1999 Chevy Suburban

1999 CHEVROLET SUBURBAN
140,000 MILES • V8 • 4WD • AUTOMATIC
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BUZZ354
  • MEMBER
  • 5 POSTS
I have a vibration under load. It started between 35 to 40 mph. It now starts about 25 mph, today on the higway it became more pronounced and I began getting a sulfur smell. I had the corner mechanic test drive it when the vibrations started and was told there was nothing wrong with the vehicle. The mileage is also a little off i think.
Dec 16, 2008 at 10:19 AM
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JAMES W.
  • ✓Experienced Mechanic
  • 2,394 POSTS
First thought is a bad joint on a drive shaft causing the vibration. The usual speed for a bad joint to show up is 40 to 45 mph and gets lower as it worsens. The sulphur smell may be idicative of your catalitic convertor going bad.
Dec 16, 2008 at 11:02 AM
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