You need to consult with a shop manual, the job is complicated.
You can probably do it yourself if you are determined enough. it is rather complicated though you have to remove valve cover, serpentine belt, idler pulley, a/c compressor bracket, power steering bracket, crank pulley, probably some other stuff too and that's to just remove the cover off the engine. You have to have some special tools too such as a a toque wrench and some pullers. if you are not too experienced with working on cars i would leave this to a professional. you can cause a lot of damage to your engine if you don't do it correctly and if its not alligned properly you'll have to do it all over again. the fact that you're asking how to do this you probably should leave this to a mechanic
It has a timing chain.
all sportage up thru 2002 have timing belts.then they had a big model change.
2003 320 D is chain driven There is no timing belt on this model.
it has a timing chain. there were no timing belts on corollas after the 1997 model year
timing chain
Timing CHAIN - beginning with the 2002 model year.
Chain is using on Model 2011
A Jeep Patriot has a timing chain.
The 2000 Ford Fairmont uses a timing chain.
Any model or engine size of that year regal has a timing chain.
It has a timing belt.
The 2007 model has a timing chain instead of a timing belt.