I have a Mazda6 ,2005 , 5 speed with 70K miles on it and it has started acting like the clutch is slipping in second and third gear that I have noticed but could be in the other gears alos... 1st gear takeoff will snap your neck still. it also seems to do it mostly when its cold... any ideas what it could be , thoughts or suggestions... Thanks

 

Hmmmm? 'Don't know as its usually the lower gears, 1st and reverse come to mind, where a slipping clutch rears its ugly head first!
What makes you feel it's slipping? After the gear (2nd or 3rd) are fully engaged and the clutch pedal is fully released, does the tachometer and engine revs jump up when accelerating briskly only to settle back down to normal?

 

How does the car react once the car is warmed up?