Vibration at Idle and Acceleration

2000 VOLVO V70
110,000 MILES • AWD • AUTOMATIC
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VOLVODRIVER
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  • 2 POSTS
I have a 2000 Volvo V70 XC. Recently there has been a large amount of vibration both while idling and even more so when accelerating. The vibration is to the point where I don't feel comfortable driving the car, feels like the whole thing is going to fall apart at high speeds. My first thought was the motor mounts so I bought new mounts and had them replaced but the vibration is still there. Would this be caused by the drivetrain?
Jan 25, 2011 at 7:57 PM
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JIS001
  • ✓ASE Certified Mechanic
  • 3,412 POSTS
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Is the check engine light flashing when under load?
Jan 27, 2011 at 6:24 AM
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VOLVODRIVER
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  • 2 POSTS
Yes. There have also been several occasions where it seemed to have trouble shifting when driving at high speeds.
Jan 27, 2011 at 1:38 PM
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JIS001
  • ✓ASE Certified Mechanic
  • 3,412 POSTS
  • ASE Certified Mechanic
OK have the engine control module scanned for codes to see which cylinder is misfiring since that is what a flashing check engine light indicates. The most likely cause will be a bad ignition coil. Check coil for proper spark, check spark plugs and make sure you are using Volvo spark plugs. Let me know what you find.
Jan 28, 2011 at 5:37 AM
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