Hey eveyone I got my Deville a aliment and tire rotation done today and there's something wrong about the way the car is cruising... It feels like my suspension has been tightened for example there's less spring action and I can feel the small pot holes in the road that i never use too, I also hear rattling coming from the dash cause the ride is much more rough. Im not sure what the problem is and the GM dealer told me there was nothing wrong and he did a proper job. Anyone got a clue what I should do to fix it?

Check the tire pressures. Maybe they pumped them up higher than you had them.

I already checked the pressure and its fine.

Hey eveyone I got my Deville a aliment and tire rotation done today and there's something wrong about the way the car is cruising... It feels like my suspension has been tightened for example there's less spring action and I can feel the small pot holes in the road that i never use too, I also hear rattling coming from the dash cause the ride is much more rough. Im not sure what the problem is and the GM dealer told me there was nothing wrong and he did a proper job. Anyone got a clue what I should do to fix it?

Ever figure out what it was?