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Rack pinion issues

Tiny
DOOB
  • MEMBER
  • 2007 PONTIAC GRAND PRIX
  • 110,000 MILES
I hit a pothole and broke mounting bracket on the right side of my rack and pinion. So I replaced it with a re-manufactured one which lasted approximately two months and the right side mount bracket broke on it. So I replaced it again and again the same mount broke. I then replaced the rack even again plus new strut and spring on right side. Now it has broken again. Same mount. So please what is going on? Help me.
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Tuesday, September 10th, 2019 AT 3:54 PM

13 Replies

Tiny
94 TRANSAM
  • MECHANIC
  • 680 POSTS
Hi Doob, welcome to 2CarPros. Lets see what we can figure out here.

Let me start with a question or 2. If I read your post right you have changed the bracket 3 times? Is it 3 times with the same after market bracket?

Is it breaking in the same place every time? Is it breaking where a weld is?

Let me know, Rich.
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Tuesday, September 10th, 2019 AT 8:57 PM
Tiny
DOOB
  • MEMBER
  • 70 POSTS
Yea. I think so. Its a cordone brand.I believe it ran about 180$ At advance auto. Probably should just go to auto salvage. Try to get a oem. Thanks for responding. Im stumped.
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Wednesday, September 11th, 2019 AT 10:14 PM
Tiny
94 TRANSAM
  • MECHANIC
  • 680 POSTS
I would say they are using bad steel or if the welds are breaking they have bad welds. The cheapest way out would probably be to take it to a welder and have them put a good weld on it.

Rich.
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Wednesday, September 11th, 2019 AT 11:23 PM
Tiny
DOOB
  • MEMBER
  • 70 POSTS
You think I could maybe beef up the weld on a new rack in order strenthen it?
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Wednesday, September 11th, 2019 AT 11:48 PM
Tiny
94 TRANSAM
  • MECHANIC
  • 680 POSTS
If you can give me a good picture of the mount and where it is breaking I can tell you what you need to do to fix the issue. Several would be better, with one from back far enough that I can see the set up and where the stresses will come from.

Rich
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Thursday, September 12th, 2019 AT 9:05 AM
Tiny
DOOB
  • MEMBER
  • 70 POSTS
Ill see what I can do. Thanks
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Thursday, September 12th, 2019 AT 1:25 PM
Tiny
94 TRANSAM
  • MECHANIC
  • 680 POSTS
You are welcome. I will be here!

Rich
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Thursday, September 12th, 2019 AT 7:24 PM
Tiny
DOOB
  • MEMBER
  • 70 POSTS
Hey Rich you think a new subframe would fix the problem?
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Monday, October 7th, 2019 AT 5:33 PM
Tiny
94 TRANSAM
  • MECHANIC
  • 680 POSTS
If its the brackets that are breaking and not the subframe then I doubt it will fix the issue.

Rich
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Monday, October 7th, 2019 AT 6:03 PM
Tiny
DOOB
  • MEMBER
  • 70 POSTS
Hey Rich I’m back. Haven’t fig out the rack problem yet. Can u tell me if this 07 Grand Prix sedan had magnasteer cause someone said if it did and I replaced it with out changing in and out tie rods that problem caused the problem. Also I looked up rpo code and found steering to be non variable. Whatever that means. Thanks for your input.
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Thursday, April 29th, 2021 AT 8:58 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
The Magnasteer system is a speed-dependent power steering system. It provides power assist at varying levels depending on need and the vehicle's speed.

Non-variable PS provided the same amount of assist regardless of speed and conditions. If that is what the rpo code indicated, it doesn't have magnasteer.

I hope that helps.

Take care,

Joe
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Saturday, May 1st, 2021 AT 10:06 PM
Tiny
DOOB
  • MEMBER
  • 70 POSTS
Hey Joe, I found the rpo sticker it shows a non magnasteer so I’m thinking I will replace it with a junk yard unit. I’m believing the cores used although rebuilt on inside had weak mount brackets probably just painted over rust.
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Tuesday, May 4th, 2021 AT 8:13 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

That makes things a bit easier. I don't know if you need them, but I attached the directions and pictures below specific to this vehicle for rack and pinion replacement.

I hope this helps. If you get a chance, let me know how things turn out for you. Also, let me know if you have questions or need help.

Take care,

Joe

See pics below.
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Tuesday, May 4th, 2021 AT 9:49 PM

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