the manual transmission oil (clutch fluid) is located next to the master cylinder (brake fluid resevior) near the driver side towards the back of the engine (looking at engine it would be in the upper right corner (smallest resevoir) it should be amber clear if good and at the fill line, if its discolored or at least 20,000 over its time to flush it, you can use a vacuum pump or even a turkey baster to suck the fluid out, but do not go below the minimum line, you can suck it out and fill a couple of times to help flush out the old and put in the new
The 2004 Kia Optima has a 5-speed manual.
get it out from the plug under neat and add it on the same place where you check the transmission oil (where the stick is)
You'll need a funnel but you pour it into the tube that holds the fluid check stick
On a 2004 Kia Optima, the crankshaft sensor is located on the front of the transmission case. The sensor is adjacent to the flywheel.
Transmission sensor problems on a 2004 Kia Optima will cause incorrect shifting, poor performance, and hesitation. Sensor failure can be narrowed down by connecting an OBDII code reader to the vehicle's computer.
The transmission filter on a 2004 Kia Optima is located inside the transmission pan. To access it, you typically need to remove the transmission pan by draining the transmission fluid and unbolting the pan from the transmission housing. Once the pan is removed, you'll find the filter attached to the transmission body, which can then be replaced. Always consult the vehicle's service manual for specific instructions and safety precautions.
The 2004 Kia Optima has 16 valves.
The 2004 Kia Optima has an inline 4 engine.
The 2004 Kia Optima is a gas-powered vehicle.
The 2004 Kia Optima has double overhead cam (DOHC).
The height of the 2004 Kia Optima is 4 ft. 7.5 in. (55.5 in.).
The 2004 Kia Optima is 15 ft. 5.8 in. (185.8 in.) long.