2002 Lexus RX300 Q&A

2002 Lexus RX300 Question: What is the cracking sound when I accelerate?

I drive a 2002 Lexus RX300 and I hear a "cracking" sound when I accelerate. What could be causing this? -
Answer 1
exhaust leak. I would guess exhaust manifold has a crack -
Comment 1
Thank you! Could a bad O2 sensor cause that as well? -