Should I change automatic transmission oil on my 2004 kia sedona?

too complicated and expensive for a diy
as the seal is leaking , you will require a new timing belt as oil destroys belts very quickly
An accredited service center with experience on your make of vehicle will do the job inside 5 hours and if professional will replace all seals , hydraulic belt adjuster and idler pulleys to ensure that it lasts to the next scheduled belt change
make sure you ask if that is going to be done and insist that it is so or go somewhere else

Oil, Oil filter, and spark plugs. Check the air filter for the engine, it is likely still ok, not changed in most cases until 36,000 miles unless you live in a dusty area.

If you need to ask, take it to an oil change establishment, because if you screw up anything, you'll be out an engine.

Trans oil in radiator ? --is a failed trans cooler & will need a new radiator & transmission rebuilt

Coolant in the motor oil ---is a leaking intake or head gasket


You go damage already, how major has to be determined

I wouldn't drive it

dear,
if the oil is coming from the gasket then get it changed immediately.
if the oil ics coming from the drain plug then tighten it little.

thanx

To fill the transmission fluid, you need a funnel that fits into the dipstick tube, add fluid there. If the fluid is black and smells burnt, that's bad. I would have the fluid changed. These transmissions don't have a filter, probally a bad idea.

have vehicle scanned some auto stores such as auto zone/advanced auto scan for free check ur area the trouble code will give u a place to start also state had trouble code before could be returning

The simplest way is to take your own trans fluid to a shop with a flush system available...otherwise you have to drop the trans pan....make sure you use the factory fluid

First you have to take off the black plastic cover then you will see the 3 on the front of the engine the other 3 are under the manifold, you have to remove the manifold in order to reach them, I suggest you take the car to a mechanic for this work.