1994 Mercury Cougar vibration

darlaleedarlalee Member Posts: 2
edited October 2014 in Mercury
Just bought a 1994 Mercury Cougar xr7 with 90,000 on it and noticed that the rear end shudders/vibrates around 35-45 mph. What could cause this? Otherwise it runs excellent and smooth. It doesn't always do this, either, only sometimes..


  • Mr_ShiftrightMr_Shiftright Sonoma, CaliforniaMember Posts: 64,482
    edited October 2014
    I'd guess tire balance if you feel this vibration in the seat of your pants. Second guess bent rim. Third guess---tighten those lug nuts! Fourth guess--bad U-joint or unbalanced drive shaft/bad carrier (center support) bearing or mount.
  • darlaleedarlalee Member Posts: 2
    Thank you Mr_Shiftright, will check those out.
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