So many have had the steering wheel shake issue, but mine seems a bit different.
On the highway around 60 mph, I get a significant steering wheel shake that comes and goes roughly every 50 seconds like clockwork. At its peak it is shaking a ton, and at its low it's perfectly steady. It almost feels like something is going in and out of phase. My initial thinking was that I had mud caked into both of my front rims causing an imbalance, and slight differences in tire diameter may have caused them to be in and out of phase over time, but there was nothing there. I changed over to my summer wheels and the vibration is lessened significantly, but I can still feel it somewhat. I haven't been able to confirm if it's the same 50 second period, which is my next task.
At any rate, has anyone else had this type of cyclical shake issue? Since it comes and goes, it doesn't seem like a bad LCA or other suspension component to me. All of the suspension joints seem tight and there isn't excessive play in the steering wheel. I'm stumped, so curious what everyone else thinks.
Interesting. I have a similar issue, and I'm starting to think it's just a balance issue. Some times my car will be glass smooth, then others the steering wheel will shake enough to shake my arms. It seems to change as I go around curves/turns. As in the front wheels are lined up differently as they travel at different speeds through turns.
I think my TPMS are going out as well, so I'll have to get it to a shop and replace those and have them rebalanced and see what happens.
2009 PBM GT
Under the Knife Again
Wiseco Pistons, K1 Rods, Johnson Lifters, BLP Keep Hatin' PDS Cam, Roto-Fab, BLP Ported Intake and Throttle Body, Kooks 1-7/8 long tubes, XForce Varex Catback, ZL1 Converter, Camaro Trans Pan/Filter, GXP Brembos
Breyton GTS-AV Wheels, 6k HIDs, Holden Steering Wheel and Paddle Shifters, Eibach Springs, 35% Tint
Tuned by Day Tuning