Hyundai Repair: decompressor noise after car is parked, hyundai service, mazda cars

Question
I have elentra 2006. When I park the car after driving for 10-15kms, I hear some consistent noise like tch tch tch...
This noise fades away within in 5-10min. I talked to a hyundai service person and he said that this is usual with cars and its de-compressor sound. Its irritating me as I never heard this sort of noise from Honda or Mazda cars. Any opinion? Thanks


Answer
I cant say what it is being your over seas but this is not a normal sound,ist not nromal at all.there is reason for this unless its something from your land.but take it to another better tach an see what he thinks sorry this all i can say being i dont know the sound your saying ,