I got my tranny mounts done and yesterday just had my motor mounts replaced and.... no change still have a vibration around 60 mph. Going to my machanic later htis week to just take a good look an everything on the car, now though im starting to get scared that this might be a serious problem, subframe cracks or joints that are destroyed :[

 

Your car is completely Spock, wheels aligned, right psi, suspension good?

 

I may have to resort to this too. its so weird how stiffening the suspension reduced/masked the problem :shrugs:

yes too all. wheels are set to factory specifications. running 33-34psi all 4 tires. suspension good besides one of the coils being seized but i dont think that would contribute to it

 

Ah yes that could very well contribute to it, a stiff suspension will naturally cause vibrations at high speeds because the the uneven road surface it not getting muffled out by a flexing wheel/suspension

 

sorry, what i meant being seized coil was the height adjustment collar.

 

ok, how about your brakes/ rotors, if old and warped that can cause it too. good luck tho, hope it isn't anything too serious or expensive

 

i forgot about my rotors! mine might be warped ill have to check but wouldnt that cause a vibration at anytime? Mine only happens at 55-64 after that there is no vibration.

 

Not necessarily, it depends on the severity of the warp , but if it gets worse as you brake that would be a good indication

 

Sometimes if i go over 100 mph and brake the car will shutter but not the same way when i accelerate and the the braking shakes dont happen anymore anyways but the acceleration shakes still do.

 

Ok, well I'm not sure about that, definitely get it checked

 

Yeah haha as said earlier i hot all my mounts replaced since they were all broken haha so my mechanic and i are going to go on a hunt for the weakest link. Hopefully ill have some updates for this thread in the next week!

 

 

Any updates to this?

 

Some say it's still vibrating till this day..