[KingOfSoul]

Had the whop whop whop noise from front axles…. Replaced both axles and bearings. Still had problem and a new problem of driver side vibration while accelerating and only when it hit 2600-2900 RPM…. Immediately Replaced both axles again and solved the whop whop whop noise (must have had a bad axle that was NEW from Autozone because the second time I replaced with NAPA). However, problem solved of whop whop whop noise, but now I still have the vibration noise from driver side and now it also has a vibration sound when starting off from a stop to about 1500 RPM and then again 2600-2900 RPM…. Hard to believe i have two bad axles in a row from two different companies.

Any ideas are most appreciated. Thanks!

 

[plymouthcranbrook]

Hub bearing?

 

[KingOfSoul]

Nope. It was replaced

 

[bwdz75]

Nope. It was replaced

Just like the axle from auto parts store bearings are junk from there as well.
Before you get too far check your trans and engine mounts, you may have a worn mount or even a broken mount that is causing the axles to bind because the angle is wrong. You also have a "dog bone" mount to check as well.

 

[KingOfSoul]

Thanks…. Will check those although we did check the motor mounts and those are good. Where would you suggest getting another bearing?

 

[bwdz75]

Thanks…. Will check those although we did check the motor mounts and those are good. Where would you suggest getting another bearing?

Your Kia dealer. OEM original parts tend to go well over 100k miles but then people replace them with a part from the auto parts store that may not even be right and will certainly never make it half of that mileage.
Have someone sit in the car and hold the brakes real tight, raise the RPM to about 1000-1200 and have them shift reverse to drive and back to reverse back to drive a few times while you watch the engine to see if it moves too much. Then look at your front wheels while they do it to see if you get a lot of movement back and forth on the wheel which would indicate worn control arms or ball joints.

 

[KingOfSoul]

Will do and will let you know what we find! Thanks!!

 

[westslope]

.....
Have someone sit in the car and hold the brakes real tight, raise the RPM to about 1000-1200 and have them shift reverse to drive and back to reverse back to drive a few times while you watch the engine to see if it moves too much. Then look at your front wheels while they do it to see if you get a lot of movement back and forth on the wheel which would indicate worn control arms or ball joints.

This method works for both checking motor mounts and the lower control arms (LCAs)?

Would it not be better to slightly raise one corner of the front end and move the wheel horizontally back and forth in order to check the LCAs? Looking for any and all guidance here.

 

[bwdz75]

This method works for both checking motor mounts and the lower control arms (LCAs)?

Would it not be better to slightly raise one corner of the front end and move the wheel horizontally back and forth in order to check the LCAs? Looking for any and all guidance here.

You won't be able to move the wheel with it up in the air, you can check the ball joint that way but to check the control arm bushings you need to stick a pry bar in there to check it.