I have a 06 Z with 26K miles. There is a very noticeable noise (sounds like da da da da) from engine when I accelerate hard . This noise only happens under 2300 rpm and especially when I accelerate from a stop.... (only happens during slow speed or 1st,2nd,3rd gear..)
Anyone has any solutions on this problem I heard this is a common problem for 350z and G35....

any help will be appreciate..

thanks alot !

 

Does it sound like this

http://www.youtube.com/watch?v=Lq9m5izHxEI

If so, it's your injectors and it's completely normal.

...

 

Or is it more like this:

De Do Do Do De Da Da Da
http://www.youtube.com/watch?v=u2nVT...eature=channel

 

im pretty sure it's not normal , because when i got the car it didnt have this problem.
it's like when you accelerate your car immediately , something knocking the engine very loud... but only happens when low rpm.

 

you have an 06...have you checked the oil?? Search on here for oil consumption problems.