2010 G37S Coupe with 23k miles.
Eibach Pro Kit installed at 4500 miles
CV1's installed at 4700 miles

I recently took a 700 mile road trip and found the car to wander within the lane in addition to the knocking noise I hear while going over bumps slowly. Car also continously pulls to the left, even before/after a recent alignment.

For sure the noise is coming from the driver side front and I can feel it through the steering. Car is obviously within the warranty period, but something tells me the dealer will say that the wheels/lowering springs are the culprit, which I don't doubt at this rate.

Any ideas? Many thanks

 

Do you have SPC front camber kit? If so check the joint between the spindle and the upper A arm. It might get loose.

EDIT: here's a link to a thread with a video of a friend having an issue on a G35. Something to check maybe.
http://strictlygs.com/showthread.php...4901#post34901

 

BB, the link in the video shows a loose ball joint. That part should be nice and tight. The rubber boot around it should be firm and filled with grease.

 

Do you have SPC front camber kit? If so check the bushings, I had one come apart.

 

Correct. It's a little different on the G37, but it's a good place to start checking for looseness if you're having front suspension rattles.

 

Thanks for all the input guys. Looks like I had an issue with the tie rod bolt not being tightened correctly, causing the noise and wandering car. That'll be the last time I let a Nissan dealer service my car, as the Infiniti dealer fixed it and didn't charge me. I bought my car from there new, so I guess rightfully so.

At any rate, thanks for all the suggestions!