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Steering issues
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Author:  mark a. chew [ Sun Aug 18, 2019 10:13 pm ]
Post subject:  Steering issues

I wasn't sure where to post this since it's on my 2008 Grand Prix GXP... my apologies in advance.... I was driving my Grand Prix tonight and experienced a noise when turning the steering wheel the noise is hard to describe... I pulled into a school parking lot and the steering wheel felt like the was no power assist, while stopped, when the car started to move it steered normal, I checked the power steering fluid and it was fine. It started to thunderstorm and rain heavy, so I brought it home and will look into further in the morning. I had planned to take it or the Bonneville to Myrtle Beach in a few weeks. So I was hoping to figure it out and repair it. Will add further upon inspection.

Author:  nos4blood70 [ Mon Aug 19, 2019 10:25 am ]
Post subject:  Re: Steering issues

Have you ever changed the fluid or checked underneath for leaks or seeping?

Do your struts mounts make any popping noises over bumps or when turning?

Author:  CMNTMXR57 [ Mon Aug 19, 2019 11:32 am ]
Post subject:  Re: Steering issues

Are you losing fluid.

Here is why I ask that... On LS4 cars, there is a hose that runs down along the block from the pump. It likes to rub against the block. Rubbing causes... loss of power steering.

I had this happen on the Impala.

Author:  mark a. chew [ Mon Aug 19, 2019 3:26 pm ]
Post subject:  Re: Steering issues

Everything is dry underneath, no seepage, and the fluid was at proper level. Shortly after buying the car I replaced all the fluids. I will check the strut mounts, there is a noise from the top of the strut when turning, similar to a muffled pull chain for a ceiling fan rubbing. Lane, I know the hose your talking about, it's dry there too. I was wondering if a pulley going out. Making the belt slip. Had the A/C on when all this started. I will check the strut mounts, I know eventually I will need to replace the struts, and I haven't seen the Blistine that came on it.

Author:  CMNTMXR57 [ Mon Aug 19, 2019 3:41 pm ]
Post subject:  Re: Steering issues

Ok, just a first thought I had because I had been down that road with ours. :)

Author:  mark a. chew [ Tue Aug 20, 2019 8:23 am ]
Post subject:  Re: Steering issues

The hose you were speaking of Lane is it only a dealer available part. It was the first hose I checked. And as it's not leaking. If the pulleys need replaced ( two smooth and one ribbed ) are the bolts short enough to replace in car?? Then I heard someone say that the harmonic balancer fails, and wobbles on the LS4. ? I haven't ruled out the strut assembly. I will continue to check and advise. I appreciate your help nos4blood, and Lane.

Author:  CMNTMXR57 [ Tue Aug 20, 2019 12:26 pm ]
Post subject:  Re: Steering issues

Are you referring to the backside idler and then the one the runs to the front b that is right behind the Kent Moore serpentine tool for LS4's? If so, I don't think it can be done without dropping the subframe a little. The

Image

As to HB wobble, they all do on LS motors it seems. I wouldn't worry about it unless it is having an adverse affect on the belt.

Actually, found a diagram.

The two idlers that pinch the belt up to the alternator I think can be done (Albeit still tight), in the car. The tensioner and idler above the crank are in the frame rail and would need the subframe dropped.

Image

Author:  mark a. chew [ Wed Aug 21, 2019 9:27 am ]
Post subject:  Re: Steering issues

Ok, I was wondering if there would be enough room to remove the bolt to replace, on one of the pulleys ( smooth one near crank ) just beneath the fuse box. One other thing, replacement of struts, since the original Bilstein probably are no longer available. What would you recommend??

Author:  CMNTMXR57 [ Wed Aug 21, 2019 12:16 pm ]
Post subject:  Re: Steering issues

Whatever is available. :)

KYB has always had good stuff for that platform (I had them on my GTP), Monroe, etc... Many of the GM/AC Delco replacements are actually Monroe.

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