We acquired a 2005 Hyundai Elantra GT. I want to replace the belts. Does it have 1 belt or 2?

Interference.

Interference Engines - The Complete List - Your Car Angel

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An interference engine is one that has insufficient clearance between the valves and pistons if the cam stops turning due to a broken timing belt. The result is ...
Aug 1, 2014 · Uploaded by YourCarAngel

Does this car have an interferance motor? - 2005 Hyundai ...

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Mar 22, 2018 - All Hyundai engines are interference design. The only way to test for bent valves *before* replacing the timing belt is to remove the ...
2 answers · Top answer: Yes, it is an Interference engine

Check the attached links,similar models to yours power steering belt replace.
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The top portion of the timing belt cover is removable so you can inspect the belt. You should be able to remove 2 or 4 10mm head bolts ant take the top of the cover off.

Check the power steering fluid

It's a '99 Elantra, have you ever replaced the timing belt? It is a belt not a chaing, so it is very much should have the belt changed. After 13 years if you haven't done the belt yet now appears to be the time to change. I have an '05 and we changed it over a year now.

Good luck!!
EJ Kudelka

depends on your local climate ,if its dry and hot then the belts can fail early as the plasticiser that the belts are made with dries out ,di iso butyl phylate is a common one used and yes if they say this then are no doubt correct ,we have a similar problem here on the med here in spain

belts in right pulley position? and air can cause squeeling

without taking the housing apart......the return spring is more then likely damaged/pinched, or the belt got twisted inside the housing

(1) No need to know if engine block coolant drain plug was available. Once the water pump was removed, all engine block coolant was drained. (2) After removing the three engine mounting bracket bolts, I also removed the mount bracket from the the body and made enough room to replace the timing belt easier.

Air conditioning system Drive Belt (INSPECTION) Deflection : Used belt : 6.0~7.0mm (0.24~0.28 in.) New belt : 5.0~5.5mm (0.20~0.22 in.)
NOTE These items when adjusting belt tension : • If there are cracks or any damage evident on the belt, replace it with a new one. • "Used belt" means a belt which has been used for five minutes or more. • "New belt" means a belt which has been used for less than five minutes.

ADJUSTMENT 1. Loosen the tension mounting bolt(B). 2. Turn the adjusting bolt(C) to obtain the proper belt tension, then retighten the mounting bolt. 3. Recheck the deflection of the drive belt.