Falcon SXR8

My ba had the shudder coming on after driving for a bit and it was the brake booster, had it " adjusted " still no good so chucked it and put a new one on and been fine ever since.

Just noticed today when I have the ignition on without car running and push the throttle at about half throttle the boost solenoid starts buzzing is that normal ??? I noticed it while trouble shooting some other problems I have with my T at the moment Thanks

Try turning key to on position then foot flat then crank it over If I remember right otherwise mine would start too. Also how does this little bit of oil affect anything ????????? Most cars I have owned have had oily TB and never had problems