I have an 05 Malibu classic with 55k miles on it. The car takes a few tries to start and when it does it revs high and then drops down to idle. Also when i stop at red lights it sort of dips down lower in the RPMs. What could be wrong with my car?

 

anyone? this is really starting to concern me

 

is there a check engine light on?

 

no check engine light