My girlfriends 99 has been acting very weird lately...it has been intermittently shaking in the front end then stopping..she's driven it for 3 days with no problems and it did it again today....but on her way home it started doing it while she was going about 60 and the speedometer started going down even though she wasn't slowing down at all she also said it got very hard to steer and it feels kinda like her front tires arre flat when it does this....I'm thinking its probly some kind of sensor...I first thought it was something in the suspension or a cv axle or bearing...but now I don't know what to think of it