acceleration makes the car sound louder

[jayd]

i have a 2003 Lexus RX and the issue with my ride is that when accelerating the car gets louder than normal. what could be the reason

[roggerd]

Check ur clutch fan behind radiator. If it failed it will work with sme rpm of engine, whereas it has two speed. Slow is for all time, and fast same as engine rpm when car is overheating to cool it down.

That fan clutch has viscose fluid (silicone) and also known as viscose fan. easy fix might be little expensive in part.