this is my first experience with VQ35D engines and I have a few questions about them. As we know this engine has a timing chain that may generate sound. My previous car also was with chain and after the engine was started, you could able to hear a rattling sound. My Nissan quest has 134K miles and also has the same sound but it seems louder. Is it normal?
sometimes it is louder, sometimes it is absent. I have not found any correlation between this sound and other conditions.
Sometimes after driving a low-frequency sound like a gurgling (or even knocking) may be heard. It is relatively quiet in engine symphony but may be identified anyway.
Is it a normal sound for Nissan V6? Where is it from?
Thank you for reading