2000 Pontiac Montana Vibration when accelarating

2000 PONTIAC MONTANA
171,000 MILES • 6 CYL • FWD • AUTOMATIC
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TEAMBANZAI
  • MEMBER
  • 3 POSTS
When ever I apply gas to accelarate, If I am in the speed range of 43-53mph the car shimmies and vibrates a bit. This dissappears once a speed of 53+ is reached or if I am accelorating in a lower speed range. It is only when I accelorate in that range that I feel the vibration... If I am coasting at 48 mph or maintaining speed it does not vibrate.

Recent history - 4 new tires within 2 weeks... they have been balanced and rebalanced (rebalancing seemed to reduce the problem a bit). Brand new Tie-Rods within the last 2-3 weeks installed.
Apr 15, 2010 at 10:36 AM
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MERLIN2021
  • CERTIFIED EXPERT
  • 17,250 POSTS
Check engine and transaxle mounts, and ball joints, your shimmy problem is in the sweet spot for bad ball joints, or control arm bushings, and these had a terrible design on the control arms...
Apr 15, 2010 at 2:01 PM
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TEAMBANZAI
  • MEMBER
  • 3 POSTS
It was the CV Joint - repaired and drives smooth now.
May 14, 2010 at 1:00 PM
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MERLIN2021
  • CERTIFIED EXPERT
  • 17,250 POSTS
Most times when the CV is bad, the boot is ripped, and it clicks going around corners.
May 14, 2010 at 5:20 PM