erratic steering on G37S

[geoff_diamond]

Well, now that I've been driving her for a few more days, I really don't think the problem has improved at all. I think I was just caught up in the euphoria of having the car back. At any rate, I did the tire check described above and didn't feel any discernible issues (I've got the Potenzas).

I'm going to look into the ball joint status and see if there's anything that can be done to them. Lastly, and this may be a VERY stupid question, is there anything that can be done w/ the power-steering fluid in an effort to correct the issue (ie - adding more, or completely flushing and replacing)?

[Sentientbydesign]

I had a feeling you'd come back and say this...

I think your alignment specs will need to be deciphered for us to do much else.

Also, a tire measurement would help. The texture test mentioned wouldn't say much to me.

[gwoods]

Probably not going to be a PS issue. I had mine flushed and filled at about 25k for $69 at Infiniti of Scottsdale just cause it looked nasty.

Have your GF or wife turn the wheels back and forth and see if you can see anything on the control arms, spindles, tie rods moving excessively?

On my Ram I could see the spindle flopping around at the upper control arm when my wife turned the wheel. The upper ball joints in the control arm were toast!

Look for a fitting, the ball joints may be greaseable and that might make a night and day difference.

Time to take it back to the dealership and enjoy the loaner sedan!

[SteveTheTech]

Maybe they need some lube?

Come on there has not been serviceable ball joints or any suspension components in any Infiniti since maybe 1 zerk on a front driveshaft on the first Gen QX4.

I do not think you will find anything checking the ball joints. There is only 1 way to do it correctly and any tolerance is unacceptable. It is not worth doing this yourself, just call your SA and tell them what you have. If that does not work call the Service Director. If there is an issue with the car it needs to be isolated.

If it is not the tires it maybe the car breaking in to some extent but the way you are describing this there may actually be something with this. We can wildly guess all day long as to what it may be but without actually driving the car none of us can accurately diagnose this.

[gwoods]

Come on there has not been serviceable ball joints or any suspension components in any Infiniti since maybe 1 zerk on a front driveshaft on the first Gen QX4.

guess I should have gone out and actually looked at my car before posting LOL

I just went out and looked. Yeah the spindle bolts to the upper control arm? might be something there?

Steve how would you approach the SA? just tell them that its still not fixed or maybe say it feels like the vibration is coming from the suspension and ask them to give everything a once over??

[SteveTheTech]

I'm not trying to bust your a*s I was just saying that that surprise surprise a Mopar still not only has grease fitting but crappy suspension components. Although I have always coveted the beastly SRT-10.

I would say to talk to the service advisor or maybe service director and mention that something feels off to you. The should allow you to drive one with comparable wheels and mileage (if one is available) for you to examine and drive back to back with your car. I would ask if they have a lead tech that could drive with you (this may be a long shot, depending on their schedule). If there is a problem they should want to address it, it gets a little hard when nothing is out of the ordinary.

I understand your frustration, I really do I have tried to chase things that I could not verify for days. If there is something tangible to replace or adjust (although there are almost no adjustments and suspension failure are extremely rare) I can assure you they would replace it. I am really curious as to what is the root cause of this concern or if it is indeed the car settling in. EDIT-I think there are allot of great ideas have been brought up here, however I think the only legitimate concern would be tires. As the direct link to the road and the most likely cause of any type of concern that cannot be found(if indeed nothing is found to be faulty).

[gwoods]

I'm not trying to bust your a*s I was just saying that that surprise surprise a Mopar still not only has grease fitting but crappy suspension components. Although I have always coveted the beastly SRT-10.

There is a reason DC stuff is 1/2 price?

I'd own another Ram but it would be a Dana 60 rear end, 727 torque flight race prepped transmission and a modern 6.1 hemi bored and stroked to 426 cubes. I have built this truck on paper for about $10,000

[SteveTheTech]

What a fun toy. Someday I dream of a toy, I could never settle on something though. Ten Gs isn't too bad for what you get, the truck is a monster but it cannot handle too much, I have missed any past articles when you had yours.

I really want a GTO, have since it was a concept. I would get in way too much trouble with a stock one though. The possibilities are mind blowing and the sound the monstrous V8 makes is like nothing imported. Infiniti is still by far my favorite brand as I like the product but come on......

Yet another thread jacked by Jeff and Steve

[geoff_diamond]

Yeah, I'm not going to be so quick to give up on this. I, legitimately, think there is something going on here - I wouldn't expect the break-in to begin at 8K miles. It's incredibly frustrating because they can never really drive the car for a long enough period of time to experience what I do, and I'm not sure that it's something you'd notice in the passenger seat (aside from thinking your driver just doesn't know how to keep a car between the lines).

[bradhi]

Looks like there's been no activity on this post in a while; was there ever a resolution to the bump steering? I'm having a similar issue with my 08 G37S.

[bradhi]

Looks like there's been no activity on this post in a while; was there ever a resolution to the bump steering? I'm having a similar issue with my 08 G37S.

incase anyone is still interested in this post. I put new tires on my car and the bump steer went away completely.