The steering rack does not return to center?

2006 INFINITI G35
150,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
SEBASTIANFROMNJ
  • MEMBER
  • 40 POSTS
Hi, I have a customer that had their rack replaced at a nearby shop and said his rack doesn’t return to center. Said it did before the steering rack replacement and thinks it was a defective rack. So, we replaced the rack because he didn’t want to go back to the other shop. The steering rack still doesn’t return to center. It doesn’t even try to return it will do circles if you let it

The car is lowered and has 19” wheels on the back and 18 on the front but customer states this was like this before, and rack did return to center

Things we’ve checked:
Perfectly aligned toe.
Strut mounts are free moving.
Lower Ball joints are free moving and new.
Tie rods are new.
Power steering does work but it does seem to have a slightly increased effort while sitting still, pump does not whine or make noise, and you can turn it with one hand still.

I’ve tried adjusting the pinion load on the rack and it does not change anything in either direction.
The wheels do track back to straight in reverse but not forward.
Dec 26, 2023 at 2:10 PM
Advertisement
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,856 POSTS
Do the front wheels have an excessive amount of camber? Positive caster is the main cause for this kind of problem. Can you please shoot a quick video with your phone so I can tell you what's going on? You can upload it here with your response.
Dec 27, 2023 at 12:27 PM
Avatar
SEBASTIANFROMNJ
  • MEMBER
  • 40 POSTS
Okay.
Dec 27, 2023 at 3:56 PM
Advertisement
Avatar
SEBASTIANFROMNJ
  • MEMBER
  • 40 POSTS
Here’s one wheel passenger.
Dec 27, 2023 at 3:57 PM
Avatar
SEBASTIANFROMNJ
  • MEMBER
  • 40 POSTS
Passenger camber.
Dec 27, 2023 at 3:57 PM
Avatar
SEBASTIANFROMNJ
  • MEMBER
  • 40 POSTS
Driver.
Dec 27, 2023 at 3:57 PM
Avatar
SEBASTIANFROMNJ
  • MEMBER
  • 40 POSTS
Driver camber.
Dec 27, 2023 at 3:58 PM
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,856 POSTS
Thank you for the video and images. if you disconnect the steering rack from the steering wheel, does it turn easily? Also, do not spin the wheel once it is disconnected because it will ruin the clock spring spiral wire. When the car is on the rack can you move the steering by the tire manually?
Dec 28, 2023 at 7:55 AM
Avatar
SEBASTIANFROMNJ
  • MEMBER
  • 40 POSTS
Yes, I believe so.
Dec 28, 2023 at 8:10 AM
Avatar
SEBASTIANFROMNJ
  • MEMBER
  • 40 POSTS
Yes I believe so
Dec 28, 2023 at 8:10 AM
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,856 POSTS
Can we look at the rack pressure return line does it have a kink in it or is it smashed down? Also, can you tell me the caster specs?
Dec 29, 2023 at 10:04 AM
Avatar
SEBASTIANFROMNJ
  • MEMBER
  • 40 POSTS
So, I figured it out, today just now.
Advance Auto only sells one rack for g35 in general AutoZone has a specific one for coupe. The coupe one I purchased is a little bit longer. Installed it and realigned the wheels and it is working, had to adjust the preload on the rack for some reason but I’m going to assume it’s because he’s lowered with different size wheels/tires.
Dec 29, 2023 at 10:50 AM
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,856 POSTS
Thanks for the image, thanks for letting us know, we are here to help, please use 2CarPros anytime.
Dec 30, 2023 at 10:52 AM