Hey guys, I haven't posted a thread here in awhile. MY last few threads were pretty hilarious with titles like "vTec Problems". Anyways, I have done a lot of work to my car in the previous 8months. To date i've installed: Tein street advance coilovers, skunk2 upper control arms, had new lower ball joints pressed into the LCA, rear camber arms, and rear toe arms. The car is sitting on goodyear eagle f1's (235/45/17) with 8/32 tread.. pretty much brand new. The car just got aligned last week but I am still having some issues with vibration in the car.

Before I installed these suspension components and had an alignment the steering wheel shake was ridiculous. The entire wheel would shake under acceleration and it was definitely attributable to the blown balljoints and wack alignment. However, the car is still giving me some issues around 60-65mph. The steering wheel no longer shakes at all but now it feels like i'm driving over tennis balls at 60, there's a lot of shaking and hesitation coming from the front of the car. The car has no CEL's on and had it's engine mounts replaced about a year ago for inspection. The mileage is at 106k and I have yet to complete the 105k service but I don't think that's the problem.

What I think is causing the problem are the wheel bearings. Maybe with a combination of a bad driver side axle(inner cv joint is ripped). I researched online ways to determine bad wheel bearings and I came across some pretty inconclusive information. So what i'm asking is, what is a cause of wheel wobble or vibration at this speed and would bad wheel bearings be a cause of this? It's not noticeable until you start going above say 40% throttle anywhere from 60-65.

Thanks guys, any input is appreciated

 

I'm pretty sure if you had bad wheel bearings, they would be noisy. I'd definitely replace the CV joint and go from there.

 

Okay I think that's a good place to start too. My passenger side axle was actually just replaced for inspection in february... but i guess my driver side was still "within spec"

 

I know this may be a dumb question but are your wheels balanced and not bent at all? Check and see if any of those stick-on wheel weights came off. Also if your suspension was "wack" you could have unevenly worn tires. Try getting your wheels rebalanced or rotating them to the rear and see if anything changes.

 

I had this and Discount Tire flagged it as a bent wheel, so have your tire shop check the wheels.

Having said that, are you saying that the wobble depends on the throttle setting? Would it happen when decelerating from a higher speed? Hard acceleration through 60-65?

 

I really don't think one of my wheels is bent, but i guess it's possible they're not balanced properly. It wouldn't happen decelerating from a higher speed say 75 back down to 60. However, if i were to try to accelerate from 60-65 i can definitely feel a wobble. I wouldn't classify it as "hard" acceleration either, as it's extremely evident with minimal acceleration. I have also noticed that if the car is on a hill and goes from 60-70 without any increase in throttle there will be no wobble.

 

You need to isolate this to a drivetrain or wheel problem. So there's a wobble with minimal/40% acceleration, but I was really asking if you would feel the wobble with hard acceleration. It sounds drivetrain-related since there is no wobble when gravity accelerates the car.

 

Well if you read OP you would see that i have mostly isolated this to a drivetrain-related problem. I think either my inner CV joint driver's side or my wheel bearings are going bad they don't squeal horrendously but i can definitely hear something

 

You are welcome.