Q: hi! got new half-shafts aka drivetrain in the start of this year and now im getting vibrations when accelerating in second gear

asked by on

got new shafts aka drivetrain in the start of this year and now im getting vibrations when accelerating in second gear, could it be that the half shaft are bad ?

My car has 67600 miles.
My car has a manual transmission.

Yes, start by checking for play in the shaft joints and check the motors mounts. If only one side is bad use chassis ears to isolate which side is causing the problem. If the half shafts were "bad" (as in imbalanced), you would have had this issue (vibration) from the beginning unless of course a balance weight fell off (if used, sometimes rubber dampers are installed on shafts). However, it is possible for the half shafts to wear and create excess clearance, particularly on inboard joints that could create your symptom under acceleration.

The question then becomes why did the CV fail prematurely? One overlooked area are the motor mounts - but this is less likely since the car is only 4 years old. If the motor mounts are broken, worn, misaligned, or sagging you will get vibration and shudder and that misalignment WILL also prematurely wear out your axles because your CV joints would not be working at the design angle (i.e., the load is in the wrong spot). Depending on how you drive and the miles on the car, check the motor mounts. Check the CV shafts for excessive play. If the problem is not the CV shafts, really any rotating component is suspect. If you need help with this, a technician from YourMechanic can inspect the vibration and help you make the correct repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. hi! got new half-shafts aka drivetrain in the start of this year and now im getting vibrations when accelerating in second gear

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Do you have to lift the engine to change to oil pan

Hi, thanks for writing in about your Ford 500. The short answer is no. You'll have to remove the catalyst, bracket, and then the transmission's lower inspection cover. Once that's done, remove the oil filter adaptor to the oil pan...

Q: Woobing noise, change as the speed changes

This is almost certainly tire-related. The fact that the sound correlates to the speed is a dead giveaway. The only other sound that correlates to speed like you describe would be like a rubbing brake pad or something, but that...

Q: Could I be having transmission trouble and alternator trouble?

Hi there. To start with, the lights could be dimming for the alternator is not producing enough amperage. If the battery is good and holds a strong charge, put a load on the battery while the engine is running at...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...