Steering jerk when releasing brake pedal

2005 HOLDEN COMMODORE
157,000 MILES
Avatar
ATUL667
  • MEMBER
  • 4 POSTS
Hi. My car is a 2005 Holden VZ Commodore (Pontiac GTO).
A few months back, I used to get a jerk at the steering wheel when I release the brake pedal. It does not happen when the brake pedal is pressed. When I gave my car to the workshop, the people there told me that the following parts are worn and need to replaced:
Front Lower Control Front Arm bushing
Lower Control Arm bushing
Rear Axle Upper Control Arm bushing
Transmission Mount
Engine Mount Right & Left

So, I only got the 'Front Lower Control Front Arm' replaced and the jerk was completely gone! There was no jerk while releasing the brake pedal and the steering wheel was smooth. The replaced part is Genuine GM part.

But now, after about 2 months, the same problem is back. It is not as hard as before but the steering jerk can be easily noticed when releasing the brakes.

Why is this problem back? Is it because the replaced part is damaged?
Or is it because I didn't replace Lower Control Arm bushing, Rear Axle Upper Control Arm bushing, Transmission Mount and Engine Mount Right & Left along with Front Lower Control Front Arm bushing?
Nov 19, 2013 at 7:15 AM
Advertisement
Avatar
MHPAUTOS
  • CERTIFIED EXPERT
  • 31,937 POSTS
This may well be the items not replaced, but get the front wend re checked just in case there is something else amiss.
Nov 20, 2013 at 12:25 PM
Avatar
ATUL667
  • MEMBER
  • 4 POSTS
The lower control arm bushing and rear axle upper control arm bushings are yet to be replaced.
But the problem was completely gone after replacing just the front lower control arm bushes and now after 2 months it's back again but not as strong as before.
If the replaced part is replaced again, will the problem be solved?
Or should I replace the other two parts without replacing the replaced part?
Or should I replace all the parts?
Is this in any way related to engine and transmission mounts?
Nov 22, 2013 at 1:39 PM
Advertisement
Avatar
ATUL667
  • MEMBER
  • 4 POSTS
It's been 10 days since I posted the reply. I am still waiting for a response from someone.
Dec 1, 2013 at 12:09 PM
Avatar
MHPAUTOS
  • CERTIFIED EXPERT
  • 31,937 POSTS
Have been off line due to no internet, I live in a remote location and we are the last to get fixed when things go wrong, do you still need assistance with this problem?
Dec 31, 2013 at 4:07 PM
Avatar
ATUL667
  • MEMBER
  • 4 POSTS
I replaced the engine mounts about 2 years back. The old mounts were so worn out that the dashboard was literally shaking when idle.
I couldn't afford to get the GM mounts, instead I got cheaper ones for 1/4th price. After replacing, the vibrations were gone. But now, i can feel small vibration on the car's idle. The vibrations can be felt but it is very small.

So my question is,
should I replace the cheap mounts with GM mounts?
can this small vibrations in any way affect the other components (controls arms, bushes, etc) of the car, like damage them or reduce the life, etc?
Jan 15, 2014 at 4:45 AM
Avatar
MHPAUTOS
  • CERTIFIED EXPERT
  • 31,937 POSTS
Excessive vibration can cause ongoing problems, so this is not desirable, I would suggest to replace the mounts with genuine if at all possible, you should get a far better life form these.
Jan 15, 2014 at 2:21 PM