Symptoms of bad rack n pinon
#1
Symptoms of bad rack n pinon
Anyone know what symptoms you will have if the rack and pinion is going bad?
Occassionally, the steering wheel acts like it is catching on something when driving and a slight correction in path of travel is needed. With a little force, the steering wheel moves but will cause a jerk feeling in the stability of the car. Power steering fluid is topped off, pump is not whining or making noise and the car does not do this unless it is cold outside nor does it do this at idle sitting still. Any suggestions? Tire air pressue is good. New tires too.
Occassionally, the steering wheel acts like it is catching on something when driving and a slight correction in path of travel is needed. With a little force, the steering wheel moves but will cause a jerk feeling in the stability of the car. Power steering fluid is topped off, pump is not whining or making noise and the car does not do this unless it is cold outside nor does it do this at idle sitting still. Any suggestions? Tire air pressue is good. New tires too.
#3
Worn steering racks can develop a condition referred to as "morning sickness". Internal seal leakage causes the steering to be stiff or irratic when cold, but levels out to a more "normal" state after the system heats up and the seals expand. If that's what you're experiencing, your rack is shot and should be replaced.
#4
Worn steering racks can develop a condition referred to as "morning sickness". Internal seal leakage causes the steering to be stiff or irratic when cold, but levels out to a more "normal" state after the system heats up and the seals expand. If that's what you're experiencing, your rack is shot and should be replaced.
#5
Well, I guess that could describe it. Kinda like trying to steer and your knee catches the bottom of the steering wheel momentarially and may only do it once in a couple days. I was thinking maybe the power steering pump could be acting up or something like a ball joint or tie rod end binding. Just didn't know if there was a common symptom of the rack needing replaced.
Sounds like the pump could be going bad. Have you checked the fluid?
#6
Join Date: Nov 2007
Location: Eastern PA,
Posts: 10,353
The Morning sickness Camaro 69 described is about the only thing on the rack that can be fixed or atleast we use to fix it. There is a rebuild build kit that requires the removal of the Pinion and new seals installed. I have done dozens of GM racks I still have the GM required tools in my box.
Based on your discription I think the lower pinion bearing is coming apart. Its running more like a Cam then a bearing and giving you tight spots. It could be a Power steering pump but I would think you would hear something also the tight spot would be random. You could jack the car up and turn the wheels with the car off and no weight and see if it feels even stop to stop. If it has a tight spot it is a mechanical failer in the rack. Replace it. LS1 rack time
Based on your discription I think the lower pinion bearing is coming apart. Its running more like a Cam then a bearing and giving you tight spots. It could be a Power steering pump but I would think you would hear something also the tight spot would be random. You could jack the car up and turn the wheels with the car off and no weight and see if it feels even stop to stop. If it has a tight spot it is a mechanical failer in the rack. Replace it. LS1 rack time
Last edited by Gorn; 12-11-2010 at 11:37 AM.
#7
The Morning sickness Camaro 69 described is about the only thing on the rack that can be fixed or atleast we use to fix it. There is a rebuild build kit that requires the removal of the Pinion and new seals installed. I have done dozens of GM racks I still have the GM required tools in my box.
Based on your discription I think the lower pinion bearing is coming apart. Its running more like a Cam then a bearing and giving you tight spots. It could be a Power steering pump but I would think you would hear something also the tight spot would be random. You could jack the car up and turn the wheels with the car off and no weight and see if it feels even stop to stop. If it has a tight spot it is a mechanical failer in the rack. Replace it. LS1 rack time
Based on your discription I think the lower pinion bearing is coming apart. Its running more like a Cam then a bearing and giving you tight spots. It could be a Power steering pump but I would think you would hear something also the tight spot would be random. You could jack the car up and turn the wheels with the car off and no weight and see if it feels even stop to stop. If it has a tight spot it is a mechanical failer in the rack. Replace it. LS1 rack time
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