Close
What could cause a significant vibration at interstate speed.
1999 Buick Park Avenue

What could cause a significant vibration at interstate speed.

(1999 Buick Park Avenue)
I have replaced tires, struts and shocks, front end aligned, tires balanced. Car drives fine until @ 63 mph until @ 75 mph and then a significant vibration. It lessens after 75 mph but does not go away. It is not noticeable below 63 mph. Car has @ 110,000 miles on the odemeter. Thanks
1 answer & 2 comments
Popular Answer
on October 21, 2014
Does the vibration change with load conditions? At 70-75 , when it's worst , put in neutral , what happens?
Sign in to reply
on October 21, 2014
No change in load conditions. I never tried to put in neutral at speed. I will try I get back to you.
on October 22, 2014
OK . . . .
General Diagnosis
$88 - $111 Learn More
on October 21, 2014
Does the vibration change with load conditions? At 70-75 , when it's worst , put in neutral , what happens?
Sign in to reply
on October 21, 2014
No change in load conditions. I never tried to put in neutral at speed. I will try I get back to you.
on October 22, 2014
OK . . . .

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
When the ac on low/med settings, the car doesn't shake. but when ac is on high setting car shakes and makes loud fan...
Ac stays when car is running. the heater will work asbwell