standard one that goes inside the pan, and also a spin on filter. Somewhere in the forums I seen someone mention that around 2004 they stopped using them? Would it be on top of the transmission or on the bottom? I can see a round spot where I think it may go, but is sealed up.

Thanks in advanced everyone!

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post #2 of 3 (permalink) Old 04-13-2019, 04:29 PM
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Since you have a dipstick, that is also the fill tube.
It is recommended that you let the dealership or trusted local mechanic perform the fluid change.
Pulling the pan can make a big mess, and you don't want to disturb any grey sludge on any components.
Normally the filter in the pan is a screen, not a filter like the engine. As you stated some have spin on filters.
Overfilling the trans is as dangerous as underfilling it so if you do do it yourself please be careful.
You won't be able to get all the old fluid out of the trans. The converter holds quite a bit of ATF and it only drains down 1/2,
if it does not have a anti-drain back valve.....
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post #3 of 3 (permalink) Old 04-14-2019, 11:06 AM
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Yes man,

Just leave it to the pros
Javier.chua is offline  

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