V2 Wheel Clicking - Page 5

Gary Wells · #61 (**permalink**) 10-02-09, 08:29 AM

Quote:

Originally Posted by anonfrank

It sounds like they are going through process of elimination. Not the wheels, not the lugs, now we'll see it's not the rotors. How about bearings? Who knows where this will go. I can't believe this problem wasn't obvious on pre-production models, it's such an obvious one.

In all fairness to GM, that would depend upon how many pre-production cars were there, if any, and how many miles did they test them, but I can't believe that they haven't found the cause yet. I have been thinking wheel bearings all along.

ewill3rd · #62 (**permalink**) 10-02-09, 09:05 AM

I wonder if they will find what I have been seeing on the V1?
I have had 3 or 4 of these with a single click with load changes.
Example, back up, stop firmly, shift to first and let out the clutch "snap".
Same goes for the other direction.
Often it will do it leaving stops.

I have chased a few down and found little success without replacing the hub assembly on the offending wheel.
Seems to be a spline issue, haven't pinned it down.
If I could hear one of these I could tell you if it is the same noise.
No one here has complained of it yet.

CTS-V-TWIN · #63 (**permalink**) 10-02-09, 10:54 AM

I will ask the dealer if they replaced the bearings, but isn't the rotor/hub/speed sensor and bearings all one unit? Correct me if I am wrong.

I will ask the tech working on the car if they replaced the bearings when I see him and let you guys know.

As far as this problem coming up in R&D testing on pre-production models, all I can say is that it is GM. I just can't believe that they didn't or couldn't hear it during testing. I mean, COME ON!

SG

ewill3rd · #64 (**permalink**) 10-02-09, 10:56 AM

Yes the hub and bearing are one assembly with the sensor.
I had one that I replaced both hubs on (qquik4u) and I think two others that got one each.
Is that when you notice the noise?

CTS-V-TWIN · #65 (**permalink**) 10-02-09, 11:02 AM

Quote:

Originally Posted by ewill3rd

Yes the hub and bearing are one assembly with the sensor.
I had one that I replaced both hubs on (qquik4u) and I think two others that got one each.
Is that when you notice the noise?

I haven't picked up my car as of yet, but the clicking noise is constantly there when turning left or right and it doesn't have to be full lock either. We will see what happens after I pick it up and start driving it again.

I really think GM is chasing their tail here. I don't think they know what is causing the problem, so they are throwing parts at it hoping it would fix it, but the problem is that the parts are not revised or a new version. They are just replacing bad parts with bad parts.

SG

ewill3rd · #66 (**permalink**) 10-02-09, 12:32 PM

I wish I could say I have never been in that position.

tedcmiller · #67 (**permalink**) 10-02-09, 01:52 PM

The clicking problem seems to occur when the wheel is turned from the straight-ahead position. Some people say it occurs only when the wheels are turned to or near the lock postion (which is what happens in my case); others indicate clicking at wheel positions not near the lock. I am guessing that something on the rotating parts are contacting something else that is not rotating and this occurs only when the wheel is moved from the straight-ahead position and is fully loaded with the weight of the car and at least one passenger. These circumstances combined with the fact that only some, not all, of these cars exhibit this problem make it very difficult to diagnose. Does the 2010 CTS-V have this problem? Have enough miles been put on the 2010 CTS-Vs for this problem to show up?

Palagius · #68 (**permalink**) 10-02-09, 06:55 PM

Update:

I took my V2 in today (Moore Cadillac in Virginia) specifically for the clicking. I was easily able to demonstrate the noise to my service adviser.

My service ticket says "Wheels improperly torqued. Perform service bulliten [sic] 2261126 and torque wheels to 158 ft lbs." The car no longer exhibits the clicking at all. I realize others have had recurrences and I'll post if I end up being one of those people. I'm at 2900 miles right now.

rjoffe · #69 (**permalink**) 10-02-09, 07:00 PM

Quote:

Originally Posted by Palagius

Update:

I took my V2 in today (Moore Cadillac in Virginia) specifically for the clicking. I was easily able to demonstrate the noise to my service adviser.

Palagius,

If the clicking comes back, is it possible for you to drive down to Lindsay and have them take a look. Ewill3rd (Bill) is the super tech there, he has worked on many V1's and is a frequent poster here. Providing him with a first hand look at this might be very useful for all.

