Just like any other vehicle. The head must be removed in order to replace the gasket. There is no other repair for a blown head gasket except the replace it.
You cannot and should not buy a used head gasket. If you have a blown head gasket you replace it with a new gasket. The gasket will cost very little. The labor to replace the gasket is where the cost is. Expect to pay from $500 to $1,000. This is a major repair that takes time.
No the 2002 had a 1.5L DOHC I4 and the 2003 had a 1.6L DOHC I4
The 2004 Kia Sorento has 39.7 in. of front head room.
The 2004 Kia Rio has 39.4 in. of front head room.
The 2004 Kia Sedona has 39.4 in. of front head room.
The 2004 Kia Rio has 37.6 in. of rear head room.
The 2004 Kia Sedona has 36.3 in. of rear head room.
The 2004 Kia Optima has 39 in. of front head room.
The 2004 Kia Optima has 37.6 in. of rear head room.
The 2004 Kia Sorento has 39.5 in. of rear head room.
To replace the head gasket on a 1998 Kia, first, ensure the engine is cool and disconnect the battery. Remove the intake and exhaust manifolds, and detach any components obstructing access to the cylinder head, including the timing belt or chain. Carefully unbolt the cylinder head, clean the surfaces, and place the new gasket in position before reassembling everything in the reverse order. Lastly, ensure all bolts are torqued to the manufacturer’s specifications and refill the engine with coolant and oil.