Ron

mpouls1 · #70 (**permalink**) 10-02-09, 09:00 PM

I hope some fix can be made, soon. This "torqe" thing is absurd and the only reason I haven't taken mine in yet. People stare at me when driving slowly or parking and I'm pretty sure it is not for the car's looks.

Build date: 3/09
Miles: ~3500 when it started

Michael

GMX322V S/C · #71 (**permalink**) 10-02-09, 09:15 PM

I'm convinced that this problem is inherent to the design and makeup of our wheels; I've had mine in several times for the issue and they've applied the TSB for the 3rd time now. Always comes back within 1,500 miles or so. I've heard the "crinkling/ticking" from outside the car many times and to me it simply sounds like micro-creep/judder at the wheel/hub interface being amplified by the inherent lightweight forged design of the wheel itself. Tap lightly on the wheel spokes with a hard object and it "rings."

While I was putting the tune back into the car after I got back from the dealer, I could hear very faint renditions of the crinkling/ticking noise as the wheels cooled off in my quiet garage. I don't think it was the exhaust or anything else because after starting the engine after applying the tune I let it warm up again for a few minutes before shutting it down and sat there for as long as when I heard the sounds before and didn't hear them again.

CTS-V-TWIN · #72 (**permalink**) 10-02-09, 09:20 PM

Quote:

Originally Posted by GMX322V S/C

I'm convinced that this problem is inherent to the design and makeup of our wheels; I've had mine in several times for the issue and they've applied the TSB for the 3rd time now. Always comes back within 1,500 miles or so. I've heard the "crinkling/ticking" from outside the car many times and to me it simply sounds like micro-creep/judder at the wheel/hub interface being amplified by the inherent lightweight forged design of the wheel itself. Tap lightly on the wheel spokes with a hard object and it "rings."

While I was putting the tune back into the car after I got back from the dealer, I could hear very faint renditions of the crinkling/ticking noise as the wheels cooled off in my quiet garage. I don't think it was the exhaust or anything else because after starting the engine after applying the tune I let it warm up again for a few minutes before shutting it down and sat there for as long as when I heard the sounds before and didn't hear them again.

I agree with you 100%. It is a bad wheel design and it will be present on all 2009 and 2010 CTS-Vs and future years as long as they keep the same wheel design.

SG

mpouls1 · #73 (**permalink**) 10-02-09, 09:54 PM

Quote:

Originally Posted by GMX322V S/C

I'm convinced that this problem is inherent to the design and makeup of our wheels; I've had mine in several times for the issue and they've applied the TSB for the 3rd time now. Always comes back within 1,500 miles or so. I've heard the "crinkling/ticking" from outside the car many times and to me it simply sounds like micro-creep/judder at the wheel/hub interface being amplified by the inherent lightweight forged design of the wheel itself. Tap lightly on the wheel spokes with a hard object and it "rings."

While I was putting the tune back into the car after I got back from the dealer, I could hear very faint renditions of the crinkling/ticking noise as the wheels cooled off in my quiet garage. I don't think it was the exhaust or anything else because after starting the engine after applying the tune I let it warm up again for a few minutes before shutting it down and sat there for as long as when I heard the sounds before and didn't hear them again.

Hmm... Anyone got aftermarket rims?

Palagius · #74 (**permalink**) 10-02-09, 10:05 PM

Quote:

Originally Posted by rjoffe

If the clicking comes back, is it possible for you to drive down to Lindsay and have them take a look. Ewill3rd (Bill) is the super tech there, he has worked on many V1's and is a frequent poster here. Providing him with a first hand look at this might be very useful for all.

Yes, I'm willing to do that should the issue reappear. I certainly hope it doesn't though.

Gary Wells · #75 (**permalink**) 10-02-09, 10:32 PM

Quote:

Originally Posted by mpouls1

Hmm... Anyone got aftermarket rims?

Yes, somebody on here a ways back had gone to aftermarket rims and did not have any clicking with the aftermarket rims, but did have clicking with the factory rims. This was maybe 3 or 4 months back, dunno on name or thread subject. Come to think about it, I don't remember anybody with the clicking issue posting on here that had aftermarket rims. Hmm? If that's the only solution, I am going to be brokenhearted. These are the only rims that I like on these cars.